# What is the product of following reaction?

Question:

What is the product of following reaction?

Hex-3-ynal

(i) $\stackrel{\mathrm{NaBH}_{4}}{\longrightarrow}$ ?

(ii) $\mathrm{PBr}_{3}$

(iii) $\mathrm{Mg}$ /ether

(iv) $\mathrm{CO}_{2} / \mathrm{H}_{3} \mathrm{O}^{+}$

Correct Option: , 4

Solution: