Question : When camphor is heated, which of the following changes will take place?

Option 1: Solid to gas

Option 2: Solid to liquid to gas

Option 3: Liquid to gas

Option 4: Solid to liquid

Question : There is a 4% increase in volume when a liquid freezes to its solid state. The percentage decrease when solid melts to liquid again is:

Option 1: $3\frac{3}{13}$%

Option 2: $4$%

Option 3: $4\frac{1}{13}$%

Option 4: $3\frac{11}{13}$%

Question : The water of the coconut is

Option 1: liquid nucellus

Option 2: liquid mesocarp

Option 3: liquid endocarp

Option 4: degenerated liquid endosperm

Question : A mixture contains liquid A and B in the ratio 5 : 3, respectively. If 3 litres of liquid B is added to it, the ratio of liquid A to liquid B becomes 7 : 6. What is the quantity of liquid A in the mixture?

Option 1: $7 \frac{2}{3}$ litres

Option 2: $9 \frac{1}{3}$ litres

Option 3: $11 \frac{2}{3}$ litres

Option 4: $13 \frac{1}{3}$ litres

Question : By which of the following processes is a solid substance directly converted into gas?

Option 1: Deposition

Option 2: Sublimation

Option 3: Vaporisation

Option 4: Fusion