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Chemistry - Complete Pblock- Question with Solution | TestHub

ChemistryComplete Pblock-p-Block 17,18Easy2 minPYQ_2020

ChemistryEasysingle choice

On heating NaX with $H_{2} S O_{4}$ and $M n O_{2}$ , the halogen that cannot be prepared is

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Answer:

Solution:

On heating NaX with $H_{2} S O_{4}$ and $M n O_{2}$ , $F_{2}$ cannot be prepared.
$2 N a X + H_{2} S O_{4} \overset{Δ}{\to} N a_{2} S O_{4} + 2 H X$
$M n O_{2} + 4 H X \to M n X_{2} + X_{2} (g) + 2 H_{2} O$
$M n O_{2}$ can oxidize HCl, HBr and HI and not HF.
Hence, $F_{2}$ cannot be prepared by this method.

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Complete Pblock-Subtopic:p-Block 17,18

⏱ 2mℹ️ Source: PYQ_2020

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