1. A
   $0\cdot1 \, \text{kg}$
2. B
   $1 \, \text{kg}$
3. C
   $10 \, \text{kg}$
4. D
   $5 \, \text{kg}$

Tap an option to check your answer.

1. A
   liquid to vapour with a change of temperature
2. B
   liquid to vapour without a change of temperature
3. C
   vapour to liquid without a change of temperature
4. D
   vapour to liquid with a change of temperature

Tap an option to check your answer.

1. A
   the temperature is high and the surface area of the liquid is large
2. B
   the temperature is low and the surface area of the liquid is large
3. C
   the temperature is low and the surface area of the liquid is small
4. D
   the temperature is high and the surface area of the liquid is small

Tap an option to check your answer.

1. A
   1 only
2. B
   2 only
3. C
   1 and 2 only
4. D
   1, 2 and 3

Tap an option to check your answer.

1. A
   $2 \, \Omega$
2. B
   $10 \, \Omega$
3. C
   $0\cdot5 \, \Omega$
4. D
   $5 \, \Omega$

Tap an option to check your answer.

1. A
   tangential to the conducting surface
2. B
   at right angles to the conducting surface and towards the centre of the sphere
3. C
   at any angle to the conducting surface
4. D
   at right angles to the conducting surface and outwards from the centre of the sphere

Tap an option to check your answer.

1. A
   Alloy
2. B
   Milk
3. C
   Air
4. D
   Sugar

Tap an option to check your answer.

1. A
   Evaporation
2. B
   Fractional distillation
3. C
   Separating funnel
4. D
   Sublimation

Tap an option to check your answer.

1. A
   Dissolving sugar in water
2. B
   Melting of ice
3. C
   Crystallization
4. D
   Milk turning sour

Tap an option to check your answer.

1. A
   $(NH_4)_2CO_3$
2. B
   $NH_4(CO_3)_2$
3. C
   $(NH_3)_2CO_3$
4. D
   $NH_4CO_3$

Tap an option to check your answer.