CBSE Class-6 Science: Questions 78 - 82 of 318

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Question number: 78

» Getting to Know Plants » Root » Types of Roots

MCQ▾

Question

Straight tapering root, which grows vertically down into the soil, is called as:

Choices

Choice (4) Response

a.

Tap roots

b.

Creepers

c.

Fibrous roots

d.

All of the above

Question number: 79

» Separation of Substances » Water and Its Properties » Saturated Solution

MCQ▾

Question

Effect of temperature on the solubility of a saturated solution is:

Choices

Choice (4) Response

a.

Solubility of a saturated solution increases with increase in temperature and decreases with decrease in temperature

b.

Solubility of a saturated solution has no effect with temperature

c.

Solubility of a saturated solution decreases with increase in temperature and increases with decrease in temperature

d.

All of the above

Question number: 80

» Separation of Substances » Water and Its Properties » Can Water Dissolve Any Amount of a Substance?

MCQ▾

Question

A given quantity of water can dissolve

Choices

Choice (4) Response

a.

Maximum amount of a substance

b.

Maximum amount of substance (at a particular temperature)

c.

Minimum amount of a substance

d.

Question does not provide sufficient data or is vague

Question number: 81

» Separation of Substances » Methods of Separation » Sieving

MCQ▾

Question

Method of separating a mixture by using sieve is called as:

Choices

Choice (4) Response

a.

Winnowing

b.

Sieving

c.

Threshing

d.

None of the above

Question number: 82

» Separation of Substances » Water and Its Properties » Saturated Solution

MCQ▾

Question

A saturated solution is defined as:

Choices

Choice (4) Response

a.

A saturated solution contains the maximum amount of substance which can be dissolved in it at that temperature.

b.

Solution in which more substance can be dissolved at that temperature

c.

A solution in which no more substance can be dissolved at that temperature

d.

Both a. and c. are correct

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