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Assertion (A): Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid.
Reason (R): Carbon dioxide is given off in the reaction.
  • 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.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Assertion (A): Gas bubbles are observed when sodium carbonate is adde...
Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid as CO2 gas is released.
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Assertion (A): Gas bubbles are observed when sodium carbonate is adde...
Explanation of Assertion (A) and Reason (R)
The question revolves around a chemical reaction between sodium carbonate and dilute hydrochloric acid, and the resulting observations.
Assertion (A): Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid.
- This statement is true. When sodium carbonate (Na2CO3) is mixed with dilute hydrochloric acid (HCl), a chemical reaction occurs, producing carbon dioxide (CO2) gas. This gas is observable as bubbles during the reaction.
Reason (R): Carbon dioxide is given off in the reaction.
- This statement is also true. The chemical reaction can be represented as follows:
Na2CO3 + 2 HCl → 2 NaCl + H2O + CO2↑
- The upward arrow indicates the release of carbon dioxide gas, which is the reason for the bubbles observed.
Relationship Between Assertion and Reason
- The reason provided (R) directly explains why the assertion (A) is true. The gas bubbles seen are a direct result of the carbon dioxide being released during the reaction.
Conclusion
- Therefore, both Assertion (A) and Reason (R) are true, and the reason correctly explains the assertion.
Thus, the correct answer is option 'A': Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
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Community Answer
Assertion (A): Gas bubbles are observed when sodium carbonate is adde...
I think option A is correct!
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Assertion (A): Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid.Reason (R): Carbon dioxide is given off in the reaction.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.Correct answer is option 'A'. Can you explain this answer?
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Assertion (A): Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid.Reason (R): Carbon dioxide is given off in the reaction.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.Correct answer is option 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Assertion (A): Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid.Reason (R): Carbon dioxide is given off in the reaction.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.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid.Reason (R): Carbon dioxide is given off in the reaction.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.Correct answer is option 'A'. Can you explain this answer?.
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