Chemistry-Structure of Atom (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 23 - 29 of 34

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Question number: 23

» Chemistry » Structure of Atom

MCQ▾

Question

Which of the following gases’ is known as tear gas?

Choices

Choice (4) Response
a.

Sulphur dioxide

b.

Chloropicrin

c.

Methyl isocyanides

d.

Nitrous oxide

Question number: 24

» Chemistry » Structure of Atom

MCQ▾

Question

How many moles are in 5 g of calcium?

Choices

Choice (4) Response
a.

0.5 mole

b.

0.375 mole

c.

0.25 mole

d.

0.125 mole

Question number: 25

» Chemistry » Structure of Atom

MCQ▾

Question

Which of the following represents 1?

Choices

Choice (4) Response
a.

Mass of C-12 atoms

b.

112th of mass of C-12 atoms

c.

Mass of 0 - 16 atoms

d.

Mass of H-atom

Question number: 26

» Chemistry » Structure of Atom

MCQ▾

Question

The chloride of a metal has the formula MCl3 . The formula of its phosphate will be

Choices

Choice (4) Response
a.

M2PO4

b.

MPO4

c.

M3PO4

d.

M(PO4)2

Question number: 27

» 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: 28

» 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: 29

» 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)

NaCl Codes

(B)

Rock salt

(ii)

Na2CO3

(C)

Washing soda

(iii)

NaHCO3

(D)

Alum

(iv)

KAl(SO4)2·12H2O

Choices

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

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