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