Question

A. Choose the correct answer:
1. Mist is a heterogeneous mixture of
a. solid in gas
b. liquid in gas
c. gas in liquid
d. gas in gas
2. Common salt can be obtained from its solution by the process of
a. decantation
b. winnowing
c. evaporation
d. centrifugation
3. During the process of distillation, the pure liquid obtained is called
a. filtrate
b. residue
c. centrifuge
d. distillate
4. The process of separating lighter particles of solid from heavier particles with the help of win
is called
a. winnowing
b. sieving
c. sublimation
d. evaporation
5. Which of the following methods of separation is used to separate cream from milk?
a. Distillation
b. Evaporation
c. Centrifugation
d. Crystallisation
6. The symbolic representation of one molecule of a compound is called its
a. symbol
b. molecular formula
c. atomicity
d. metalloid
7. The ratio of the atoms of hydrogen and oxygen in a molecule of water is
b. 1:2
a. 1:1
2:1
d. 2:2
8. The symbol for lead is
a. He
b. Si
C N
d. Pb
9. Two atoms of hydrogen are represented by
a. H
b. H.
d. H
c. 2H​

Answer 1

Answer:

1 b

2 c

3 d

4 winnowing

5 d

hope it helps you out

Answer 2

Answer:

1. b. liquid in gas
2. c. evaporation
3. a. filtrate (not sure)
4. a. winnowing
5. c. Centrifugation

7. c. 2:1

tHaNkS