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Water

This standardized achievement test in chemistry covers water cycle, water properties, water purification, hard and soft water, and water in the human body. Suitable for CBSE, ICSE and other board students of class 6, and useful for competition and olympiad preparation.

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following processes is not responsible for increasing the water vapour content in the air?

  1. Transpiration
  2. Evaporation
  3. Condensation
  4. Respiration
  5. Vapourisation
Question 2 Multiple Choice (Single Answer)

Recharging of ground water by allowing the rain water to penetrate the soil is called as

  1. water level
  2. percolation
  3. drip irrigation
  4. water irrigation
  5. conservation
Question 3 Multiple Choice (Single Answer)

Where does the energy that powers water cycle does come from?

  1. Plants
  2. Animals
  3. Industries
  4. Sun
  5. Oceans
Question 4 Multiple Choice (Single Answer)

_______ is the drops of water that form on cool surfaces, during the night.

  1. Hail
  2. Snow
  3. Dew
  4. Sleet
  5. Rain
Question 5 Multiple Choice (Single Answer)

The main source of water for inland lakes is called

  1. snow
  2. underground water
  3. sea water
  4. river
  5. rain
Question 6 Multiple Choice (Single Answer)

Which of following is/are the source(s) of soft water?

  1. Sea
  2. Rivers
  3. Rain
  4. Wells
  5. Springs
Question 7 Multiple Choice (Single Answer)

What is the correct term for moisture that falls to the ground from the clouds?

  1. Condensation
  2. Precipitation
  3. Transpiration
  4. Evaporation
  5. Filtration
Question 8 Multiple Choice (Single Answer)

Which of the following chemicals is used for removal of suspended impurities by sedimentation?

  1. Washing soda
  2. Bleaching powder
  3. Alum
  4. Potassium permanganate
  5. Ozone
Question 9 Multiple Choice (Single Answer)

Which of the following substances is present in temporary hard water?

  1. Calcium chloride
  2. Magnesium sulphate
  3. Calcium bicarbonate
  4. Magnesium chloride
  5. Calcium sulphate
Question 10 Multiple Choice (Single Answer)

The density of water is

  1. 1.26 gm/cm3
  2. 1 gm/cm3
  3. 13 .55 gm/cm3
  4. 0.711 gm/cm3
  5. 1.049 gm/cm3
Question 11 Multiple Choice (Single Answer)

Why is it important for us to have regular intake of water in our body?

  1. Water has lots of vitamins and proteins.
  2. Water contains oxygen.
  3. Water gives us energy.
  4. Water is evaporated by our body.
  5. Water is condensed by our body.
Question 12 Multiple Choice (Single Answer)

What is water cycle?

  1. It is a device used to recycle water in industry.
  2. It is used in water treatment plants.
  3. It is a continuous process for circulation of water in nature.
  4. It is a cycle used for doing exercises in the morning.
  5. It is a type of water sport.
Question 13 Multiple Choice (Single Answer)

The pH of pure water is

  1. 12
  2. 8
  3. 7
  4. 6
  5. 3
Question 14 Multiple Choice (Single Answer)

Which of the following is potable water?

  1. A glass of drinking water
  2. Water which kept in a large open pot
  3. Sea water
  4. Water with bacteria and chemicals
  5. Water of a pond
Question 15 Multiple Choice (Single Answer)

The percentage of water in the human body is

  1. 47%
  2. 30%
  3. 70%
  4. 85%
  5. 73%
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