MCQ
In which molecule all bonds are not equal
- A$SiF_4$
- B$BF_4^-$
- C$XeF_4$
- ✓$SF_4$

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Given : $K_b(H_2O) = 0.51\, Kkg \,mol^{-1}$
$N_A = 6 × 10^{23}$
$[Li = 7, \,\,Na = 23$, $K = 39,\,\, Rb = 85.5$ , $Cs = 133, \,\,Cl = 35.5]$
