The solute dissolves in water or any liquid is called as
solvent
solution
solid
solute
Iron is electroplated with nickel and chromium by the process of electrolysis is called
Galvanising
Electroplating
Tin plating
alloying
______________is lighter than water.
Sugar
Salt
Ice
Stone
Iron is coated with tin by dipping iron sheets in molten tin in order to prevent rusting is called
Which is used for protecting the lower parts of ships?
coal tar
oil paints
plastic coating
enamel coating
Bicarbonates of calcium and magnesium causes
temporary hardness
permanent hardness
temporary softness
permanant softness
Pure water is a______________of heat and electricity.
Good conductor
Semiconductor
Bad conductor
Conductor
What is applied on doors and windows etc.?
coaltar
A medium of transport of chemicals to and from the cells is
carbon dioxide
oxygen
water
hydrogen
____________in the air provides moisture for the growth of both plants and animals.
Nitrogen
Water vapour
Carbondioxide
Oxygen
