Question

a. soil
d. vinegar
A. Tick the most appropriate answer.
1. Which of the following exists in three different states in natural conditions on the earth
b. water
c oxygen
d. salt
2. Which of the following does not dissolve in water?
a. sand
b. sugar
C. salt
3. What type of solution is milk?
a. homogeneous solution
b. suspension
c. colloid
d. none of these
4. Which of the following is an anhydrous salt?
a. copper sulphate pentahydrate
b. calcium chloride hexahydrate
C. Magnesium sulphate heptahydrate
d. sodium nitrate
5. Which gas is evolved during the reaction of water with metals?
a. carbon dioxide b . hydrogen
C. oxygen
d. nitrogen
6. By which of the following can temporary hardness of water be removed from hard water?
a. boiling
b. freezing
c. melting
d. none of these​

Answer 1

Answer:

answer of 1st is b 2nd is a 3rd is c 4th is d 5th is b and 6th is a

Answer 2

Answer:

1)b) water

2)a) sand

3)c) colloid

4)d)sodium nitrate

5)b) hydrogen gas

6)a)boiling

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