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STD 12 - p -Block elements - ll — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - p -Block elements - ll4 Marks
MCQ
Correct statement is
  • A
    $F -F > Cl -Cl$ bond dissociation energy
  • ✓
    $HI > HBr > HCl > HF$ thermal stability
  • C
    $HI > HBr > HCl > HF$ reducing power
  • D
    None of these
✓

Answer

Correct option: B.
$HI > HBr > HCl > HF$ thermal stability
b
Within a group, the element above can displace the element below in a redox reaction.

When bromine gas is passed through solutions of $NaF , NaCl , NaI$, bromine cannot displace fluorine and chlorine compound but it can displace iodine compound

$2 NaI + Br _2 \rightarrow 2 NaBr + I _2$

Iodine gas is released.

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