Question

Tick the correct option.
1) Which of the following substances is made up of more than one type of atoms?
a)Compounds
b) Elements
c) Noble gasee
d) None of these
2) Which of the following substances is a Compound?
a) Sodium
b)Sodium chloride
c) Chlorine
d) Oxygen
3) What does H2 represent?
a) Hydrogen atom
b) Hydrogen molecules
c) Compound
d) None of these
4) Which of the following substances is an element?
a) Mercury
b) Sodium chloride
c) Carbon dioxide
d) Hydrochloric acid ​

Answer 1

Answer:

1. A

2. B

3. B

4. A

The following are the answers to your questions

Answer 2

Answer: 1) (a) Compounds

              2) (b) Sodium chloride        

              3) (b) Hydrogen molecules

               4) (a) Mercury