MCQ
Number of $\sigma$ and $\pi$ bonds present in ethylene molecule is respectively :
- A$3$ and $1$
- B$5$ and $2$
- C$4$ and $1$
- ✓$5$ and $1$

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$NO _{3}^{-}, H _{2} O _{2}, BF _{3}, PCl _{3}, XeF _{4},SF _{4}, XeO _{3}, PH _{4}^{+}, SO _{3},\left[ Al ( OH )_{4}\right]^{-}$
(Use $R =8.31\, J\, K ^{-1}\, mol ^{-1} ; \log 2=0.3010$. In $10=$ $2.3, \log 3=0.477$ )
$[$ Given $: \sqrt{3}=1.73, \sqrt{2}=1.41]$