Match column I with column II and select the correct option using the given codes.

	Column I		Column II
a.	A metal that forms amphoteric oxides	(i)	Ga
b.	A metal which melts when kept on our palm	(ii)	Au
c.	A metal that reacts with nitric acid	(iii)	Al
d.	A metal which cannot displace hydrogen from acids	(iv)	Mn

options

1. a – (ii), b – (i), c – (iii), d – (iv)
2. a – (iii), b – (i), c – (iv), d – (ii)
3. a – (iv), b – (ii), c – (iii), d – (i)
4. a – (iii), b – (ii), c – (i), d – (iv)

a – (iii), b – (i), c – (iv), d – (ii)

Reason —

a. Amphoteric oxides → (iii) Al.

• Aluminum forms amphoteric oxide Al₂O₃, which reacts with both acids and bases.

b. Melts on the palm → (i) Ga.

• Gallium has a very low melting point (~29.7 °C), so it melts with body heat.

c. Reacts with nitric acid → (iv) Mn.

• Manganese is a reactive metal and readily reacts with HNO₃.

d. Cannot displace hydrogen from acids → (ii) Au.

• Gold is a noble metal (below H in the activity series), so it does not liberate H₂ from acids.