Which of the following liquids dissolve in water?
Alcohol
Kerosene
Petrol
Diesel
In which of the following, the molecules are separated by large empty spaces?
solids
liquids
gases
kerosene
Which one of the following always in a state of motion?
Molecules
Elements
Compounds
Mixtures
Which is the smallest unit of a substance that has all the properties of that substance?
molecule
elements
compounds
mixtures
Anything that occupies space and has weight is called:
Non-metal
Metal
State
Matter
Which is a permanent change which cannot be reversed?
Chemical change
Physical change
Temporary change
Conversion of water to ice
In which of the following, the molecules are less closely packed?
matters
Heating or cooling brings about changes in:
atom
molecules
matter
All matter can be split into tiny units called:
Which one of the following has a definite volume, but no definite shape?
Liquid
Solid
Gas
Oxygen