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WorksheetsChemistry Chapter 6 Revision Quiz
Total questions: 13
Worksheet time: 10mins
For humans, water is necessary for:
I - digestion
II - excretion
III - agriculture
IV - cooling agent for industry
I and II only
I, II, III
II, III, IV
III, IV
All of the above
Plants can absorb water from the soil through (a)
Sea water is salty because it contains (a)
Water striders can walk on water because of_____
capillary action
adhesive force
surface tension
adhesive and cohesive forces
Anhydrous Cobalt (II) chloride is _____ in the absence of water.
white
blue
pink
green
Water cycle also known as (a)
The steps in complete water cycle are:
Evaporation - Condensation - Precipitation - Surface Runoff - Infiltration
Evaporation - Transpiration - Condensation - Precipitation - Surface runoff - Infiltration and percolation
Evaporation - Transpiration - Condensation - Precipitation - Infiltration and percolation - surface runoff
Evaporation - Transpiration - Condensation - Precipitation - surface runoff
None of the above is correct
The process of turning sea water into freshwater is called
(a)
Slaked lime is
acidic
alkaline
(a) is added during water disinfection to prevent tooth decay
The pH of groundwater that is from rainwater is most likely
6
7
8
9
Hard water or soft water is healthier?
(a)
Which of the following are ways to turn hard water into soft water?
I - ion exchange resin method
II - membrane separation method
III - reverse osmosis
IV - boiling
I and II
I, II and IV
I and IV
All of the above
