The laughing gas is

A classroom consists 10 equidistant bench. If nitrous oxide (laughing gas) is released from the first desk and tear gas (C_(6)H_(11)Obr) is released from last desk. Find out the desk from 1st at which students starts laughing and weeping simultaneously.

A classroom consists 10 equidistant bench. If nitrous oxide (laughing gas) is released from the first desk and tear gas (C_(6)H_(11)Obr) is released from last desk. Find out the desk from 1st at which students starts laughing and weeping simultaneously.

Chemical formula of laughing gas is

The chemical formula of 'laughing gas' is

The chemical formula of 'laughing gas' is