C and D are two aqueous solutions. Carry out the following exercises on C and D. record your observations and identify any gas(es) evolved. State the conclusion you draw from the result of each test.
(a) (i) To about 2 cm3 portion of C, add NaOH(aq) in drops until in excess.
Warm the mixture.
(ii)To another 2 cm3 portion of C, add HCl(aq) followed by BaCl2(aq). [9 marks]
(b) (i) To about 2 cm3 portion of D, add NH3(aq) in drops and then in excess.
- To another 2 cm3 portion of D, add AgNO3(aq) followed by HNO3(aq).
[8 marks]