NSO Level 1- Science Olympiad (SOF) Class 10: Questions 654 - 661 of 1497

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Question 654

Question MCQ▾

Which of the following is formed when nitric acid oxidizes sulphur?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 655

Question MCQ▾

Which of the following types of ores are subjected to roasting?

Choices

Choice (4)Response

a.

Carbonate ores

b.

Oxide ores

c.

Sulphide ores

d.

Silicate ores

Edit

Question 656

Question MCQ▾

… Gas is liberated when copper is treated with concentrated

Choices

Choice (4)Response

a.

Hydrogen Sulphide

b.

Sulphur dioxide

c.

Sulphur trioxide

d.

Hydrogen

Edit

Question 657

Question MCQ▾

Which gas is present in brisk effervescence, when carboxylic acid is treated with

Choices

Choice (4)Response

a.

Oxygen gas

b.

c.

Benzene

d.

Butane

Edit

Question 658

Question MCQ▾

… number of carbon atoms form a spherical molecule of Buckminster fullerene?

Choices

Choice (4)Response

a.

90

b.

40

c.

60

d.

80

Edit

Question 659

Question MCQ▾

Vinegar is manufactured by mixing … percentage of acetic acid in water?

Choices

Choice (4)Response

a.

8%

b.

25%

c.

40%

d.

50%

Edit

Question 660

Question MCQ▾

Select the correct order from the following regarding their abundance in earth crust?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 661

Question MCQ▾

Which of the following is anionic part of a synthetic detergent?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit