Choose the correct answer :

Hydroxide of this metal is soluble in NaOH solution.

1. Magnesium
2. Lead
3. Silver
4. Copper

Sodium hydroxide solution is added to the solutions containing the ions mentioned in List 1.

List 1 —

1. Pb²⁺
2. Fe²⁺
3. Zn²⁺
4. Fe³⁺
5. Cu²⁺
6. Ca²⁺

The precipitates obtained are in list 2 —

A: Reddish brown
B: White insoluble in excess
C: Dirty green
D: White soluble in excess
E: White soluble in excess
F: Blue.

Match list 1 with list 2

Name: The gas evolved on reaction of aluminium with boiling concentrated caustic alkali solution.

State one observation for:

1. Excess NH₄OH soln. is added to Pb(NO₃)₂
2. NaOH soln. is added to FeCl₃ soln. in excess.