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Chlorine on reaction with hot and concen...

Chlorine on reaction with hot and concentrated `NaOH` yields

A

`NaCl` and `NaCIO_(3)`

B

`NaCl` and `NaCIO`

C

`NaCl` and `NaCIO_(2)`

D

`NaCl` and `NaCIO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
1
Chlorate are formed with hot and concentrated alkali solution :
`3Cl_(2)+6NaOH rarr 5NaClO_(3)+3H_(2)O`
It is disproportionate reactions as `Cl` from zero oxidation state is changed to `-1`and `+5` oxidation states:
`6Cl_(2)+underset("Hot and conc.")(6Ca(OH)_(2))rarr5CaCl_(2)+Ca(ClO_(3))_(2)+2H_(2)O`
Hypochlorities are formed with cold and dilute solution of alkali:
`Cl_(2)+2NaOH rarr NaCl+NaCIO+H_(2)O`
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