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