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Assertion (A): CrO3 reacts with HCl to give chromyl chloride gas. Reason (R): Chromyl chloride, CrO2Cl2, has a tetrahedral shape. Choose the correct option:

1. Both (A) and (R) are true and (R) is the correct explanation of (A)
2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
3. (A) is true but (R) is false
4. (A) is false but (R) is true

Correct answer: Both (A) and (R) are true but (R) is not the correct explanation of (A)

Solution

Both statements are individually correct: CrO3 with HCl can give CrO2Cl2, and CrO2Cl2 is tetrahedral; however the tetrahedral shape is not the cause of the reaction.

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