NSO Level 1- Science Olympiad (SOF) Class 10: Questions 553 - 557 of 986

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Question number: 553

» Carbon and Its Componds

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match both the column and mark the correct option from the coded given below.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Diamonds

(i)

Hardest

(B)

Carbon Monoxide

(ii)

Black, shiny

(C)

Graphite

(iii)

Colorless and odorless

(D)

Carbon Dioxide

(iv)

Cannot test it

Choices

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

a.

  • (i)
  • (iv)
  • (iii)
  • (ii)

b.

  • (i)
  • (iii)
  • (ii)
  • (iv)

c.

  • (iii)
  • (iv)
  • (i)
  • (ii)

d.

  • (i)
  • (iv)
  • (ii)
  • (iii)

Passage

Directional: Read the passage carefully and the answer the below two question

An object is placed at a distance of in front of a concave mirror. It forms a real image four times larger than object.

Question number: 554 (1 of 2 Based on Passage) Show Passage

» Light - Reflection and Refraction

Edit
MCQ▾

Question

Which is a formula use for Magnification?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 555 (2 of 2 Based on Passage) Show Passage

» Light - Reflection and Refraction

Edit
MCQ▾

Question

What is distance of the image from the mirror?

Choices

Choice (4) Response

a.

40 cm

b.

58 cm

c.

42 cm

d.

48 cm

Question number: 556

» Magnetic Effects of Electric Current

Edit
MCQ▾

Question

If the key in the arrangement as shown below is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are

The horizontal plane ABCD

The Horizontal Plane ABCD

The horizontal plane ABCD

Choices

Choice (4) Response

a.

Straight lines parallel to each other

b.

Elliptical in shape

c.

Concentric circles near the point O but of elliptical shapes as we go away from it

d.

Concentric circles

Question number: 557

» Chemical Reactions and Equation

Edit
MCQ▾

Question

Read the given statements and mark the correct option.

Statement 1: Native state means free or uncombined state. These metals are non-reactive in nature.

Statement 2: The first choice is to use noble metals such as copper. They are most resistant to corrosion.

Choices

Choice (4) Response

a.

Only Statement 2 is true

b.

Only Statement 1 is true

c.

Statements 1 and 2 are true

d.

Statements 1 and 2 are false