Multiple Choice QuestionsAssertion : Cyclohexanone exhibits keto-enol tautomerism.
Reason : In cyclohexanone, one form contains the keto group (>C=O) while other contains enolic group (- C=C- OH).
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
A compound A ➔ C5H10Cl2 on hydrolysis gives C5H10O which reacts with NH2OH forms iodoform , but does not give Fehling test A is :
In photography , sodium thiosulphate is used as :
complexing agent
oxidising agent
reducing agent
none of these
Assertion : Benzaldehyde is more reactive than ethanal towards nucleophilic attack.
Reason : The overall effect of -I and +R effect of phenyl group decreases the electron density on the carbon of C=O atom group in benzaldehyde.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion : Acetamide has more polar -CO group than in ethyl acetoacetate.
Reason : H2 is more electron donating than C2H5.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
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