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

Which of the following is the weakest acid?

Chlorine reacts with hot and concentrated $NaOH$ and produces compounds $(X)$ and $(Y)$. Compound $(X)$ gives a white precipitate with silver nitrate solution. The average bond order between $Cl$ and $O$ atoms in $(Y)$ is

The element exhibiting the most stable $+2$ oxidation state among the following is

Which element from the following combines with hydrogen to form a compound having the lowest acidic strength?

Which of the following can not undergo hydrolysis?