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

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - p -Block elements - ll4 Marks
MCQ
Which of the following fluorides does not exist?
  • A
    $NF_5$
  • ✓
    $PF_5$
  • C
    $AsF_5$
  • D
    $SbF_5$
✓

Answer

Correct option: B.
$PF_5$
b
$\mathrm{Na}_2 \mathrm{~S}_2 \mathrm{O}_3+4 \mathrm{Cl}_2+5 \mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{NaHSO}_4+8 \mathrm{HCl}$

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