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7th CBSE
IMPORTANT
Earn 100

Which of the following types of water is bad conductor of electricity?

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Important Questions on Water

EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 5 - Water>PRACTICE QUESTIONS (COMPETITION WING)>Q 51
The pressure cooker reduces the cooking time because of:
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 5 - Water>PRACTICE QUESTIONS (COMPETITION WING)>Q 53
Two persons A and B got burns, one with boiling water at 100 °C and other due to steam at 100 °C, respectively. Which person is affected more?
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7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 5 - Water>PRACTICE QUESTIONS (COMPETITION WING)>Q 54
Aquatic animals are able to survive in water bodies like rivers and oceans during winter when the atmospheric temperature is-10 °C. This is because: 
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 5 - Water>PRACTICE QUESTIONS (COMPETITION WING)>Q 55
Which of the following elements is used for the purification of surface water to make free from germs so that it can be used for drinking purpose?
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7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 5 - Water>PRACTICE QUESTIONS (COMPETITION WING)>Q 56
Which of the following is the application of the highest specific heat capacity of water?
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 5 - Water>PRACTICE QUESTIONS (COMPETITION WING)>Q 57
Water containing salt X of a divalent metal, when treated with compound Y gives much lather soap. Insoluble compounds MgCO3 and salt of a monovalent metal sulphate are formed. Identify X and Y respectively.
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 5 - Water>PRACTICE QUESTIONS (COMPETITION WING)>Q 58
The amount of energy required to increase the temperature of X g of water by 10 °C is found to be 15 cal. Calculate X.
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 5 - Water>PRACTICE QUESTIONS (COMPETITION WING)>Q 59
The water obtained by ion-exhange process is: