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