Chemistry-Structure of Atom [NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension]: Questions 1 - 5 of 34

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Question 1

Structure of Atom
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Question

MCQ▾

Which of the following is the correct electronic configuration of Neon?

Choices

Choice (4)Response
a.2,8, 1
b.2,8, 2
c.2,8
d.All of the above

Question 2

Structure of Atom
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Question

MCQ▾

What are isotopes?

Choices

Choice (4)Response
a.Elements having different atomic masses but same atomic numbers
b.Elements having same atomic numbers as well as atomic masses
c.Elements having same atomic numbers but number of protons is different
d.Elements having same atomic masses but different atomic numbers

Question 3

Structure of Atom
Edit

Question

MCQ▾

Calculate the mass of 1 mole of NaCl. (Given atomic mass of Na-23, Cl- 35.5)

Choices

Choice (4)Response
a.11.2 gms
b.56 gms
c.11.8 gms
d.58.5 gms

Question 4

Structure of Atom
Edit

Question

MCQ▾

Consider the information given below regarding atomic radius.

I. It is the half of the distance between the centers of two atoms of an element that are just touching each other.

II. It decreases across a period and increases on going down a group.

Which of the above statement (s) is/are correct?

Choices

Choice (4)Response
a.Only I
b.I and II
c.Only II
d.Question does not provide sufficient data or is vague

Question 5

Structure of Atom
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Question

Match List-Ⅰ List-Ⅱ▾

Match the following:

List-ⅠList-Ⅱ

(A)

Mild steel

(i)

Non-metallic

(B)

Natural gas

(ii)

Energy resource

(C)

Mica

(iii)

Non-ferrous

(D)

Nickel

(iv)

Ferrous

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)
a.
  • (iv)
  • (iii)
  • (ii)
  • (i)
b.
  • (iv)
  • (i)
  • (iii)
  • (ii)
c.
  • (i)
  • (iii)
  • (ii)
  • (iv)
d.
  • (iv)
  • (ii)
  • (i)
  • (iii)