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

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

A) 8.4 moles
B) 0.6 mole
C) 42.00 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) 1.7
B) 0.27
C) 2.7
D) 6.0

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

A) Presence of heavy metal ions
B) Increase in the level of sediment
C) Reduction in the amount of dissolved oxygen
D) Scarcity of food in water

A) Calcium trioxocarbonate (IV)
B) Calcium tetraoxosulphate (VI)
C) Calcium hydroxide
D) Calcium hydrogen trioxocarbonate (IV)

A) White to green
B) Blue to pink
C) Blue to white
D) White to red

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

A) CaCl₂.2H₂₀
B) MgSO₄.7H₂O
C) Na₂SO₄.10H₂O
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) Animal hide
B) Wood
C) Plastics
D) Paper

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

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

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

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

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

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

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