Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 1 - 6 of 144

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Question number: 1

» Chemistry » Metals & Non Metals

MCQ▾

Question

Which of the following elements are more reactive than hydrogen?

Hg, K, Ni, Co, Cu, Pt

Choices

Choice (4) Response

a.

K, Ni, Co

b.

Cu, Pt, Ni

c.

Hg, Co, Cu

d.

Hg, K, Pt

Question number: 2

» Chemistry » Metals & Non Metals

MCQ▾

Question

Which metal is the best conductor of electricity?

Choices

Choice (4) Response

a.

Sodium

b.

Gold

c.

Aluminum

d.

Silver

Question number: 3

» Chemistry » Metals & Non Metals

Match List-Ⅰ List-Ⅱ▾

Question

Match the following:
List-Ⅰ (Element) List-Ⅱ (Discoverer)

(A)

Titanium

(i)

Carl Wihhelm Scheele

(B)

Barium

(ii)

Daniel Rutherford

(C)

Polonium

(iii)

William Gregor

(D)

Nitrogen

(iv)

Marie Curie, Pierre Curie

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (i)
  • (iv)
  • (ii)

b.

  • (iv)
  • (ii)
  • (i)
  • (iii)

c.

  • (iii)
  • (iv)
  • (i)
  • (ii)

d.

  • (i)
  • (iii)
  • (ii)
  • (iv)

Question number: 4

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Which of the following is an example of a chemical change?

Choices

Choice (4) Response

a.

Sublimation

b.

Rusting of iron

c.

Evaporation of water

d.

Dissolution of salt in water

Question number: 5

» Chemistry » Structure of Atom

MCQ▾

Question

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

Choices

Choice (4) Response

a.

2, 8, 2

b.

2, 8

c.

2, 8, 1

d.

Question does not provide sufficient data or is vague

Question number: 6

» Chemistry » Structure of Atom

MCQ▾

Question

What are isotopes?

Choices

Choice (4) Response

a.

Elements having same atomic masses but different atomic numbers

b.

Elements having same atomic numbers but number of protons is different

c.

Elements having different atomic masses but same atomic numbers

d.

Elements having same atomic numbers as well as atomic masses

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