Alcohol is a pure substance
Answer: But-2-enoic acid has
11 Sigma Bonds and
2 Pi Bonds.
Explanation: The sigma bonds which are formed due to head to head overlap of partally filled orbitals are shown in
red color, while Pi bonds which are formed after the formation of sigma bond by overlap of orbitals perpendicular to the sigma bond are shown in
blue color.
CO2, C2H2, BeF2, XeF2, etc all these molecules have linear geometry.
It would be a,b,c as the answer. hope this helps!