EASY
11th Andhra Pradesh Board
IMPORTANT
Earn 100

Write balanced equation for the reaction between K2O and water.

Important Questions on The s -Block Elements

MEDIUM
11th Andhra Pradesh Board
IMPORTANT
Alkali metals and their salts impart characteristic colours to an oxidizing flame. Explain the reason.
MEDIUM
11th Andhra Pradesh Board
IMPORTANT
What makes caesium and potassium useful as electrodes in photoelectric cells?
HARD
11th Andhra Pradesh Board
IMPORTANT
Write a short note on the reactivity of alkali metals towards air.
MEDIUM
11th Andhra Pradesh Board
IMPORTANT

Give any two uses of lithium metal.

MEDIUM
11th Andhra Pradesh Board
IMPORTANT
Give any two uses of sodium metal.
HARD
11th Andhra Pradesh Board
IMPORTANT
Give an account of the properties of washing soda.
MEDIUM
11th Andhra Pradesh Board
IMPORTANT
Mention some uses of sodium carbonate.
HARD
11th Andhra Pradesh Board
IMPORTANT
How do you obtain pure sodium chloride from a crude sample?