HARD
11th ICSE
IMPORTANT
Earn 100

Why are group 1 elements called alkali metals?

Important Questions on The s-Block Elements

HARD
11th ICSE
IMPORTANT
Write equations for thermal decomposition of NH42BeF4  .
HARD
11th ICSE
IMPORTANT

Which of the following has highest solubility and why?

BaSO4, MgSO4, CaSO4

HARD
11th ICSE
IMPORTANT

Describe two important uses of the following: Caustic soda or sodium hydroxide.

HARD
11th ICSE
IMPORTANT

Describe two important uses of sodium carbonate.

HARD
11th ICSE
IMPORTANT

Describe two important uses of quick lime or calcium oxide.

HARD
11th ICSE
IMPORTANT

What is cement? Give the chemistry involved during manufacturing of cement?

HARD
11th ICSE
IMPORTANT

Answer the following

What is hydrolith?

HARD
11th ICSE
IMPORTANT

Answer the following

Which elements of alkaline earth metals family do not give characteristic flame colouration?