MEDIUM
11th Odisha Board
IMPORTANT
Earn 100

Explain why the alkali metals have low densities, are electrically conducting, good reducing agents, form monovalent ions, soluble salts and soluble hydroxides, which become stronger alkalis on descending the group.

Important Questions on s-Block Elements:Alkali and Alkaline Earth Metals. Alkali Metals:(Group 1)

MEDIUM
11th Odisha Board
IMPORTANT

Why are potassium and caesium, rather than lithium, used in photoelectric cells?

MEDIUM
11th Odisha Board
IMPORTANT

Describe two methods for the preparation of potassium cyanide. What are its uses?

EASY
11th Odisha Board
IMPORTANT

Explain the following: Sodium metal cannot be obtained by the electrolysis of aqueous sodium chloride solution.

EASY
11th Odisha Board
IMPORTANT

Explain the following: The ionization energy decreases from lithium to caesium.

EASY
11th Odisha Board
IMPORTANT

Explain the following: Alkali metals are difficult to reduce.

EASY
11th Odisha Board
IMPORTANT

Explain the following: The elements of Group I-A are called alkali metals.