Which of the following reacts most slowly with nitric acid?

Which of the following is useful in the preparation of chlorine?

Which substance eliminates bromine from $KBr$ solution?

Fluorine reacts with water to produce

Among the oxyacids of chlorine,the order of acidic character is

Consider the following reactions:
$(A) (\text{Ionic halide}) + (B) (\text{Good oxidising agent}) + \text{conc. } H_2SO_4 \to (C) (\text{Red-Orange gas is evolved with few by-products})$
$(D) (\text{Other ionic halide}) + (B) + \text{conc. } H_2SO_4 \to (E) (\text{Has same colour as } (C))$
Which of the following properties are different for $(C)$ and $(E)$?