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