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Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.
Reason : Acids react with active metals to produce hydrogen gas.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
- e)Both Assertion and Reason are false.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas....
Explanation:
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Sodium hydroxide being a strong base, reacts with active metal (zinc) to produce H2 gas. The reaction is given as follows:
Zn (s) + 2NaOH (aq) → Na2ZmO2 (aq)+ H2 (g)
Thus both assertion and reason are true, but reason is not the correct explanation of the assertion.
You can know basics about Acids and Bases through the document:
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Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas....
Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.
Reason: Acids react with active metals to produce hydrogen gas.
Explanation:
The assertion states that sodium hydroxide reacts with zinc to produce hydrogen gas. This is true because sodium hydroxide is a strong base and zinc is an active metal. When these two substances react, they undergo a displacement reaction known as a single displacement or redox reaction.
During this reaction, the zinc displaces hydrogen from sodium hydroxide, resulting in the formation of zinc hydroxide and hydrogen gas. The chemical equation for this reaction is as follows:
2NaOH + Zn → Zn(OH)2 + H2
The reason provided states that acids react with active metals to produce hydrogen gas. This is also true. Active metals, such as zinc, aluminum, and iron, have the ability to displace hydrogen from acids, resulting in the formation of hydrogen gas. This is because active metals are more reactive than hydrogen.
When an acid, such as hydrochloric acid (HCl), sulfuric acid (H2SO4), or nitric acid (HNO3), reacts with an active metal, the metal displaces hydrogen from the acid, leading to the formation of a salt and hydrogen gas. The general equation for this type of reaction is:
2HCl + Zn → ZnCl2 + H2
Therefore, both the assertion and the reason are true. The reason provides the correct explanation for the assertion. The reaction between sodium hydroxide and zinc is an example of an acid-base reaction, where the base (sodium hydroxide) reacts with an active metal (zinc) to produce hydrogen gas.
Reason: Acids react with active metals to produce hydrogen gas.
Explanation:
The assertion states that sodium hydroxide reacts with zinc to produce hydrogen gas. This is true because sodium hydroxide is a strong base and zinc is an active metal. When these two substances react, they undergo a displacement reaction known as a single displacement or redox reaction.
During this reaction, the zinc displaces hydrogen from sodium hydroxide, resulting in the formation of zinc hydroxide and hydrogen gas. The chemical equation for this reaction is as follows:
2NaOH + Zn → Zn(OH)2 + H2
The reason provided states that acids react with active metals to produce hydrogen gas. This is also true. Active metals, such as zinc, aluminum, and iron, have the ability to displace hydrogen from acids, resulting in the formation of hydrogen gas. This is because active metals are more reactive than hydrogen.
When an acid, such as hydrochloric acid (HCl), sulfuric acid (H2SO4), or nitric acid (HNO3), reacts with an active metal, the metal displaces hydrogen from the acid, leading to the formation of a salt and hydrogen gas. The general equation for this type of reaction is:
2HCl + Zn → ZnCl2 + H2
Therefore, both the assertion and the reason are true. The reason provides the correct explanation for the assertion. The reaction between sodium hydroxide and zinc is an example of an acid-base reaction, where the base (sodium hydroxide) reacts with an active metal (zinc) to produce hydrogen gas.
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Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.Reason : Acids react with active metals to produce hydrogen gas.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.Reason : Acids react with active metals to produce hydrogen gas.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.Reason : Acids react with active metals to produce hydrogen gas.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer?.
Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.Reason : Acids react with active metals to produce hydrogen gas.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.Reason : Acids react with active metals to produce hydrogen gas.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.Reason : Acids react with active metals to produce hydrogen gas.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.Reason : Acids react with active metals to produce hydrogen gas.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
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ample number of questions to practice Assertion: Sodium hydroxide reacts with zinc to produce hydrogen gas.Reason : Acids react with active metals to produce hydrogen gas.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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