Match the following columns.

A→p,s;B→p,q;C→q;D→q,rFor cubic system all the sides and angles are equal. Cubic, rhombohedral, tetragonal, hexagonal and monoclinic are the types of crystal system. For hexagonal and monoclinic system only two crystallographic angles are of 90o. i.e. α=β=90∘ or α=γ=90∘.