Of the four oxyacids of chlorine,the strongest oxidising agent in dilute aqueous solution is:

When a brown compound of manganese $(A)$ is treated with $HCl$,it gives a gas $(B)$. The gas,when taken in excess,reacts with $NH_{3}$ to give an explosive compound $(C)$. Identify compounds $A$,$B$,and $C$.

Observe the following reaction. This reaction represents:
$4 HCl + O_2 \xrightarrow[723 \ K]{CuCl_2} 2 Cl_2 + 2 H_2 O$

Shapes of certain interhalogen compounds are stated below. Which one of them is not correctly stated?

$MnO_{2} + HCl \xrightarrow{\Delta} A_{(g)}$
$A_{(g)} + F_{2} (\text{excess}) \rightarrow B_{(g)}$
$B_{(l)} + U_{(s)} \rightarrow C_{(g)} + D_{(g)}$
The gases $A$,$B$,$C$ and $D$ are respectively

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