Thermal decomposition of lithium nitrate gives:

Which of the following does not form double salts?

Which of the following statements is correct?

$(a)$ Describe the chemical properties of alkali metals with air,water,dihydrogen,and halogens.
$(b)$ Explain the reduction potential of alkali metal elements.
$(c)$ Which type of solutions are formed on the reaction of alkali metals with liquid ammonia?

Why are alkali metals highly reactive?

$Mg$ forms $Mg^{2+}$ but not $Mg^+$. The reason is ...