What is the major organic product obtained from the reaction of 1-butanol with aqueous hbr at reflux

1-bromobutane

Explanation:

The reaction of butane with aqueous HBr at reflux is an SN2 reaction. The reaction passes through a single transition state in which the bond between carbon and the leaving group as well as the bond between carbon and the incoming nucleophile are being broken and formed simultaneously. It is a synchronous reaction.

The nuclephile attacks from the backside while the leaving group departs. This leads to inversion of configuration of the product.

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

the answer to your question is c