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# In HCHO,the number of non-bonding electrons,$\sigma$-bonds and $\pi$ bonds are respectively

$\begin{array}{1 1}(a)\;1,1,3&(b)\; 2,3,1\\(c)\;1,2,3&(d)\;3,2,1\end{array}$

No of $\sigma$ bonds are 3
No of $\pi$ bonds are 1
No of non bonding electrons are 2
Hence (b) is the correct answer.