Question types

Water question types

78 questions across 6 question groups — pick any mix to generate a CHEMISTRY paper with step-by-step answer keys.

78
Questions
6
Question groups
5
Question types
Sample Questions

Water questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Match the statements in column $A$ with that in column $B$
Column $A$ Column $B$
$(a)$ deliquescent substance $(1)$ sodium bicarbonate
$(b)$ hygroscopic substance $(2)$ magnesium chloride
$(c)$ efflorestance substance $(3)$ conc. sulphuric acid
$(d)$ substance causing temporary hardness $(4)$ washing soda
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Q 24MCQ1 Mark
Colloids have the particle size range between
  • $10^{-7}$ to $10^{-10} m$
  • B
    $10^{-10}$ to $10^{-12} m$
  • C
    $10^{-7}$ to $10^{-5} m$
  • D
    $10^{-12}$ to $10^{-15} m$

Answer: A.

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Q 25MCQ1 Mark
The ultimate source of all water on the earth is
  • A
    oceans and seas
  • B
    spring and wells
  • C
    rivers and lakes
  • rain

Answer: D.

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Q 26MCQ1 Mark
Temporary hardness of water can be removed by
  • A
    filtering
  • boiling
  • C
    loading
  • D
    none of the above

Answer: B.

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Q 27MCQ1 Mark
Two gases found dissolved in natural water are
  • oxygen and carbon dioxide
  • B
    hydrogen and oxygen
  • C
    sulphur dioxide and hydrogen
  • D
    chlorine and ammonia

Answer: A.

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