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