EASY
11th Assam Board
IMPORTANT
Earn 100

How is excessive content of CO2 responsible for global warming?

Important Questions on The p-Block Elements

MEDIUM
11th Assam Board
IMPORTANT

Explain the structures of diborane and boric acid.

EASY
11th Assam Board
IMPORTANT
What happens when borax is heated strongly?
 
EASY
11th Assam Board
IMPORTANT
What happens when boric acid is added to water?
EASY
11th Assam Board
IMPORTANT
What happens when aluminium is treated with dilute NaOH?
EASY
11th Assam Board
IMPORTANT
What happens when BF3 is reacted with ammonia?
MEDIUM
11th Assam Board
IMPORTANT

Explain the following reaction:
Silicon is heated with methyl chloride at high temperature in the presence of copper.
 

HARD
11th Assam Board
IMPORTANT

Explain the following reaction when silicon dioxide is treated with hydrogen fluoride.

EASY
11th Assam Board
IMPORTANT
Explain the following reaction when CO is heated with ZnO.