Home
Class 12
CHEMISTRY
Assertion(A): Alcohols are dehydrated to...

Assertion(A): Alcohols are dehydrated to hydrocarbons in the pressure of acidie zeolites.
Reason(R): Zeolites are porous catalysts.

A

If both assertion and reason are true and reason is the explaination of assertion.

B

If both assertion and reason are true but reason is not the correct explaination of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
Zeolites are shape-selective prous solid acid catalysits,their cataytic activity originates from the presence of highly acidic Al-O(H)-Si hydroxyl in the framework.
Promotional Banner

Similar Questions

Explore conceptually related problems

Zeolites are used as catalyst in :

Assertion: Alcohols have higher boiling points than ethers of comparable molecular masses. Reason: Alcohols and ethers are isomerism in nature.

Give reason for the following: Zeolites act as shape selection catalysts.

Assertion (A): Hydrolyiss of ethyl acetate in the presence of acid is a reaction of first order whereas in the presence of alkali, it is a reaction of second order. Reason (R ): Acid acts as catalyst only whereas alkali act as one of the reactant.

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst. Reason (R) A catalyst participating in the reaction froms different activated complex and lowers down the activation energy but the difference in energy of reactant and product remains the same.

Assertion(A): A catalyst speed up a reaction but does not participate in its mechanism. Reason(R): A catalyst provides an alternative path of lower activation energy to the reactants.

Assertion : Alcohols have more boiling point than aldehydes of comparable molecular masses. Reason : Alcohol molecules have strong hydrogen bonding between them.

Assertion: Force can be added to pressure. Reason: Force and pressure have same dimensions.

The activity and selectivity of zeolites as catalyst is based on :-