Identify the correct decreasing order of boiling point for hydrides of halogens.

Find out number of carbon atoms present in 0.35 mole of glucose.

Find the expected value of $\Delta \mathrm{T}_{\mathrm{b}}$ for $1 \mathrm{~m} \mathrm{AlCl}{ }_3$ solution in water if solution of nonelectrolyte of same concentration has $\Delta \mathrm{T}_{\mathrm{b}}$ value ' $x$ ' K .

Which of the following change takes place at positive electrode during working of dry cell?