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9th ICSE
IMPORTANT
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How is air dissolved in water different from ordinary air?

Important Questions on Water

MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 3 - Water>EXERCISE 3(A)>Q 14

Identify A, B, C, and D; the first one is done for you.

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MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 3 - Water>EXERCISE 3(A)>Q 15
Explain why boiled water or distilled water tastes flat?
MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 3 - Water>EXERCISE 3(A)>Q 15
Explain why ice at zero degree centigrade has a greater cooling effect than water at 0 0C.
MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 3 - Water>EXERCISE 3(A)>Q 15
Explain why burns caused by steam are more severe than burns caused by boiling water? 
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9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 3 - Water>EXERCISE 3(A)>Q 15
Explain why rivers and lakes do not freeze easily?
MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 3 - Water>EXERCISE 3(A)>Q 15
Explain why air dissolved in water contains a higher proportion of oxygen?
MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 3 - Water>EXERCISE 3(A)>Q 15
Explain why If distilled water is kept in a sealed bottle for a long time, it leaves etchings on the glass?
MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 3 - Water>EXERCISE 3(A)>Q 15
Explain why rainwater does not leave behind concentric rings when boiled?