NSO Level 1- Science Olympiad (SOF) Class 10: Questions 175 - 181 of 986

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Passage

Directions: Read the following passage and answer the question.

The X compound are made up carbon, hydrogen and oxygen generally. X compounds contain at least one bond.

Compounds made up of carbon and hydrogen only. Are known as Y.

The figure Z shown the Y structure.

The Figure Z Shown the Y Structure

Question 175 (1 of 3 Based on Passage)

Question

MCQ▾

Identify the Y?

Choices

Choice (4)Response

a.

Ethane

b.

Methane

c.

Hydrocarbons

d.

All of the above

Question 176 (2 of 3 Based on Passage)

Question

MCQ▾

Identify the X?

Choices

Choice (4)Response

a.

Methane

b.

Inorganic compound

c.

Organic compound

d.

Ethane

Question 177 (3 of 3 Based on Passage)

Question

MCQ▾

What is Z?

Choices

Choice (4)Response

a.

Butane

b.

Propane

c.

Ethyne

d.

None of the above

Question 178

Question

MCQ▾

In Modern periodic table, which elements has the highest electron affinity?

Choices

Choice (4)Response

a.

Cl

b.

Ne

c.

F

d.

Hg

Question 179

Question

MCQ▾

Given below are the events of photosynthesis. Identify which of the following is/are not correct?

Choices

Choice (4)Response

a.

Biosynthetic phase is light independent phase.

b.

Photochemical phase include light evolved, oxygen absorption

c.

Photochemical phase is also called light reaction

d.

Biosynthetic phase also called dark reaction

Question 180

Question

MCQ▾

Which is not correct for covalent compounds?

Choices

Choice (4)Response

a.

These compounds are molecular in nature

b.

These compounds are poor conductor of electricity

c.

These are insoluble in water and soluble in benzene, kerosene and petrol etc.

d.

None of the above

Question 181

Question

Matching-Pair▾

Find matching pair:

Choices

Choice (4)Response

a.

Tomato

Lxcopersican esculentumz

b.

Brinjal

Ricinus communis

c.

Shoe flower

Hibiscus rosasinensis

d.

Both c. and a. are correct

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