As the atomic number of halogens increases,the halogens:

Sea weed is employed as a source of manufacture of

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

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 $(E)$?

The interhalogen compound formed from the reaction of bromine with an excess of fluorine is:

Among the following,the correct order of acidity is