a. Name the alkali metals which form superoxides on heating in excess of air.
b. Name the alkali metal which floats on water without any apparent reaction with it.
c. Name the main factor which is responsible for the anomalous behaviour of lithium.
d. What is the general name for element of group 1 ?
e. Give the name of the alkali metal which is radioactive.
f. Name the alkali metal which shows diagonal relationship with magnesium.
g. Name teh alkali metal which acts as the strongest reducing agent in aqueous solution.

Explanation

a. K, Rb and Cs , b. Lithium
c. Similarity in charge/radius ration
d. Alkali metals , e. Francium
f. Lithium , g. Lithium