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

Question

A greenish yellow gas reacts with an alkali metal hydroxide to form a halate which can be used in fire works and safety matches. The gas and halate respectively are (A) Br2,KBrO3 (B) Cl2,KClO3 (C) I2,NaIO3 (D) Cl2,NaClO3

Tardigrade Admin · Accepted Answer

The gas is Cl2 and the halate used in fire works and safety matches is KClO3 underset textgreenish yellowgas3 C l2+6KOH arrow underset textpot.chlorate (Halate)K C l O3+5KCl+3H2O As bromine is reddish liquid and I2 is violet solid so they are ignored here.

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

$B r_{2}, K B r O_{3}$

$C l_{2}, K Cl O_{3}$

$I_{2}, N a I O_{3}$

$C l_{2}, N a Cl O_{3}$

The gas is $C l_{2}$ and the halate used in fire works and safety matches is $K Cl O_{3}$
$greenish yellowgas 3 C l_{2} + 6 K O H \to pot.chlorate (Halate) K Cl O_{3} + 5 K Cl + 3 H_{2} O$
As bromine is reddish liquid and $I_{2}$ is violet solid so they are ignored here.

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

Br2​,KBrO3​

Cl2​,KClO3​

I2​,NaIO3​

Cl2​,NaClO3​

The gas is Cl2​ and the halate used in fire works and safety matches is KClO3​ greenish yellowgas3Cl2​​+6KOH→pot.chlorate (Halate)KClO3​​+5KCl+3H2​O As bromine is reddish liquid and I2​ is violet solid so they are ignored here.

$B r_{2}, K B r O_{3}$

$C l_{2}, K Cl O_{3}$

$I_{2}, N a I O_{3}$

$C l_{2}, N a Cl O_{3}$

The gas is $C l_{2}$ and the halate used in fire works and safety matches is $K Cl O_{3}$
$greenish yellowgas 3 C l_{2} + 6 K O H \to pot.chlorate (Halate) K Cl O_{3} + 5 K Cl + 3 H_{2} O$
As bromine is reddish liquid and $I_{2}$ is violet solid so they are ignored here.