Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 37 - 42 of 144

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Question number: 37

» Chemistry » Structure of Atom

MCQ▾

Question

The element with atomic number 9, 17, 35, 53 and 85 are all

Choices

Choice (4) Response

a.

light metals

b.

noble gases

c.

halogens

d.

heavy metals

Question number: 38

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Consider the following statements

I. Pyrolusite is the ore of zinc.

II. Calamine is the ore of manganese.

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

Choices

Choice (4) Response

a.

I and II

b.

I nor II

c.

Only I

d.

Only II

Question number: 39

» Chemistry » Periodic Classification of Elements

Match List-Ⅰ List-Ⅱ▾

Question

Match the following:
List-Ⅰ (Reactants) List-Ⅱ (Products)

(A)

Equation

(i)

Equation

(B)

Equation

(ii)

Equation

(C)

Equation

(iii)

Equation

Choices

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

a.

  • (i)
  • (iii)
  • (ii)

b.

  • (iii)
  • (i)
  • (ii)

c.

  • (iii)
  • (ii)
  • (i)

d.

  • (ii)
  • (iii)
  • (i)

Question number: 40

» Chemistry » Metals & Non Metals

MCQ▾

Question

All of the following elements are metalloids except

Choices

Choice (4) Response

a.

antimony

b.

gallium

c.

silicon

d.

germanium

Question number: 41

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

When hydrogen and oxygen combined chemically in a fixed ratio of 1: 8 by weight, X is obtained. X

Choices

Choice (4) Response

a.

is homogeneous

b.

can be separated into its constituent by physical methods.

c.

has fixed melting point

d.

has properties quite different from hydrogen and oxygen

Question number: 42

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Consider the following statements.

I. Chloralkali process is the process of electrolysis of Equation solution.

II. During electrolysis, Equation gas is produced at anode and Equation gas is produced at cathode.

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

Choices

Choice (4) Response

a.

I and II

b.

Only I

c.

I nor II

d.

Only II

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