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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
In which of the following reaction, the hybridisation of the central atom changes from $sp^2$ to $sp^3$ ?
  • A
    $N{H_3} + {H^ + } \to NH_4^ + $
  • B
    $Al{F_3} + 3{F^ - } \to AlF_6^{3 - }$
  • ✓
    $B{F_3} + {F^ - } \to BF_4^ - $
  • D
    ${H_2}O + {H^ + } \to {H_3}{O^ + }$
✓

Answer

Correct option: C.
$B{F_3} + {F^ - } \to BF_4^ - $
c
$\mathop {B{F_3}}\limits_{s{p^2}}  + {F^\Theta } \longrightarrow$ $\mathop {BF_4^\Theta }\limits_{s{p^3}} $

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