MCQs on Metals and Non-metals

MCQs on Metals and Non-metals

1. Which of the following metals is the most abundant in the earth’s crust?

(a) Al

(b) Fe

(c) Na

(d) Ca

Answer: (a)

2. Which of the following is a poor conductor of heat among the given metals?

(a) Sodium

(b) Calcium

(c) Lead

(d) Mercury

Answer: (c)

3. Chlorides of non-metals are covalent because

(a) of electrons sharing

(b) they can donate electrons to chlorine

(c) they cannot share electrons with chlorine

(d) they donate electrons to chlorine forming chloride ions

Answer: (a)

4. Which of the following non-metals is lustrous?

(a) Oxygen

(b) Sulphur

(c) Iodine

(d) Nitrogen

Answer: (c)

5. Alloy of which of the following metals is called amalgam?

(a) Hg

(b) Zn and Cu

(c) Cu and Sn

(d) Pb and Sn

Answer: (a)

6. Which of the following non-metals is liquid at room temperature?

(a) Helium

(b) Carbon

(c) Mercury

(d) Bromine

Answer: (d)

7. Bauxite is an ore of

(a) Hg

(b) Al

(c) Fe

(d) Cu

Answer: (b)

8. Which of the following is the suspension of slaked lime in the water?

(a) Quick lime

(b) Milk of lime

(c) Lime water

(d) None of the above

Answer: (b)

9. Which of the following oxides is amphoteric?

(a) MgO

(b) Al₂O₃

(c) K₂O

(d) Na₂O

Answer: (b)

10. Which of the following is not ionic?

(a) KCl

(b) NaCl

(c) HCl

(d) CCl₄

Answer: (d)