Which among the following halogens does not form a polyhalide ion?

Which of the following oxoacids of chlorine is the least oxidizing in nature?

In the following reaction,identify the nature of the product formed by the complete hydrolysis of $BrF_5$ at $R.T.$:
$BrF_5 + 3H_2O \longrightarrow HBrO_3 + 5HF$

Oxidising action increases in halogens in the following order:

Which among the following halogens combines readily with metals to form metal halides with highest ionic character?

Explain the preparation of chlorine and describe the Deacon's process and electrolytic process for its production.