Elements

1

Which element is a good conductor of electricity and is used in electrical wiring?

A Aluminum B Copper C Silver D Iron

2

Which element is used in the production of steel?

A Carbon B Silicon C Manganese D All of the above

3

Which element is used in making matchsticks?

A Phosphorus B Sulfur C Potassium D Magnesium

4

Which element is a liquid metal at room temperature?

A Mercury B Silver C Gold D Copper

5

Which element is a gas that gives a pinkish glow in discharge tubes?

A Neon B Argon C Krypton D Xenon

6

What is the chemical symbol for carbon?

A Ca B Cn C C D Cr

7

What is the chemical symbol for cobalt?

A Co B Cb C Ct D Cn

8

What is the chemical symbol for uranium?

A U B Ur C Un D Um

9

What is the chemical symbol for silver?

A Ag B Si C Sv D Ar

10

What is the chemical symbol for iron?

A Fe B Ir C Io D Fn

11

What is the chemical symbol for gold?

A Gd B Au C Ag D Go

12

Which element is used as a semiconductor?

A Silicon B Germanium C Both A and B D Carbon

13

What is the chemical symbol for helium?

A He B H C Hl D El

14

What is the chemical symbol for arsenic?

A As B Ar C An D At

15

Which element is used in the treatment of water?

A Chlorine B Ozone C Fluorine D Iodine

16

What is the chemical symbol for tin?

A Ti B Tn C Sn D Te

17

Which element is a component of DNA?

A Nitrogen B Phosphorus C Carbon D All of the above

18

Which element is the most abundant gas in the Earth's atmosphere?

A Oxygen B Nitrogen C Carbon dioxide D Argon

19

Which element is used in the production of electronic devices?

A Silicon B Germanium C Gallium D All of the above

20

Which element is a halogen used in disinfectants?

A Chlorine B Bromine C Fluorine D Iodine

21

What is the chemical symbol for platinum?

A Pt B Pl C Pm D Pn

22

Which element is a precious metal used in jewelry?

A Gold B Silver C Platinum D All of the above

23

Which element is essential for respiration in humans?

A Nitrogen B Oxygen C Carbon D Hydrogen

24

What is the chemical symbol for nitrogen?

A N B Ni C Nm D Nr

25

What is the chemical symbol for iodine?

A I B Io C Id D In