An aqueous solution of ammonia consist of

Options

A. `NH_(3)` and `OH^(-)`
B. `NH_(4)^(+)` and `OH^(-)`
C. `OH^(-)`
D. `H^(+)`

Answer

2

Explanation

`NH_(3)` is highly soluble water. An aqueous solution of ammonia is alkaline (weakly basic),tuning moist red litmus blue.The explanation is that the ammonia not only dissolves physically in water ,but also reacts with it forming ammonium hydroxide which undergoes dissociation in solution causing a preponderance of hydroxyl ions over `H^(+)` ions:
`NH_(3)+H_(2)O hArr NH_(4)OH hArr NH_(4)^(+)+OH^(-)`
It neutralizes acids in the dry state as well as in aqueous solutions forming their corresponding salts:
`NH_(4)+HClrarrNH_(4)Cl`
`2NH_(4)OH+H_(2)SO_(4)rarr(NH_(4))_(2)SO_(4)+2H_(2)O`