NSO Level 1- Science Olympiad (SOF) Class 10: Questions 178 - 183 of 986

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Question number: 178

» Periodic Classification of Elements

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

Cl

b.

Ne

c.

F

d.

Hg

Question number: 179

» Life Processes

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MCQ▾

Question

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 number: 180

» Carbon and Its Componds

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MCQ▾

Question

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 number: 181

» Reproduction in Organisms

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Matching-Pair▾

Question

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

Question number: 182

» Reproduction in Organisms

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MCQ▾

Question

Obtaining new plants from the parts (such as stems, roots and leaves) of an old plant, without any type of involvement of sex organs is called

Choices

Choice (4) Response

a.

Fertilization

b.

Vegetative reproduction

c.

Puberty

d.

Pollination

Question number: 183

» Reproduction in Organisms

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MCQ▾

Question

An ovule consists of a megasporangium surrounded by one or two layers of tissue called

Choices

Choice (4) Response

a.

Megasporangium

b.

Integuments

c.

Ovule

d.

None of the above