s-Block Elements · Chemistry · KCET

Which one of the following nitrate will decompose to give $\mathrm{NO}_2$ on heating ?

The property of the alkaline earth metals that increases with their atomic number is

The oxide of potassium that does not exist is

The metal that produce $$\mathrm{H}_2$$ with both dil. $$\mathrm{HCl}$$ and $$\mathrm{NaOH}(a q)$$ is

Which cleansing agent gets precipitated in hard water?