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Assertion : Chair conformation of cycloh...

Assertion : Chair conformation of cyclohexane is more stable than boat conformation.
Reason : In boat form, many hydrogen atoms on adjacent carbon atoms have eclipsed conformation.

A

If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.

C

If Assertion is correct , but Reason is incorrect.

D

If both Assertion and Reason are incorrect .

Text Solution

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The correct Answer is:
A
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Between the two conformational isomers of cyclohexane, ie, cháir and boat forms, which one is more stable?

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Knowledge Check

  • Statement 1 : Chair conformation of cyclohexane is more stable than boat conformation. Statement 2 : In boat form, many hydrogen atoms on adjacent carbon atoms have eclipsed conformation.

    A
    Statement 1 is True, statement 2 is True, Statement 2 is Correct explanation for Statement 1.
    B
    Statement 1 is True, Statement 2 is True, Statement 2 is NOT a correct explanation for Statement 1.
    C
    Statement 1 is True, Statement 2 is False.
    D
    Statement 1 is False, Statement 2 is True.

  • In the following question, an Assertion (A) is followed by a corresponding Reason (R). Use the following keys to choose the appropriate answer. Assertion : In the formation of water molecule, both hydrogen and oxygen atoms attain octet of electrons. Reason : Oxygen atom forms two ionic or electrovalent bonds with two hydrogen atoms.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of (A).
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
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    D
    If both (A) and (R) are incorrect.

  • Assertion : C-H bond in ethyne is shorter than C-H bonds in ethene. Reason : Carbon atom in ethene is sp hybridised while it is sp^3 in ethyne.

    A
    If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
    B
    If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
    C
    If Assertion is correct , but Reason is incorrect.
    D
    If both Assertion and Reason are incorrect .

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