NSO Level 1- Science Olympiad (SOF) Class 10: Questions 316 - 321 of 986

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Question number: 316

» Periodic Classification of Elements

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MCQ▾

Question

For Modern periodic table, in period, the first elements of the periods is

Choices

Choice (4) Response

a.

P

b.

Na

c.

Mg

d.

Si

Question number: 317

» Periodic Classification of Elements

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MCQ▾

Question

Read the given statements and mark the correct option.

Statement 1: Astatine is an atom to attract electrons to itself

Statement 2: Rubidium have low reactive at standard temperature and pressure

Choices

Choice (4) Response

a.

Statements 1 and 2 are incorrect

b.

Only statement 2 is correct

c.

Statements 1 and 2 are correct

d.

Only statement 1 is correct

Question number: 318

» Reproduction in Organisms

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MCQ▾

Question

What does this figure show?

Figure shows the cell

Figure Shows the Cell

Figure shows the cell

Choices

Choice (4) Response

a.

Germination of pollen grains

b.

Transfer of pollen grains to stigma

c.

Fertilization of gametes

d.

Development of zygote

Question number: 319

» Heredity and Evolution

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MCQ▾

Question

Choose correct option for below definition

An individual or species that was alive in the past, that two or more different groups of organisms alive today are descended from

Choices

Choice (4) Response

a.

Adaptation

b.

Ancestor

c.

Gene Flow

d.

All of the above

Question number: 320

» Periodic Classification of Elements

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MCQ▾

Question

“The properties of the elements are a periodic function of their atomic weights. ” Statement was said by

Choices

Choice (4) Response

a.

Julius Lothar Meyer

b.

Henry Moseley

c.

Dmitri Mendeleev

d.

Lewis Reeve Gibbes

Question number: 321

» Periodic Classification of Elements

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MCQ▾

Question

Read the given statements and mark the correct option.

Statement 1: According to Newland’s Law of Octaves “the elements are arranged in such a way that the eighth element starting from a given one has properties which are a repetition of those of the first if arranged in order of increasing atomic weight like the. Eight note of musical scale. “

Statement 2: Mendeleev arranged 60 elements known at that time in the periodic table

Choices

Choice (4) Response

a.

Statements 1 and 2 are correct

b.

Statements 1 and 2 are incorrect

c.

Only statement 1 is correct

d.

Only statement 2 is correct

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