Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 126 - 131 of 144

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Question number: 126

» Chemistry » Carbon and Its Compounds

MCQ▾

Question

Consider the following statements

I. Sulphur is used in making electrodes of dry cells.

II. Carbon is used in the vulcanization of rubber.

Which of the above statements is/are correct?

Choices

Choice (4) Response

a.

Neither I nor II

b.

Only I

c.

I and II

d.

Only II

Question number: 127

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

A magnetic wire of dipole moment Equation is bent in the form of semi-circle. The new magnetic moment is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

None of the above

Question number: 128

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Consider the following statements.

1. Carbonic acid is a weak acid.

2. Distilled water conduct electricity.

3. Dilute HC1 helps in digestion.

4. NaOH is a strong alkali.

Which of the statement (s) is/are incorrect?

Choices

Choice (4) Response

a.

1, 2 and 4

b.

Only 1

c.

Only 2

d.

Only 3

Question number: 129

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Equation

The above reaction is an example of a

Choices

Choice (4) Response

a.

Double displacement reaction

b.

Displacement reaction

c.

Combination reaction

d.

Decomposition reaction

Question number: 130

» Chemistry » Structure of Atom

MCQ▾

Question

Equation and Equation differ from each other in respect of number of

Choices

Choice (4) Response

a.

Neutrons

b.

Protons

c.

Electrons

d.

None of the above

Question number: 131

» Chemistry » Structure of Atom

MCQ▾

Question

Write the electronic configuration of S (atomic no. 16) in Sulphur dioxide.

Choices

Choice (4) Response

a.

2 8 4

b.

Equation

c.

2 8 6

d.

2 8 8

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