NSO Level 1- Science Olympiad (SOF) Class 10: Questions 584 - 587 of 986

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Question number: 584

» Metals and Non - Metals

Edit
MCQ▾

Question

Iron sulphate was taken in two test tubes. Zinc and aluminum were added in these tubes. After reaction colour of Zinc and aluminum is

Choices

Choice (4) Response

a.

Blue and Green

b.

Light green and reddish brown

c.

Colorless and Colorless

d.

None of the above

Question number: 585

» Acids, Bases and Salts

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MCQ▾

Question

Read the paragraph and Answer the question.

On During electrolysis chlorine and dry slaked lime. it gives Bleaching powder. Bleaching powder is used for disinfecting drinking water to make it free of germs, as an oxidizing agent in many chemical industries etc.

Ratio of molecules in dry slaked lime : Bleaching powder is

Choices

Choice (4) Response

a.

b.

1: 1

c.

2: 2

d.

1: 2

Question number: 586

» Our Environment and Its Management

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match the traditional water harvesting system pf column I with the corresponding states in column II and select the correct option from the given below.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Naula

(i)

Uttaranchal

(B)

Eri

(ii)

Himachal Pradesh

(C)

Khatri

(iii)

Tamil Nadu

(D)

zabo

(iv)

Nagaland

Choices

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

a.

  • (i)
  • (ii)
  • (iii)
  • (iv)

b.

  • (i)
  • (iv)
  • (iii)
  • (ii)

c.

  • (i)
  • (iii)
  • (ii)
  • (iv)

d.

  • (i)
  • (iii)
  • (iv)
  • (ii)

Question number: 587

» Magnetic Effects of Electric Current

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MCQ▾

Question

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

Table shows the match list

Table shows the match list

Column I

Column II

(p)

Bar Magnet

(i)

Figure of the different magnet 1

Figure of the Different Magnet 1

Figure of the different magnet

(q)

Horse shoe magnet

(ii)

Figure of the different magnet 2

Figure of the Different Magnet 2

Figure of the different magnet

(r)

Solenoid

(iii)

Figure of the different magnet 3

Figure of the Different Magnet 3

Figure of the different magnet

(s)

Electrical generator

(iv)

Figure of the different magnet 4

Figure of the Different Magnet 4

Figure of the different magnet

(v)

Figure of the different magnet 5

Figure of the Different Magnet 5

Figure of the different magnet

Choices

Choice (4) Response

a.

(p) - (ii), (q) - (iv), (r) - (iii), (s) - (v)

b.

(p) - (v), (q) - (iii), (r) - (iv), (s) - (ii)

c.

(p) - (ii), (q) - (v), (r) - (iii), (s) - (iv)

d.

(p) - (iv), (q) - (iii), (r) - (ii), (s) - (i)