Sigma and pi bonds

How many sigma and pi bonds are present in pent-1-yne, $\ce{C5H8}$? A. 12 sigma bonds and 2 pi bonds B. 8 sigma bonds and 3 pi bonds C. 13 sigma bonds and 1 pi bond D. 9 sigma bonds and 4 pi bonds

Which orbitals overlap to form the $\sigma$-bond and the two $\pi$-bonds between carbon and nitrogen in hydrogen cyanide, HCN? A. $\sigma$-bond: sp and $\mathrm{sp^3}$; $\pi$-bonds: p and p B. $\sigma$-bond: sp and sp; $\pi$-bonds: p and p C. $\sigma$-bond: sp…

What are the numbers of σ (sigma) and π (pi) bonds in one molecule of prop-2-ynal, $\ce{HC#CCHO}$? A. 5 σ and 3 π B. 3 σ and 3 π C. 3 σ and 5 π D. 6 σ and 2 π

Which pair of statements about the electrons in this molecule is correct? A. 3 non-bonding pairs of electrons and 8 electrons in $\pi$ bonds B. 5 non-bonding pairs of electrons and 8 electrons in $\pi$ bonds C. 5 non-bonding pairs of electrons and 10 electrons…