NSO Level 1- Science Olympiad (SOF) Class 10: Questions 569 - 573 of 986

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Question number: 569

» Carbon and Its Componds

Edit
MCQ▾

Question

When a series of atoms is connected to form a loop or ring, it is called

Choices

Choice (4) Response

a.

Benzene

b.

Cyclic

c.

Propane

d.

Isomers

Question number: 570

» Chemical Reactions and Equation

Edit
MCQ▾

Question

Read the given statements and mark the correct option.

Statement 1: Corrosion is the process in which metals breakdown gradually by the air, moisture or a chemical

Statement 2: Every year enormous/large amount of money is spent to replace damaged iron due to Corrosion.

Choices

Choice (4) Response

a.

Statements 1 and 2 are false.

b.

Only Statement 2 is true

c.

Only Statement 1 is true

d.

Statements 1 and 2 are true.

Question number: 571

» Sources of Energy

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MCQ▾

Question

Boiling water reactor and pressurized water reactors are types of

Choices

Choice (4) Response

a.

Biogas reactor

b.

OTEC

c.

Nuclear reactor

d.

Solar reactor

Question number: 572

» Our Environment and Its Management

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match column I and column II and select the correct option from the codes given below.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Primary Consumer

(i)

Antelope

(B)

Tertiary Consumers

(ii)

Hawk

(C)

Parasitism

(iii)

Dogs

(D)

Secondary consumers

(iv)

Spider

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (iv)
  • (ii)
  • (i)

b.

  • (i)
  • (ii)
  • (iii)
  • (iv)

c.

  • (iii)
  • (ii)
  • (i)
  • (iv)

d.

  • (iv)
  • (i)
  • (ii)
  • (iii)

Question number: 573

» Metals and Non - Metals

Edit
MCQ▾

Question

Electrolysis is used for the extraction of metal ore from which metals?

Choices

Choice (4) Response

a.

Sodium

b.

Zinc

c.

Potassium

d.

All a. , b. and c. are correct