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Assertion (A): Sodium and potassium are reactive elements. Reason (R): Sodium and potassium occur in free states.

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Question

Assertion (A): Sodium and potassium are reactive elements.

Reason (R): Sodium and potassium occur in free states.

Options

  • Both A and R are true and R is the correct explanation of A.

  • Both A and R are true but R is not the correct explanation of A.

  • A is true but R is false.

  • A is false but R is true.

MCQ
Assertion and Reasoning
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Solution

A is true but R is false.

Explanation:

Sodium and potassium are highly reactive, so they do not occur free in nature; they are found in combined state. Hence the assertion is true but the reason is false.

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Chapter 7: Metallurgy - MISCELLANEOUS EXERCISE [Page 147]

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S.P. Singh Concise Chemistry [English] Class 10 ICSE
Chapter 7 Metallurgy
MISCELLANEOUS EXERCISE | Q (A) 11. | Page 147
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