General Science

General Science for Aptitude Tests

MCQS

 

1.  The most abundant available compounds of metals are

(a) Silicates                   (b) Phosphates

(c) Chlorides                  (d) Hydrides

 

2.  Hardness is the physical property of

(a) Metals                      (b) Non-metals

(c) Metalloids                 (d) None of these

 

3.    A compound is substance which is formed by

(a) Same elements in the fixed ratio

(b) Same elements in the different ratio

(c) Different elements in the fixed ratio

(d) Same elements in the same ratio

 

4.  The earth’s crust is rich in

(a) Neon                       (b) Oxygen

(c) Nitrogen                   (d) Hydrogen

 

5.  The three layers of the earth are:

(a) crust, mantle and talc

(b) Mercury, Jupiter and Mars

(c) Crust, mantle and core                 

(d) Land, atmosphere and ocean

 

6.  Who invented the first computer?

(a) Graham Bell            (b) Thomas Addison 

(c) Babbage                (d) Marconi

 

7.  Hydrargyrum is Latin name of

(a) Nickel                      (b) Hydrogen

(c) Mercury                   (d) Helium

 

8.  The only liquid metal on the earth is:

(a) Iron                         (b) Water

(c) Bromine                   (d) Mercury

 

9.  Oxygen is……………and copper is…………….

(a) Metal….Non-metal      (b) Metal…metalloid

(c) Non-metal…metalloid  (d) Non-metal…metal

 

10.  Diamond is

(a) Metal                       (b) Metalloid

(c) Non-metal                (d) All of them

 

11.  Which of the following are metals?

(a) Na, Au, Ag             (b) Ag, Cl, W

(c) Ar, Ne, H                (d) C, N, S

 

12.  Duralumin is used for making

(a) Machines                (b) Aeroplanes

(c) Balloons                 (d) Computers

 

13.  Mohs Scale is the unit of

(a) Boiling point            (b) Melting point

(c) Hardness                (d) Humidity

 

14.  The substances through which electricity can pass are called

(a) Conductors             (b) Non-conductors

(c) Insulators               (d) Non-metals

 

15.  Hydrogen is used in 

(a) Ghee                     (b) Air Balloons

(c) Fertilizers               (d) All of them

 

16.  Which of these does not conduct electricity and heat?

(a) Nitrogen                      (b) Gold  

(c) Iron                          (d) Copper

 

17.  The air that we breathe has large amount of

(a) Oxygen                 (b) Nitrogen

(c) Carbon dioxide       (d) Hydrogen

 

18.  Inventor of the first telephone was

(a) Graham Bell            (b) Thomas Addison 

(c) Babbage                (d) Marconi

 

19.  The study of cell and its parts is called

(a) Physiology                (b) Chemistry

(c) Botany                     (d) Cytology

 

20.  Who invented the first microscope?

(a) Graham Bell                (b) Robert Boyle

(c) Galileo                    (d) Robert Hooke

 

ANSWERS

1. A
   
2. A
3. C
4. B
   
5. C
   
6. C 
7. C
8. B
9. D
   
10. C
11. A
12. B
13. C
14. A
15. D
16. A
17. B
18. A
19. D
20. C