Quiz 276 – Science and Tech

1. Brass is an alloy of:

(a) Copper and nickel

(b) Copper and zinc

(c) Copper and tin

(d) Copper and Aluminium


 

2. Which of the following contains copper?

(a) Petre

(b) Bauxite

(c) Malachite

(d) Syvanite


 

3. Limestone is:

(a) Ca(OH)2

(b) CaSO4

(c) CaCO3

(d) CaO


 

4. Bronze is an alloy of:

(a) Copper and iron

(b) Copper and Aluminium

(c) Copper and nickel

(d) Copper and tin


 

5. Calamine is composed of:

(a) Sodium

(b) Lead

(c) Zinc

(d) Potassium


 

6. Calamine is:

(a) ZnS

(b) ZnCO3

(c) ZnO

(d) ZnSO4


 

7. Corundum is ore of-

(a) Zinc

(b) Magnessium

(c) Aluminium

(d) Tin


 

Answers:

  1. (b)
  2. (c)
  3. (c)
  4. (d)
  5. (c)
  6. (b)
  7. (c)

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