NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension: Questions 42 - 46 of 1042

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Question number: 42

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Consider the following facts regarding electrons and identify the incorrect statements.

Choices

Choice (4) Response

a.

Relative charge of an electron is -1

b.

Electron was named by stoney

c.

Mass of an electron is 9.11 x 10- 27 g

d.

Charge of an electron is -1.6 × 10 -19 C

Question number: 43

» Mathematics » Basic Geometry

MCQ▾

Question

If the length of a rectangle is increased by 10 % and the area is unchanged, then by how much percent does the breadth decrease?

Choices

Choice (4) Response

a.

10 %

b.

9 %

c.

100/9 %

d.

100/11 %

Question number: 44

» Chemistry » Carbon and Its Compounds

MCQ▾

Question

A compound ‘X’ is an alkane. It is the main constituent of natural gas and abundantly found in marshy areas. In presence of sunlight, it reacts with chlorine and forms chloroform, but in absence of sunlight, it does not reacts with chlorine. Identify ‘X’.

Choices

Choice (4) Response

a.

Methane

b.

Butane

c.

Ethane

d.

Propane

Question number: 45

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

2KClO32KCl+3O2

The above reaction is an example of a

Choices

Choice (4) Response

a.

displacement reaction

b.

double displacement reaction

c.

combination reaction

d.

decomposition reaction

Question number: 46

» Chemistry » Metals & Non Metals

Match List-Ⅰ List-Ⅱ▾

Question

Match the following:
List-Ⅰ (Element) List-Ⅱ (Discoverer)

(A)

Titanium

(i)

Carl Wihhelm Scheele

(B)

Barium

(ii)

Daniel Rutherford

(C)

Polonium

(iii)

William Gregor

(D)

Nitrogen

(iv)

Marie Curie, Pierre Curie

Choices

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

a.

  • (iv)
  • (ii)
  • (i)
  • (iii)

b.

  • (iii)
  • (iv)
  • (i)
  • (ii)

c.

  • (iii)
  • (i)
  • (iv)
  • (ii)

d.

  • (i)
  • (iii)
  • (ii)
  • (iv)

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