NSO Level 1- Science Olympiad (SOF) Class 10: Questions 511 - 515 of 986

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Passage

Read the following passage and answer the question.

The law was given by Henry Moseley in it states,

“Properties of the elements are the periodic function of their atomic numbers”.

The trends observed in some important properties of the elements in moving down the group (from top to bottom of the table) and across a period (from left to right in a period) are Valency, atomic size, metallic and non-metallic, electronegativity.

Question number: 511 (1 of 3 Based on Passage) Show Passage

» Periodic Classification of Elements

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MCQ▾

Question

Valency is

Choices

Choice (4) Response

a.

The combining capacity of the atom of an element with atoms of other elements in order to acquire the stable configuration.

b.

The relative tendency of an atom to attract the shared electron pair of electrons towards itself

c.

In a period all the elements contain the same number of shells

d.

None of the above

Question number: 512 (2 of 3 Based on Passage) Show Passage

» Periodic Classification of Elements

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MCQ▾

Question

Which is correct for metallic and non-metallic properties?

Choices

Choice (4) Response

a.

In a period, all the elements contain the same number of shells

b.

The relative tendency of an atom to attract the shared electron pair of electrons towards itself

c.

In a period from left to right metallic nature, decreases while non-metallic character increases.

d.

Question does not provide sufficient data or is vague

Question number: 513 (3 of 3 Based on Passage) Show Passage

» Periodic Classification of Elements

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MCQ▾

Question

“Properties of the elements are the periodic function of their atomic numbers. ” The law is

Choices

Choice (4) Response

a.

Atomic law

b.

Law of Octaves

c.

The periodic law

d.

Modern periodic Law

Question number: 514

» Human Eye and Colourful World

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MCQ▾

Question

Anger signs are made in red colour because

Choices

Choice (4) Response

a.

More scattered by fog and smoke

b.

Least wavelength compare to blue colour

c.

Least scattered colour

d.

All of the above

Question number: 515

» Life Processes

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MCQ▾

Question

Fill in the blank correct answer.

________ triggers the release of stored sugars, increasing the concentration of Glucose in your blood.

Choices

Choice (4) Response

a.

Glucagon

b.

Insulin

c.

Somatostatin

d.

Question does not provide sufficient data or is vague

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