Which one of the following is NOT correct?
HeatSolid → Liquid
Cool Solid → Gas
CoolLiquid → Solid
heatLiquid → gas
A student took water and dissolved some salt in it. Later she placed the salty water under sunlight for three days. she found only the crystals of salt but not water. The process demonstrated in the above experiment is
filtration
boiling
condensation
evaporation
Which one of the following states of matter has the strongest forces of attraction between its molecules?
Solid
Liquid
Gas
Plasma
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
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?
It will be same in all the three
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 transformations is occurring in the given figure?
Condensation
Melting
Evaporation
Boiling
Which one of the following is NOT an outcome of condensation?
Hail
Fog
Air currents
Frost
Ramu dissolved some salt in water. He got salty water. What is the solute in this experiment?
Salt
Water
Salty water
Salt and water
Which one of the following can vary in volume?
Book
Spinning top
Balloon
Kettle
