1. What does happens when water is condensed into ice ? (1)
1. Heat is absorbed
2. Heat is released
3. Quantity of heat remains unchanged
4. None of these
2. Which of the following gases is not a noble gas? (4)
1. Zenon
2. Argon
3. Helium
4. Chlorine
3. Which of the following diffuses most quickly ? (2)
1. Solid
2. Gas
3. Liquid
4. None of these
4. Which temperature in Celsius scale is equal to 300 K ‘? (4)
1. 30°C
2. 27°C
3. 300°C
4. None of these
5. Light-year measures which of the following? (4)
1. Intensity of light
2. Mass
3. Time
4. Distance