NSO Level 1- Science Olympiad (SOF) Class 10: Questions 811 - 814 of 986

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Question number: 811

» Light - Reflection and Refraction

Edit
MCQ▾

Question

Read the given statement and mark the correct option.

Statement 1: Magnification is defined as the ratio of the height of image to the height of object

Statement 2: The degree of convergence or divergence of light ray achieved by a lens is known as power of a lens

Choices

Choice (4)Response

a.

Only statement 1 is correct

b.

Statements 1 and 2 are correct

c.

Statements 1 and 2 are incorrect

d.

Only statement 2 is correct

Question number: 812

» Acids, Bases and Salts

Edit
MCQ▾

Question

What gas is evolved when reaction of Zinc and Dilute Sulphuric Acid takes place?

Choices

Choice (4)Response

a.

Hydrogen gas

b.

Oxygen gas

c.

Water

d.

None of the above

Question number: 813

» Acids, Bases and Salts

Edit
MCQ▾

Question

Which of the following is not a property of Neutral?

Choices

Choice (4)Response

a.

Texture of solution oily, sticky, watery, slippery

b.

Reactivity varies by Compound

c.

Smell like may burn nose

d.

Some Do Conductivity

Question number: 814

» Chemical Reactions and Equation

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match both the columns and mark the correct option using the coded given below.

List-Ⅰ (Column I)List-Ⅱ (Column II)

(A)

Copper nitrate

(i)

Nitrogen Dioxide

(B)

Heating washing soda

(ii)

Carbon dioxide

(C)

Heating ammonium dichromate

(iii)

Water vapor

(D)

Heating Sugar

(iv)

Carbon dioxide and Water

Choices

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

a.

  • (iv)
  • (iii)
  • (ii)
  • (i)

b.

  • (iii)
  • (iv)
  • (ii)
  • (i)

c.

  • (ii)
  • (i)
  • (iii)
  • (iv)

d.

  • (iii)
  • (i)
  • (ii)
  • (iv)

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