Which is a general representation of a secondary amine?

Secondary amine contain a single hydrogen atom in its alpha carbon.

Explanation:

Secondary amine is also called 2° amine.Amines are named so because they contain -NH2 as functional group.

  The carbon that is adjacent to the functional group here it is -NH2 is called alpha carbon.

  If the alpha carbon of that amine comound contain a single hydrogen atom,then it is termed  as secondary amine.

  For example isopropyl amine.

RNH2

Explanation:

A primary amine is one in which the nitrogen of the amine functional group is connected to only one carbon atom. Hence there are two nitrogen atoms connected to nitrogen as shown above. This is called the general formula for primary amines and serves the purpose of a general representation for primary amines.

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm