Complete and balance the following equations :

a. C + H₂SO₄ (conc.) →

b. XeF₂ + PF₅ →

OR

Write balanced chemical equations involved in the following reactions:

a. Fluorine gas reacts with water.

b. Phosphine gas is absorbed in copper sulphate solution.

What happens when AgCl is doped with CdCl₂? What is the name of this defect?

OR

What type of defect is shown by NaCl in

a. stoichiometric defects, and

b. non-stoichiometric defects?

a. Out of 0.1 molal aqueous solution of glucose and 0.1 molal aqueous solution of KCl, which one will have higher boiling point and why?

b. Predict whether van’t Hoff factor, (i) is less than one or greater than one in the following :

i. CH₃COOH dissolved in water

ii. CH₃COOH dissolved in benzene

Draw structures of the following :

a. H₂S₂O₇

b. HCIO₃

Write anode and cathode reactions that occur in dry cell. How does a dry cell differ from a mercury cell?