HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Important Questions

In phenol carbon atom attached to -OH group undergoes -

1. SP³ hybridisation          
2. SP hybridisation
3. SP² hybridisation
4. No hybridisation

How is carbolic acid prepared from the given compounds :

Aniline

Mention ‘two’ physical properties of carbolic acid.

Write chemical test to distinguish between carbolic acid and alcohol.

Draw the structure of aspirin.

What is the action of the following reagents on phenol - Bromine in CS₂ at low temperature.

Write the molecular and structural formula of BHA and BHT.

Define carbolic acid.

When phenol is heated with conc. HNO₃ in presence of conc. H₂SO₄ it yields _______.

(A) o-nitrophenol

(B) p-nitrophenol

(C) 2,4,6-trinitrophenol

(D) m-nitrophenol

Write 'two' uses of phenol.

What happens when glucose is treated with Bromine water

What happens when glucose is treated with - Dilute nitric acid

What is the action of the following reagents on phenol - H₂SO₄ at room temperature.

How is carbolic acid prepared from the given compounds :

Chlorobenzene and steam at 698K?

Write the main constituents of dettol.

Write balanced chemical equation for the following :
Action of zinc dust on phenol.

Write a preparation of phenol from cumene? What happens when phenol is heated with zinc dust? 

Isopropylbenzene on air oxidation followed by decomposition by dilute acid gives ______.

Write preparation of phenol from aniline.

Write Dow process for the preparation of Phenol.