1.

A greenish yellow gas reacts with an alkali metal hydroxide to form a halate which can be used in fire works safety matches. The gas and halate respectively are

Answer»

`Br_(2)KBrO_(3)`
`Cl_(2),KClO_(3)`
`l_(2),NaIO_(3)`
`Cl_(2),NaClO_(3)`

Solution :`3Cl_(2)+6KOH to KClO_(3)+5KCl+3H_(2)O`
`KClO_(3)` is used in FIRE works and safety MATCHES and `Cl_(2)` is greenish yellow gas.


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