S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 6

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9th ICSE

IMPORTANT

Earn 100

What is meant by a saturated solution?

Important Questions on Water

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9th ICSE

IMPORTANT

S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 6

The solubility of

{KNO}_{3}

, at

50 ° C

is

86 g

. What does this statement mean?

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IMPORTANT

S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 6

The green ferrous sulphate crystals are said to be hydrated having the formula

{FeSO}_{4} . 7 H_{2} O

. What do you mean by the term ‘hydrated’?

HARD

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S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 6

Hydrated salts, when heated in a test tube give drops of a liquid on the upper part of the test tube. How will you prove that this liquid is water?

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S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 7

When a piece of the calcium is dropped into a beaker of cold water, a vigorous reaction takes place and the calcium gradually disappears and a white suspension is formed.

Write down the equation for this reaction.

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S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 7

When a piece of the calcium is dropped into a beaker of cold water, a vigorous reaction takes place and the calcium gradually disappears and a white suspension is formed.
Why does the solution become cloudy?

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IMPORTANT

S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 7

When a piece of the calcium is dropped into a beaker of cold water, a vigorous reaction takes place and the calcium gradually disappears and a white suspension is formed.
On filtering, a clearing solution is obtained. What is the name of this clear solution?

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9th ICSE

IMPORTANT

S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 7

When a piece of the calcium is dropped into a beaker of cold water, a vigorous reaction takes place and the calcium gradually disappears and a white suspension is formed.
What happens when