NSO Level 1- Science Olympiad (SOF) Class 10: Questions 124 - 128 of 986

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Question number: 124

» Chemical Reactions and Equation

Edit
MCQ▾

Question

What kind of metal doesn’t rust?

Choices

Choice (4) Response

a.

Gold

b.

Silver

c.

Both a. and b. are correct

d.

None of the above

Question number: 125

» Chemical Reactions and Equation

Edit
Assertion-Reason▾

Question

Assertion (Ꭺ)

Precipitation reaction produces insoluble salt

Reason (Ꭱ)

Cation and anions in the aqueous solution combine to form an insoluble ionic solid

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 126

» Mental Ability

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MCQ▾

Question

In a dice a, b, c and d are written on the adjacent faces, in a clockwise order and e and f at the top and bottom. When c is at the top, what will be at the bottom?

Diagram shows a dice a, b, c and d on the adjacent faces

Diagram Shows a Dice a, B, C and D on the Adjacent Faces

This diagram shows a dice a, b, c and d on the adjacent faces

Choices

Choice (4) Response

a.

a

b.

d

c.

b

d.

c

Question number: 127

» Mental Ability

Edit
MCQ▾

Question

If the side of a square be increased by 4 cms. The area increases by 60 sq. cms. The side of the square is ________.

Choices

Choice (4) Response

a.

5.0 cm

b.

5.7 cm

c.

5.8 cm

d.

5.5 cm

Question number: 128

» Mental Ability

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MCQ▾

Question

P takes 8 days less than the time taken by Q to finish a piece of work. If both P and Q together can finish it in 3 days, find the time taken by Q to finish the work.

Choices

Choice (4) Response

a.

12 days

b.

14 days

c.

8 days

d.

10 days