Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 71 - 75 of 142

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Question number: 71

» Chemistry » Periodic Classification of Elements

Match List-Ⅰ List-Ⅱ▾

Question

match the following:
List-Ⅰ (List I) List-Ⅱ (List II)

(A)

Lothal

(i)

Traces of a dock and ship on seal

(B)

ChanhuDaro

(ii)

Discovery of skeleton of horse

(C)

Kalibangan

(iii)

Evidence of ploughing the fields

(D)

Surkotada

(iv)

Bead making

Choices

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

Question number: 72

» Chemistry » Metals & Non Metals

MCQ▾

Question

Consider the following statements

I. Selenium is a halogen.

II. Sodium is an alkali metal.

Which of the above statements) is/are correct?

Choices

Choice (4) Response
a.

I and II

b.

Only I

c.

Only II

d. None of the above

Question number: 73

» 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: 74

» Chemistry » Carbon and Its Compounds

Match List-Ⅰ List-Ⅱ▾

Question

Match the following:
List-Ⅰ List-Ⅱ

(A)

Propanol

(i)

CH3CH2CH2OH

(B)

Acetone

(ii)

Ethanol

(C)

CH3CH2OH

(iii)

HCHO

(D)

Formaldehyde

(iv)

CH3COCH3

Choices

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

Question number: 75

» 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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