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Reactivity with Halogens and Hydrogen (Group 2)

Assertion :Ch...

Question

Assertion :Chlorine gas disproportionates in hot and conc. NaOH solution Reason: NaCl and NaOCl are formed in the above reaction

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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C

Assertion is correct but Reason is incorrect

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D

Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Chlorine gas reacts with hot and concentrated sodium hydroxide to form sodium chloride, sodium chlorate and water.

$3 C l_{2} + 6 N a O H \to 5 N a C l + N a C l O_{3} + 3 H_{2} O$

As NaClO $_{3}$ is formed in this reaction, not NaOCl, Assertion is correct but Reason is incorrect

Hence, the correct option is $C$

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