The reaction in which the hybridisation of the underlined atom is affected is

  • A
    $\underline{N}H_3 \xrightarrow{H^{+}} [NH_4]^+$
  • B
    $\underline{Xe}F_4 + SbF_5 \rightarrow [XeF_3]^+ [SbF_6]^-$
  • C
    $H_2 \underline{S}O_4 + NaCl \xrightarrow{420 \ K} NaHSO_4 + HCl$
  • D
    $H_3 \underline{P}O_2 \xrightarrow{\text{Disproportionation}} PH_3 + H_3PO_3$

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$(iv)$ molecule can be in infinite plane
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Correct code is:

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Assertion : Among the carbon allotropes,diamond is an insulator,whereas,graphite is a good conductor of electricity.
Reason : Hybridization of carbon in diamond and graphite are $sp^3$ and $sp^2$,respectively.

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