A metal M readily forms its sulphate MSO4 which is water-soluble. It forms its oxide MO which becomes inert on heating. It forms an insoluble hydroxide M(OH)2 which is soluble in NaOH solution. Then M is
One mole of magnesium nitride on the reaction with an excess of water gives
KO2 (potassium super oxide) is used in oxygen cylinders in space and submarines because it
Several blocks of magnesium are fixed to the bottom of a ship to
The solubilities of carbonates decrease down the magnesium group due to a decrease in
The substance not likely to contain CaCO3 is
Based on lattice energy and other consider cations which one of the following alkali metal chlorides is expected to have the highest melting point?
The ionic mobility of alkali metal ions in aqueous solution is maximum for
Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?