Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 90 - 97 of 144

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Question number: 90

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

The gas you use in kitchen is called Liquefied Petroleum Gas (LPG). In the cylinder, it exists as a liquid. When it comes out of the cylinder, it becomes a gas (process A), then it burns (process B).

Choose the correct statement.

Choices

Choice (4) Response

a.

processes A and B are chemical changes

b.

Process A is chemical change

c.

Process B is a chemical change

d.

All of the above

Question number: 91

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

The best method to separate the dyes from ink is

Choices

Choice (4) Response

a.

Filtration

b.

Sublimation

c.

Distillation

d.

Chromatography

Question number: 92

» Chemistry » Metals & Non Metals

MCQ▾

Question

The metal constituent of chlorophyll is

Choices

Choice (4) Response

a.

Potassium

b.

Manganese

c.

Magnesium

d.

Iron

Question number: 93

» Chemistry » Carbon and Its Compounds

MCQ▾

Question

The major portion of combustible part of gobar gas is

Choices

Choice (4) Response

a.

Ethane

b.

Ethylene

c.

Acetylene

d.

Methane

Question number: 94

» Chemistry » Fibres and Plastics

MCQ▾

Question

Which of the following will be suitable for coating dress materials of fire-men?

Choices

Choice (4) Response

a.

Acrylic

b.

Nylon

c.

Melamine

d.

Polyester

Question number: 95

» Chemistry » Structure of Atom

MCQ▾

Question

The electronic configuration of chlorine with atomic number 17 is

Choices

Choice (4) Response

a.

2, 9, 9

b.

2, 9, 6

c.

2, 10, 7

d.

2, 8, 7

Question number: 96

» Chemistry » Structure of Atom

MCQ▾

Question

Neutron was discovered by

Choices

Choice (4) Response

a.

Rutherford

b.

James Chadwick

c.

Goldstein

d.

J. J. Thomson

Question number: 97

» Chemistry » Structure of Atom

Match List-Ⅰ List-Ⅱ▾

Question

Match the following Compound Formula
List-Ⅰ (List 1) List-Ⅱ (List II)

(A)

Baking soda

(i)

Codes

(B)

Rock salt

(ii)

Na2CO3

(C)

Washing soda

(iii)

(D)

Alum

(iv)

Choices

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

a.

  • (i)
  • (iii)
  • (ii)
  • (iv)

b.

  • (iii)
  • (i)
  • (ii)
  • (iv)

c.

  • (iv)
  • (iii)
  • (ii)
  • (i)

d.

  • (ii)
  • (i)
  • (iv)
  • (iii)

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