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

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
Which is incorrectly matched?
  • A
    ${I_4}{O_9} \rightleftharpoons {I^{3 + }} + 3IO_3^ - $
  • B
    ${I_2}{O_4} \rightleftharpoons I{O^ + } + IO_3^ - $
  • ✓
    $CsB{r_3} \rightleftharpoons C{s^ + } + Br_3^ - $
  • D
    None of these
✓

Answer

Correct option: C.
$CsB{r_3} \rightleftharpoons C{s^ + } + Br_3^ - $
c
Stability of carbon tetrahalides decreases with increase in the size of halogen atom. So, $CF_4$ is the most stable halide among the given options.

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