A) 10g B) 20g C) 15g D) 40g
A) 1.0mole B) 5.12mole C) 32.0mole D) 0.5mole
A) 8.4 moles B) 0.6 mole C) 84 moles D) 42.00 moles
A) 1.14 mol/dm³ B) 11.42 mol/dm³ C) 8.80 mol/dm³ D) 0.88 mol/dm³
A) 2.7 B) 0.27 C) 1.7 D) 6.0
A) Dialyse B) Coagulate C) Not sedimentate D) Not scatter light rays
A) Scarcity of food in water B) Presence of heavy metal ions C) Reduction in the amount of dissolved oxygen D) Increase in the level of sediment
A) Calcium hydrogen trioxocarbonate (IV) B) Calcium trioxocarbonate (IV) C) Calcium tetraoxosulphate (VI) D) Calcium hydroxide
A) White to green B) Blue to pink C) Blue to white D) White to red
A) Calcium tetraoxosulphate (VI) B) Copper tetraoxosulphate (VI) C) Aluminium tetraoxosulphate (VI) D) Sodium tetraoxosulphate (VI)
A) MgSO4.7H2O B) CaCl2.2H20 C) Na2CO3.10H2O D) Na2SO4.10H2O
A) Addition of a measured quantity of chlorine to water B) Discharge of industrial effluents into water ways. C) Exposure of a body of water to ultraviolet rays D) Passage of river water through a sand bed
A) Paper B) Wood C) Plastics D) Animal hide
A) Evaporation B) Passing of ships through the area C) Pouring of detergents D) Pouring of organic solvent
A) Hydrated B) Super saturated C) Saturated D) Unsaturated
A) Aeration B) Chlorination C) The use of an ion -exchange resin D) Passing over treated charcoal
A) Sodium hydroxide B) Calcium trioxocarbonate (IV) C) Calcium hydrogen trioxocarbonate (IV) D) Sodium aluminium trioxo -silicate (IV)
A) Chlorinated water B) Spring water C) Distilled water D) Pipe borne water
A) Suspensions B) Solvent C) Solution D) Solute
A) Colloids B) Universal solvent C) Dispersion medium D) Concentration |