Chemistry-Structure of Atom (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 12 - 17 of 34

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Question number: 12

» Chemistry » Structure of Atom

Match List-Ⅰ List-Ⅱ▾

Question

Match the following:
List-Ⅰ List-Ⅱ

(A)

Halo alkanes

(i)

C n H 2 n

(B)

Alkane

(ii)

CnH2n+1X

(C)

Alkene

(iii)

CnH2n+2

Choices

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

a.

  • (ii)
  • (i)
  • (iii)

b.

  • (ii)
  • (iii)
  • (i)

c.

  • (i)
  • (ii)
  • (iii)

d.

  • (iii)
  • (ii)
  • (i)

Question number: 13

» Chemistry » Structure of Atom

Match List-Ⅰ List-Ⅱ▾

Question

Match the following:
List-Ⅰ (Name) List-Ⅱ (Formula)

(A)

Bleaching powder

(i)

Ca(ClO)2

(B)

Caustic soda

(ii)

HgS

(C)

Vermillion

(iii)

Na2B4O7⋅10H2O

(D)

Borax

(iv)

NaOH

Choices

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

a.

  • (i)
  • (iv)
  • (ii)
  • (iii)

b.

  • (iii)
  • (ii)
  • (iv)
  • (i)

c.

  • (i)
  • (ii)
  • (iii)
  • (iv)

d.

  • (iv)
  • (ii)
  • (iii)
  • (i)

Question number: 14

» Chemistry » Structure of Atom

MCQ▾

Question

A gas which is found in ________ helps in protecting us from harmful UV radiations. This gas is

Choices

Choice (4) Response

a.

oxygen in troposphere

b.

ozone in stratosphere

c.

ozone is mesosphere

d.

ozone in troposphere

Question number: 15

» Chemistry » Structure of Atom

MCQ▾

Question

The atomic numbers of four elements P, Q, R and S are 6, 8, 10 and 12, respectively. Which of the two elements can react to form ionic compounds?

Choices

Choice (4) Response

a.

R and S

b.

P and S

c.

Q and S

d.

P and Q

Question number: 16

» Chemistry » Structure of Atom

MCQ▾

Question

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

Choices

Choice (4) Response

a.

2, 8.6

b.

2, 8, 8, 3

c.

2, 8, 8

d.

2, 8, 4

Question number: 17

» Chemistry » Structure of Atom

MCQ▾

Question

Electron dot structure of chlorine have symbol Cl surrounded by seven dots.

The image display is chlorine symbol

The Image Display Is Chlorine Symbol

The image is C1 surrounded by dots

Which atom would be represented by an identical dot arrangement has the atomic number?

Choices

Choice (4) Response

a.

15

b.

19

c.

9

d.

7

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