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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
Assertion : $F$ is more electronegative than $Cl$.

Reason : $F$ has high electron affinity than $Cl$.

  • ✓
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: A.
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
a
$2.$ $Cl _2+\text { cold dil. } NaOH \longrightarrow NaOCl + NaCl $

$Cl _2+\text { hot conc. } NaOH \longrightarrow NaClO _3+ NaCl$

$NaOCl$ is salt of hypochlorous acid $= P$.

$NaOCl _3$ is salt of chloric acid $= Q$.

$Cl _2+ SO _2 \xrightarrow{\text { Charccal }} SO _2 Cl _2( R ) $

$SO _2 Cl _2+ P _4 \longrightarrow PCl _5( S )+ SO _2 $

$PCl _5+ H _2 O \longrightarrow H _3 PO _4( T )+ HCl$

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