chlorine
iron
iodine
bromine
Sensitivity of the human eye is max. in the
Setting of plaster of paris involves
Should cars have bumpers that collapse under impact
Silica gel is a
Silver halides are used in photographic plates as they are
Silver halides are used in photographic plates because they are
Slag is a name given for
Smoke is formed due to
Soap is a mixture of sodium or potassium salts of
Soap is prepared by boiling caustic soda with
