Question

Which is an example of dissociation?

A. C + O2 CO2
B. NH3 + H2O NH4+ + OH–
C. SO2 + H2O HSO3– + H+
D. Ca3(PO4)2    3Ca2+ + 2PO43–

Answer 1

D is the correct answer! YAYYYYYYAA!!

Answer 2

Answer: Option (D) is the correct answer.

Step-by-step explanation:

A dissociation reaction is a reaction in which in which a compound splits or dissociates into its ions.

For example,
`Ca_(3)(PO)_(4) \rightarrow 3Ca^(2+) + 2PO^(3-)_(4)`

Whereas when two elements combine together and results in the formation of a single compound then it is known as synthesis reaction.

For example,
`C + O_(2) \rightarrow CO_(2)`

On the other hand, when
`NH_(3)` is dissolved in water then it gives ammonium and hydroxide ions.

Thus, we can conclude that out of the given options
`Ca_(3)(PO)_(4) \rightarrow 3Ca^(2+) + 2PO^(3-)_(4)` is an example of dissociation.