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Assertion:In formaldehyde, all the four ...

Assertion:In formaldehyde, all the four atoms are in the same plane
Reason:The carbon atom in formaldehyde is `sp^3` hybridized

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

C

Assertion is true but Reason is false

D

Assertion is false but Reason is true

Text Solution

Verified by Experts

The correct Answer is:
C
Since HCHO contains double bond

Meaning one sigma bond and one `pi`-bond . Therefore, the hybridization of carbon here is `sp^2` . Hence, reason is incorrect.
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Knowledge Check

  • Assertion : In formaldehyde all the four atoms lie in one plane. Reason : Carbonyl carbon forms a pi -bond with oxygen by overlapping of p -orbitals.

    A
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    B
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    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

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    B
    If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.
    C
    If Assertion is CORRECT but Reason is INCORRECT.
    D
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  • Assertion: Alkanes containing more than three carbon atoms exhibit chain isomerism. Reason: In an alkane, all carbon atoms are sp^(3) hybridised.

    A
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    B
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    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

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