Chemistry-Periodic Classification of Elements [NSTSE (National Science Talent Search Exam- Unified Council) Class 10]: Questions 1 - 7 of 30

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Question 1

Periodic Classification of Elements

Question

MCQ▾

d – block elements is long term of periodic table are placed?

Choices

Choice (4)Response

a.

On the extreme right

b.

In the bottom

c.

In the middle

d.

On the extreme left

Question 2

Periodic Classification of Elements

Question

MCQ▾

An element having electronic configuration … is most electropositive?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 3

Periodic Classification of Elements

Question

MCQ▾

The ionic radius of a cation is always …

Choices

Choice (4)Response

a.

more than atomic radius

b.

equal to atomic radius

c.

less than atomic radius

d.

cannot to predicted

Question 4

Periodic Classification of Elements

Question

MCQ▾

In a period of periodic table, Metallic character decreases and the basic nature of their oxides … ?

Choices

Choice (4)Response

a.

Increases

b.

Does not change

c.

Decreases

d.

None of the above

Question 5

Periodic Classification of Elements

Question

MCQ▾

The elements which occupy their positions in periodic table just after the members of zero group are?

Choices

Choice (4)Response

a.

Alkali metals

b.

Metals

c.

Radioactive

d.

Gases

Question 6

Periodic Classification of Elements

Question

MCQ▾

The paramagnetic species among the following is?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 7

Periodic Classification of Elements

Question

MCQ▾

The elements with atomic numbers 10, 18,36, 54 and 86 are all?

Choices

Choice (4)Response

a.

Inert gases

b.

Light metal

c.

Halogens

d.

Rare earths

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