To obtain water from water vapour, we should ___________ the water vapour .
Heat
Evaporate
Condense
Do nothing
Which one of the following has a fixed volume but no fixed shape?
Salt
Milk
Ice
Sand
Which one of the following conversations is correct?
Heat HeatWater → Steam → Ice
Cool CoolSteam → Water → Ice
Cool Cool Water → Ice → Steam
Heat CoolSteam → Ice → Water
Which one of the following diagram shows the arrangement of molecules is true for solids?
The bubbles that come out rapidly when we open soda water bottle are
nitrogen bubbles
oxygen bubbles
water bubbles
carbon dioxide bubbles
Which one of the following is NOT an outcome of condensation?
Hail
Fog
Air currents
Frost
Which one of the following can vary in volume?
Book
Spinning top
Balloon
Kettle
Which one of the following processes involves a decrease in the intermolecular forces between the molecules?
Condensation
Crystallisation
Evaporation
All of the above
Which one of the following is/are in a liquid state normally?
Water
Petrol
Mercury
The following table contains some substances placed under the headings: solids, liquids and gases. Which one of the following is placed under wrong group?
Oxygen
Kerosene
