NSO Level 1- Science Olympiad (SOF) Class 9: Questions 631 - 637 of 1123

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Question number: 631

» Chemistry » Structure of the Atom

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MCQ▾

Question

The electric charge of nucleus is

Choices

Choice (4) Response

a.

Neutral

b.

Negative

c.

Positive

d.

None of the above

Question number: 632

» Biology » Tissues

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MCQ▾

Question

Survival of plants in terrestrial environment has been made possible by the presence of

Choices

Choice (4) Response

a.

Intercalary meristem

b.

Conducting Tissue

c.

Apical meristem

d.

Parenchymatous Tissue

Question number: 633

» Biology » Diversity of Living Organisms

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MCQ▾

Question

Which of the following organisms perform photosynthesis?

Choices

Choice (4) Response

a.

Fungi

b.

Plantae

c.

None of the above

d.

All of the above

Passage

Directions: The table shows the mass of different substances dissolved in 100g water to make a saturated solution at different temperatures. Depending on the data given below, answer questions below

The table shows the mass of different substances dissolved

The table shows the mass of different substances dissolved

Substance dissolved

10°C

20°C

30°C

40°C

50°C

Potassium Nitrate

21

32

62

106

167

Sodium Chloride

36

36

36

37

37

Potassium Chloride

35

35

40

46

54

Ammonium Chloride

24

37

41

55

66

Question number: 634 (1 of 3 Based on Passage) Show Passage

» Chemistry » The Nature of Matter

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MCQ▾

Question

Maulik cooled a saturated solution of Ammonium Chloride in 100g water at 50°C to 10°C. What will be his observation?

Choices

Choice (4) Response

a.

The solution changed to solid state

b.

54g salt is left behind

c.

No salt is left behind

d.

42g salt is left behind

Question number: 635 (2 of 3 Based on Passage) Show Passage

» Chemistry » The Nature of Matter

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MCQ▾

Question

Reena wants to make a saturated solution of Potassium nitrate at 30°C. How much salt should be dissolved in 50 g of water.

Choices

Choice (4) Response

a.

32 g

b.

62 g

c.

31 g

d.

42 g

Question number: 636 (3 of 3 Based on Passage) Show Passage

» Chemistry » The Nature of Matter

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MCQ▾

Question

The solubility of which salt does not change much with temperature.

Choices

Choice (4) Response

a.

Ammonium Chloride

b.

Potassium Nitrate

c.

Potassium Chloride

d.

Sodium Chloride

Question number: 637

» Biology » Improvement in Food Resources

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MCQ▾

Question

The Rabi season is from

Choices

Choice (4) Response

a.

June to October

b.

November to April

c.

April to June

d.

May to December

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