Home
Class 11
CHEMISTRY
Assertion (A) : Light oil is washed with...

Assertion (A) : Light oil is washed with water and treated with NaOH to remove phenol
Reason (R) : Phenol is a basic impurity.

A

Both A and R are true and R is correct explanation of A

B

Both A and R are true and R is not the correct explanation of A

C

A is true and R is false

D

A is false and R is true

Text Solution

Verified by Experts

The correct Answer is:
C
Phenol is acidic.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion (A) : The equivalent weights of nitric acid and crystalline oxalic acid are same. Reason (R ) : The basicity is same for both the acids.

Assertion (A) : When light refracts, if changes the direction (when angle of incidence is not 0^@ )Reason (R ) : Light, when it changes its medium in changes it speed.

Assertion (A): A mixture of ammonia and hydrogen peroxide can bleach the human hair to golden colour. Reason (R): Ammonia solution is basic in nature

Assertion (A) : Scouring is the process of washing sheared fleece in hot water, detergent and alkali in tank Reason (R) : Scouring removes dirt, grass and grease

Assertion (A) : Micelles present in water will attracts each other. Reason (R) : Micelles exhibits ion – ion attraction in water.

Assertion (A) : Onion vanilla essence can be used as olfactory indicators. Reason (R) : some substances change their odour in acidic or basic media.

Assertion (A): some abiotic factors like air, water, light and heat are very important for growth are plants. Reason (R): some of the above abiotic factors are important for all living organisms

Phenol is treated with C Cl_(4) in presence of NaOH. What happens ?

Assertion (A) : Level of ground water below the surface of Earth at a given place Is known as water table.Reason (R) Excess use of ground water in cities is resulting in lowering.of water table.