solve the b) question ii) part as soon as possible

Dear Student

When NaCl is heated with conc H₂SO₄ below 200°C:
​​NaCl (s) + H₂SO₄ (s) ⟶ NaHSO₄ (s) + HCl (g)

If you heat it up above 200°C reaction proceeds even further:
NaCl (s) + NaHSO₄ (s) ⟶ HCl (g) + Na₂SO₄ (s)

So, Sodium hydrogen sulphate is the correct answer.

Regards