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
A student took 20 millilitres of water in a beaker and dissolved two teaspoonful of sugar in it. When he checked the volume, to his surprise, the volume remained same at 20 millilitres. Can you tell the reason?
Sugar did not actually dissolve in the water
Sugar evaporated
Sugar occupied the empty spaces in between the molecules of water.
Sugar has zero volume
Study the following table and answer the questionName the solutes which are soluble in water?
Sand and sugar
Sand and salt
Salt and kerosene
Sugar and salt
Which one of the following diagram shows the arrangement of molecules is true for solids?
Which one of the following has a fixed volume but no fixed shape?
Salt
Milk
Ice
Sand
To obtain water from water vapour, we should ___________ the water vapour .
Heat
Evaporate
Condense
Do nothing
Ramu dissolved some salt in water. He got salty water. What is the solute in this experiment?
Water
Salty water
Salt and water
If we take three samples of a solid, liquid and gas, each having a fixed volume of 1cm2, then which of them will have the most number of molecules?
Solid
Liquid
Gas
It will be same in all the three
We can separate sand from the water by
filtration
evaporation
boiling
All of the above
Which one of the following transformations is occurring in the given figure?
Condensation
Melting
Evaporation
Boiling
