Question

1) Which of the following doesn't have a fixed melting point/boiling point
a) Gold
b) Ethanol
c) Air
d) Oxygen

2) Which of the following will show tyndall effect
a) Salt solution
b) Milk
c) Copper Sulphate solution
d) Potassium nitrate solution

3)The formation of mixture
a) Releases energy
b) Absorbs energy
c) Doesn't involve any energy change
d) None of the above​

Answer 1

Answer:

1. (c) Air

2. (b) Milk and Starch Solution

3. (c)

Explanation:

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