Sulphur reacts with chlorine in 1: 2 ratio and forms X . Hydrolysis of X gives a sulphur compound Y . The hydridisation of central atom in the anion Y is

Step-by-step solution

When sulphur reacts with chlorine in 1: 2 ratio the SCl ₄ is obtained which on hydrolysis gives H ₂ SO ₄ . Hence, the compound ' X ' is SCl ₄ and ' Y ' is H ₂ SO ₄ SCl ₄+4 H ₂ O Unstable S ( OH )₄ +4 HCl S ( OH )₄ Sulphurous acid H ₂ SO ₄ + H ₂ O The hybridisation of sulphur in SO ₃²⁻ is s p^3 .