A) 15g
B) 20g
C) 10g
D) 40g

A) 1.0mole
B) 5.12mole
C) 0.5mole
D) 32.0mole

A) 8.4 moles
B) 84 moles
C) 0.6 mole
D) 42.00 moles

A) 0.88 mol/dm³
B) 1.14 mol/dm³
C) 11.42 mol/dm³
D) 8.80 mol/dm³

A) 6.0
B) 0.27
C) 1.7
D) 2.7

A) Coagulate
B) Not sedimentate
C) Not scatter light rays
D) Dialyse

A) Increase in the level of sediment
B) Scarcity of food in water
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) Blue to pink
B) White to green
C) Blue to white
D) White to red

A) Sodium tetraoxosulphate (VI)
B) Aluminium tetraoxosulphate (VI)
C) Calcium tetraoxosulphate (VI)
D) Copper tetraoxosulphate (VI)

A) MgSO₄.7H₂O
B) CaCl₂.2H₂₀
C) Na₂CO₃.10H₂O
D) Na₂SO₄.10H₂O

A) Exposure of a body of water to ultraviolet rays
B) Addition of a measured quantity of chlorine to water
C) Discharge of industrial effluents into water ways.
D) Passage of river water through a sand bed

A) Animal hide
B) Wood
C) Paper
D) Plastics

A) Passing of ships through the area
B) Pouring of organic solvent
C) Pouring of detergents
D) Evaporation

A) Saturated
B) Hydrated
C) Unsaturated
D) Super saturated

A) Chlorination
B) Aeration
C) Passing over treated charcoal
D) The use of an ion -exchange resin

A) Calcium trioxocarbonate (IV)
B) Sodium hydroxide
C) Calcium hydrogen trioxocarbonate (IV)
D) Sodium aluminium trioxo -silicate (IV)

A) Pipe borne water
B) Distilled water
C) Chlorinated water
D) Spring water

A) Solute
B) Suspensions
C) Solvent
D) Solution

A) Colloids
B) Universal solvent
C) Concentration
D) Dispersion medium