B1 adjective #40 mais comum 7 min de leitura

nitric

§ What does it mean and when do people use it?

The word 'nitric' is an adjective that holds significant importance in the fields of chemistry and material science. At its core, 'nitric' describes something that contains nitrogen, particularly when that nitrogen is present in a specific chemical form or oxidation state. This distinction is crucial because nitrogen can exist in many different chemical configurations, and 'nitric' often points to a highly reactive or acidic form of nitrogen-containing compound. The most prominent and widely recognized compound associated with this term is nitric acid (HNO₃), a powerful and highly corrosive mineral acid.

DEFINITION
The word 'nitric' is an adjective used to describe substances or compounds that contain nitrogen, especially in a particular form or oxidation state. It is most commonly associated with nitric acid, a powerful and corrosive acid.

When people use 'nitric,' they are typically referring to chemical compounds that incorporate nitrogen in a way that contributes to their distinctive properties. For example, a chemist might talk about 'nitric oxides' (NOx), which are a group of gases containing nitrogen and oxygen, many of which are significant air pollutants. Another common usage is in the context of industrial processes, where nitric acid is used for various applications, such as the production of fertilizers, explosives, and in metallurgy for etching or cleaning metals.

The laboratory experiment required a precise amount of nitric acid for the reaction to occur.

Beyond the specific mention of nitric acid, the term 'nitric' can also appear in more general chemical nomenclature. For instance, you might encounter references to 'nitric salts,' which are compounds formed when nitric acid reacts with a base. These salts often contain the nitrate ion (NO₃⁻). The key takeaway is that whenever 'nitric' is used, it signals the presence of nitrogen in a context where its chemical properties, particularly its oxidizing or acidic nature, are relevant.

The use of 'nitric' is almost exclusively in scientific and technical discussions, primarily in chemistry. It's not a word you would typically hear in everyday conversation unless the topic specifically delves into chemical substances or processes. This makes it a specialized term, but one that is fundamental to understanding a wide range of chemical reactions and industrial applications. Its CEFR B1 level suggests that while it might not be a common word for general conversation, it's a term that someone with an intermediate grasp of English, particularly in an academic or scientific context, might encounter and need to understand.

Consider the broader impact of 'nitric' compounds. Nitric acid is indispensable in various industries. For example, it's a key component in the production of ammonium nitrate, a common fertilizer vital for agriculture. It's also used in the manufacturing of explosives like nitroglycerin and trinitrotoluene (TNT). In the realm of metallurgy, dilute nitric acid can be used to passivate stainless steel, enhancing its corrosion resistance. These diverse applications highlight why the term 'nitric' is so important in technical language.

The manufacturing plant uses large quantities of nitric compounds in its fertilizer production.

In summary, 'nitric' is an adjective that clearly denotes the presence of nitrogen within a chemical compound, often implying a specific, usually reactive or acidic, form of nitrogen. Its usage is concentrated in scientific, industrial, and academic contexts, making it a specialized but essential term for anyone engaging with chemistry or related fields. When you encounter 'nitric,' think nitrogen, and consider the potential for acidity, oxidation, or other chemical reactivity associated with that element.

  • It is almost always used in a chemical context.

  • It frequently precedes 'acid,' forming 'nitric acid.'

  • It can also describe other nitrogen-containing substances like 'nitric oxides' or 'nitric salts.'

  • The term signals that nitrogen is present in a specific, often reactive, chemical form.

§ Common Mistakes with 'Nitric'

While 'nitric' might seem straightforward, there are several common pitfalls that learners, especially at the B1 CEFR level, often encounter. Understanding these mistakes can help you use the word more accurately and confidently.

§ 1. Confusing 'Nitric' with 'Nitrous' or 'Nitrogenous'

One of the most frequent errors is mixing up 'nitric' with similar-sounding words like 'nitrous' or 'nitrogenous'. While all three relate to nitrogen, their specific meanings and applications differ significantly.
DEFINITION
'Nitric' specifically refers to compounds containing nitrogen in a higher oxidation state, most notably nitric acid (HNO₃).
DEFINITION
'Nitrous' refers to compounds with nitrogen in a lower oxidation state, such as nitrous oxide (N₂O), also known as laughing gas.
DEFINITION
'Nitrogenous' is a broader term meaning 'containing nitrogen' or 'derived from nitrogen', often used in biological contexts for substances like proteins or fertilizers.

Incorrect: "He inhaled nitric gas for anesthesia."

Correct: "He inhaled nitrous oxide for anesthesia."

§ 2. Using 'Nitric' as a Noun

As an adjective, 'nitric' must always modify a noun. A common mistake is to use it as a standalone noun, which is incorrect in standard English.

Incorrect: "Be careful with the nitric."

Correct: "Be careful with the nitric acid."

Correct: "The chemist was working with a nitric compound."

§ 3. Overusing 'Nitric' When a Simpler Term Suffices

Sometimes, learners might use 'nitric' when a more general or simpler term would be more appropriate, particularly outside of scientific or chemical contexts.

Incorrect: "The plants need more nitric nutrients to grow."

Correct: "The plants need more nitrogenous nutrients to grow."

Correct: "The plants need more nitrogen for growth."

§ 4. Misunderstanding the Intensity or Danger Implied by 'Nitric'

Because 'nitric' is strongly associated with nitric acid, people sometimes mistakenly attribute its corrosive or dangerous properties to any substance described as 'nitric', even when it's not nitric acid itself.

Incorrect: "The air pollution contained many nitric chemicals that corroded the buildings." (While some nitric compounds can be corrosive, it's not a universal property of all 'nitric' substances, and often other factors are at play.)

Correct: "The air pollution contained many nitrogen oxides that contributed to the corrosion of the buildings."

§ 5. Misspelling 'Nitric'

A simple but common mistake is misspelling the word. Variations like 'nitrick' or 'nitirc' can occur.

  • Always remember the 'c' at the end: n-i-t-r-i-c.

  • Practice writing it down a few times if you find yourself making this error.

§ Summary of Key Takeaways

To avoid these common mistakes:

  • Distinguish 'nitric' from 'nitrous' and 'nitrogenous' based on the specific oxidation state or general presence of nitrogen.

  • Always use 'nitric' as an adjective modifying a noun.

  • Use 'nitric' specifically for compounds like nitric acid or related chemical structures, not as a general term for anything containing nitrogen.

  • Understand that the danger or intensity is typically associated with the full chemical name (e.g., nitric acid), not just the adjective 'nitric' in isolation.

  • Spell 'nitric' correctly: n-i-t-r-i-c.

By paying attention to these nuances, you can use 'nitric' more precisely and effectively in your English communication.

Exemplos por nível

1

Nitric oxide plays a crucial role in regulating blood pressure.

Tlenek azotu odgrywa kluczową rolę w regulacji ciśnienia krwi.

Here, 'nitric' modifies 'oxide', indicating a compound of nitrogen and oxygen.

2

The industrial process requires a careful balance of nitric and sulfuric acids.

Proces przemysłowy wymaga starannej równowagi kwasów azotowego i siarkowego.

'Nitric acids' refers to acids containing nitrogen.

3

Exposure to nitric fumes can be harmful to respiratory health.

Narażenie na opary azotowe może być szkodliwe dla zdrowia układu oddechowego.

'Nitric fumes' describes fumes containing nitrogen compounds.

4

Scientists are studying the effects of nitric acid on metal corrosion.

Naukowcy badają wpływ kwasu azotowego na korozję metali.

A common use of 'nitric' in 'nitric acid'.

5

The soil sample showed high levels of nitric compounds, indicating agricultural runoff.

Próbka gleby wykazała wysoki poziom związków azotowych, wskazujących na spływ rolniczy.

'Nitric compounds' refers to compounds containing nitrogen.

6

The experiment involved mixing several solutions, one of which was a dilute nitric solution.

Eksperyment polegał na zmieszaniu kilku roztworów, z których jeden był rozcieńczonym roztworem azotowym.

'Nitric solution' refers to a solution containing nitric acid or other nitric compounds.

7

Special protective gear is needed when handling concentrated nitric acid.

Podczas obchodzenia się ze stężonym kwasem azotowym potrzebny jest specjalny sprzęt ochronny.

Another instance of 'nitric acid', emphasizing its dangerous nature.

8

The chemical reaction produced a byproduct with a distinct nitric odor.

Reakcja chemiczna wytworzyła produkt uboczny o wyraźnym zapachu azotowym.

'Nitric odor' describes an odor characteristic of nitric compounds.

Perguntas frequentes

10 perguntas

The word 'nitric' is an adjective that describes substances or compounds containing nitrogen, especially in a specific form or oxidation state. It's often associated with nitric acid.

While 'nitric' is a scientific term, its most common usage is in the phrase 'nitric acid', which you might encounter in chemistry or discussions about industrial processes.

Certainly! You would say 'nitric acid' to refer to a specific type of acid that contains nitrogen. For instance, 'Nitric acid is a very strong acid used in many industries.'

Nitric acid is a powerful and corrosive acid that contains nitrogen. It's used in various applications, including the production of fertilizers, explosives, and in metallurgy.

Yes, absolutely! The word 'nitric' is directly derived from 'nitrogen' and indicates the presence of nitrogen within a compound or substance.

Yes, there are other compounds that are described as 'nitric'. For example, you might hear of 'nitric oxide,' which is a gas that plays a role in various biological processes.

You pronounce 'nitric' as NY-trik. The emphasis is on the first syllable.

The word 'nitric' comes from the Latin word 'nitrum,' which referred to sodium carbonate or saltpeter, both of which contain nitrogen.

The word 'nitric' itself doesn't carry a positive or negative connotation. It's a descriptive scientific term. However, nitric acid is known for being corrosive, which could be seen as negative in certain contexts.

You would most likely encounter 'nitric' in fields such as chemistry, biology, environmental science, and industrial engineering, particularly when discussing chemical compounds or processes involving nitrogen.

Teste-se 60 perguntas

listening A1

Listen for 'nitric'.

Correto! Quase. Resposta certa: Nitric acid is very strong.
Correto! Quase. Resposta certa:
listening A1

Listen for 'nitric'.

Correto! Quase. Resposta certa: The scientist works with nitric compounds.
Correto! Quase. Resposta certa:
listening A1

Listen for 'nitric'.

Correto! Quase. Resposta certa: Nitric oxide is a gas.
Correto! Quase. Resposta certa:
speaking A1

Read this aloud:

Nitric acid is dangerous.

Focus: Nitric

Correto! Quase. Resposta certa:
speaking A1

Read this aloud:

This is a nitric compound.

Focus: nitric compound

Correto! Quase. Resposta certa:
speaking A1

Read this aloud:

I see nitric oxide.

Focus: nitric oxide

Correto! Quase. Resposta certa:
multiple choice A2

Which of these is most likely to contain something 'nitric'?

Correto! Quase. Resposta certa: A type of powerful acid

Nitric is often associated with nitric acid, which is a powerful acid.

multiple choice A2

If something is described as 'nitric', what element does it usually contain?

Correto! Quase. Resposta certa: Nitrogen

The word 'nitric' is used for substances that contain nitrogen.

multiple choice A2

Which word best describes nitric acid?

Correto! Quase. Resposta certa: Corrosive

Nitric acid is known for being a powerful and corrosive acid.

true false A2

Nitric acid is a type of fruit juice.

Correto! Quase. Resposta certa: Falso

Nitric acid is a powerful acid, not a fruit juice.

true false A2

The word 'nitric' is related to the element nitrogen.

Correto! Quase. Resposta certa: Verdadeiro

Yes, 'nitric' describes substances containing nitrogen.

true false A2

Something 'nitric' is usually very safe to touch with bare hands.

Correto! Quase. Resposta certa: Falso

No, nitric acid is corrosive and not safe to touch with bare hands.

writing A2

Imagine you are in a science class. Your teacher asks you to describe something that has nitrogen in it. Write two sentences about what you would say. You can use simple words.

Well written! Good try! Check the sample answer below.

Sample answer

Nitrogen is a gas. It is in the air we breathe.

Correto! Quase. Resposta certa:
writing A2

Think about something that helps plants grow. Many fertilizers contain nitrogen. Write two simple sentences about nitrogen and plants.

Well written! Good try! Check the sample answer below.

Sample answer

Nitrogen helps plants. Plants need nitrogen to grow well.

Correto! Quase. Resposta certa:
writing A2

You learned that 'nitric' is related to nitrogen. Write a simple sentence explaining what nitric acid is, using easy words.

Well written! Good try! Check the sample answer below.

Sample answer

Nitric acid is a strong chemical. It has nitrogen in it.

Correto! Quase. Resposta certa:
reading A2

What do plants need to grow?

Read this passage:

Nitrogen is a very important gas. It is all around us in the air. Plants need nitrogen to grow big and strong. Some special kinds of acid have nitrogen in them, like nitric acid.

What do plants need to grow?

Correto! Quase. Resposta certa: Nitrogen

The passage states: 'Plants need nitrogen to grow big and strong.'

Correto! Quase. Resposta certa: Nitrogen

The passage states: 'Plants need nitrogen to grow big and strong.'

reading A2

Where can we find nitrogen?

Read this passage:

Nitrogen is a very important gas. It is all around us in the air. Plants need nitrogen to grow big and strong. Some special kinds of acid have nitrogen in them, like nitric acid.

Where can we find nitrogen?

Correto! Quase. Resposta certa: In the air

The passage says: 'It is all around us in the air.'

Correto! Quase. Resposta certa: In the air

The passage says: 'It is all around us in the air.'

reading A2

What kind of acid is mentioned as having nitrogen?

Read this passage:

Nitrogen is a very important gas. It is all around us in the air. Plants need nitrogen to grow big and strong. Some special kinds of acid have nitrogen in them, like nitric acid.

What kind of acid is mentioned as having nitrogen?

Correto! Quase. Resposta certa: Nitric acid

The passage mentions: 'Some special kinds of acid have nitrogen in them, like nitric acid.'

Correto! Quase. Resposta certa: Nitric acid

The passage mentions: 'Some special kinds of acid have nitrogen in them, like nitric acid.'

multiple choice B1

Which of these substances is often described as 'nitric' due to its nitrogen content?

Correto! Quase. Resposta certa: Nitric acid

Nitric acid is the most common compound associated with the adjective 'nitric' because it contains nitrogen.

multiple choice B1

A chemist is studying a compound that contains nitrogen. They might refer to it as a _______ compound.

Correto! Quase. Resposta certa: Nitric

The word 'nitric' is used to describe substances containing nitrogen.

multiple choice B1

Which of these is a characteristic of nitric acid?

Correto! Quase. Resposta certa: It is a powerful and corrosive acid.

The definition states that nitric acid is a powerful and corrosive acid.

true false B1

The word 'nitric' is an adjective.

Correto! Quase. Resposta certa: Verdadeiro

The definition explicitly states that 'nitric' is an adjective.

true false B1

Substances described as 'nitric' do not contain nitrogen.

Correto! Quase. Resposta certa: Falso

The definition clearly states that 'nitric' describes substances that contain nitrogen.

true false B1

Nitric acid is a weak and harmless substance.

Correto! Quase. Resposta certa: Falso

The definition describes nitric acid as a 'powerful and corrosive acid', which means it is not harmless.

listening B1

Listen for the type of acid.

Correto! Quase. Resposta certa: The chemist carefully handled the nitric acid.
Correto! Quase. Resposta certa:
listening B1

What kind of compounds are mentioned?

Correto! Quase. Resposta certa: Many compounds containing nitrogen are referred to as nitric compounds.
Correto! Quase. Resposta certa:
listening B1

What specific nitric compound is mentioned?

Correto! Quase. Resposta certa: He explained that nitric oxide plays a role in various biological processes.
Correto! Quase. Resposta certa:
speaking B1

Read this aloud:

Nitric acid is a very strong and corrosive substance.

Focus: nitric, corrosive

Correto! Quase. Resposta certa:
speaking B1

Read this aloud:

The label clearly stated that the solution contained nitric compounds.

Focus: clearly, contained, compounds

Correto! Quase. Resposta certa:
speaking B1

Read this aloud:

We learned about the properties of nitric fertilizers in science class.

Focus: properties, fertilizers

Correto! Quase. Resposta certa:
sentence order B1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: Nitric acid is a strong chemical

This sentence describes nitric acid as a strong chemical, with 'nitric' acting as an adjective.

sentence order B1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: Some nitric compounds contain nitrogen

'Nitric compounds' refers to substances containing nitrogen, and the sentence states they contain nitrogen.

sentence order B1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: Nitric acid must be handled with caution

This sentence warns about the careful handling required for nitric acid.

listening C1

Focus on the precautions taken with nitric compounds in industry.

Correto! Quase. Resposta certa: The industrial process often involves handling nitric compounds with extreme caution due to their corrosive nature.
Correto! Quase. Resposta certa:
listening C1

Listen for the efforts made in managing nitric acid.

Correto! Quase. Resposta certa: Scientists are exploring new ways to safely store and transport nitric acid for various chemical applications.
Correto! Quase. Resposta certa:
listening C1

Consider the biological significance of nitric oxide.

Correto! Quase. Resposta certa: Nitric oxide plays a crucial role in biological systems, acting as a signaling molecule in the body.
Correto! Quase. Resposta certa:
speaking C1

Read this aloud:

Can you elaborate on the potential environmental impact of improperly disposed nitric waste?

Focus: elaborate, environmental, improperly, disposed, nitric, waste

Correto! Quase. Resposta certa:
speaking C1

Read this aloud:

Discuss the safety protocols that should be implemented when working with concentrated nitric solutions in a laboratory setting.

Focus: discuss, safety, protocols, implemented, concentrated, nitric, solutions, laboratory, setting

Correto! Quase. Resposta certa:
speaking C1

Read this aloud:

Explain the difference between nitric acid and nitrous acid, highlighting their chemical formulas and common uses.

Focus: explain, difference, nitric, acid, nitrous, acid, highlighting, chemical, formulas, common, uses

Correto! Quase. Resposta certa:
sentence order C1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: Nitric acid is a highly corrosive compound used in various industrial processes.

This sentence describes nitric acid and its uses, with a clear subject, verb, and objects.

sentence order C1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: The emission of nitric oxides into the atmosphere contributes to acid rain.

This sentence discusses the environmental impact of nitric oxides, forming a coherent statement about cause and effect.

sentence order C1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: Scientists are investigating the role of nitric oxide in regulating blood pressure.

This sentence describes ongoing scientific research into the physiological function of nitric oxide.

multiple choice C2

Which of the following compounds is known for its strong oxidizing properties and is often described using the adjective 'nitric'?

Correto! Quase. Resposta certa: B) Nitric acid

Nitric acid (HNO₃) is a powerful and corrosive acid with strong oxidizing properties. The adjective 'nitric' is most commonly associated with it.

multiple choice C2

In a laboratory setting, a chemist refers to a 'nitric compound.' This most likely implies the compound contains which element in a specific oxidation state?

Correto! Quase. Resposta certa: C) Nitrogen

The adjective 'nitric' is used to describe substances or compounds that contain nitrogen, especially in a particular form or oxidation state.

multiple choice C2

When discussing the industrial production of fertilizers, which 'nitric' substance is a key precursor?

Correto! Quase. Resposta certa: B) Nitric acid

Nitric acid is a crucial component in the production of various fertilizers, including ammonium nitrate, due to its nitrogen content and reactivity.

true false C2

The term 'nitric' universally applies to any compound containing nitrogen, regardless of its chemical structure or oxidation state.

Correto! Quase. Resposta certa: Falso

While 'nitric' describes compounds containing nitrogen, it often refers to a specific form or oxidation state, most notably associated with nitric acid, not every nitrogen-containing compound.

true false C2

A substance described as 'nitric' can be highly corrosive and dangerous to handle without proper precautions.

Correto! Quase. Resposta certa: Verdadeiro

The word 'nitric' is most commonly associated with nitric acid, which is a powerful and corrosive acid, thus necessitating careful handling.

true false C2

In organic chemistry, 'nitric' exclusively refers to functional groups where nitrogen is bonded directly to a carbon atom within an aromatic ring.

Correto! Quase. Resposta certa: Falso

The term 'nitric' is broader and not exclusively limited to nitrogen bonded to carbon in aromatic rings; it primarily refers to nitrogen-containing substances, particularly in specific oxidation states or forms, like nitric acid.

sentence order C2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: Nitric acid, is a powerful oxidizing agent.

This sentence describes nitric acid's property as an oxidizing agent.

sentence order C2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: Nitric compounds play a crucial role in various industrial processes.

This sentence highlights the significance of nitric compounds in industry.

sentence order C2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: The corrosive nature of nitric acid necessitates careful handling.

This sentence emphasizes the need for caution when dealing with nitric acid.

/ 60 correct

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