A greenish yellow gas reacts with an alkin metal hydroxide to form a halate which can be used in fireworks and saftey matches. The gas and the halate are

Options

A. `Br_(2),KBrO_(3)`
B. `Cl_(2),KCIO_(3)`
C. `I_(2),NaIO_(3)`
D. none

Answer

2

Explanation

`3Cl_(2)(g)+6KOH(aq)overset(Delta)rarrKClO_(3)+5KCl+3H_(2)O`
`Cl_(2)`is greenish yellow gas.
`KClO_(3)` is used in, fire works and safety matches, as an oxidising agent.