NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 893 - 900 of 1998

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Question 893

Question MCQ▾

Which one of the following does not show Tyndall effect?

Choices

Choice (4)Response

a.

Milk

b.

Blood

c.

Sugar solution

d.

Emulsion

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Question 894

Question MCQ▾

What do we observe when colloidal solution is observed under ultramicroscope?

Choices

Choice (4)Response

a.

Light scattered by colloidal particles

b.

Size of colloidal particles

c.

Shape of colloidal particles

d.

Relative size of colloidal particles

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Question 895

Question MCQ▾

Which of the following is not double membranous organelles

Choices

Choice (4)Response

a.

Mitochondria

b.

Nucleus

c.

Lysosomes

d.

Chloroplast

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Question 896

Question MCQ▾

The diameter of colloidal particles range from

Choices

Choice (4)Response

a.

10-9m to 10-12 m

b.

103 m to 10-3 m

c.

10-3 m to 10-6 m

d.

10-6 m to 10-9 m

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Question 897

Question MCQ▾

If 7,5, 9 and 2 occur with frequencies 3,1, 4 and 2 respectively, then the arithmetic mean is

Choices

Choice (4)Response

a.

10

b.

5.6

c.

2.3

d.

6.6

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Question 898

Question MCQ▾

The rational number between and is:

Choices

Choice (4)Response

a.

b.

c.

0.25

d.

All a., b. and c. are correct

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Question 899

Question MCQ▾

If the arithmetic mean of 6, 8,5, 7, x and 4 is 7, then x is

Choices

Choice (4)Response

a.

8

b.

4

c.

6

d.

12

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Question 900

Question MCQ▾

The product of is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit