Question

Order of increasing melting points among H₂O_(s), C_(s), CS₂ and Sn is ____________.

Options

• Sn < C < H₂O < CS₂

• CS₂ < H₂O < Sn < C

• CS₂ < C < H₂O < Sn

• C < H₂O < CS₂ < Sn

Answer 1

Order of increasing melting points among H₂O_(s), C_(s), CS₂ and Sn is CS₂ < H₂O < Sn < C.

Explanation:

Because of its network structure, C_(s) has the greatest melting point, followed by Sn, which possesses metallic contacts. Because H bonding occurs in H₂O, CS₂ has a lower melting point than ice H₂O_(s).