NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 405 - 409 of 2000

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Question number: 405

» Chemistry » Matter

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MCQ▾

Question

The shiny grey crystal of Iodine directly changes into violet colored vapor without melting. This process is called ________.

Choices

Choice (4) Response

a.

Melting

b.

Freezing

c.

Boiling

d.

Sublimation

Question number: 406

» Mathematics » Areas of Parallelograms and Triangles

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MCQ▾

Question

Two parallelograms are on the same base and between same parallels. The ratio of their areas is ________.

Choices

Choice (4) Response

a.

1: 1

b.

1: 2

c.

2: 1

d.

3: 1

Question number: 407

» Chemistry » Matter

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MCQ▾

Question

Which substance in the gaseous state is called a vapor?

Choices

Choice (4) Response

a.

Nitrogen

b.

Helium

c.

Carbon dioxide

d.

Sulphur

Question number: 408

» Mathematics » Areas of Parallelograms and Triangles

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MCQ▾

Question

The area of a trapezium is . One of the parallel sides is 5 cm, the other parallel side is 7 cm. The distance between its parallel sides is ________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 409

» Mathematics » Lines and Angles

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MCQ▾

Question

An exterior angle of a triangle is and one of the interior of opposite angles is . Then the other two angles of a triangle are

Triangle poly1 Triangle poly1: Polygon A, B, C Arc d Arc d: Semicircle through E and F Arc e Arc e: Semicircle through G and H Segment c Segment c: Segment [A, B] of Triangle poly1 Segment a Segment a: Segment [B, C] of Triangle poly1 Segment b Segment b: Segment [C, A] of Triangle poly1 Segment f Segment f: Segment [C, D] Point A A = (0.12,3.44) Point A A = (0.12,3.44) Point A A = (0.12,3.44) Point B B = (-3.72,0.22) Point B B = (-3.72,0.22) Point B B = (-3.72,0.22) Point C C = (0.82,0.22) Point C C = (0.82,0.22) Point C C = (0.82,0.22) 50â° text1 = “50â°” 100â° text1_1 = “100â°”

Image of a Triangle Having 100 Degree of Exterior Angle

Representing the image of a triangle having 100 degree of exterior angle

Choices

Choice (4) Response

a.

b.

c.

d.

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