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