Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 116 - 122 of 144

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Question number: 116

» Chemistry » Structure of Atom

MCQ▾

Question

Dry ice used to preserve food using non-cyclic refrigeration is the solid form of

Choices

Choice (4) Response

a.

CO2

b.

CO

c.

NO2

d.

N2

Question number: 117

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Consider the following statements

I. The first artificially synthesized organic molecule was urea.

II. Urea is also known as diaminomethanal.

Whichof the abovestatement (s) is/are correct?

Choices

Choice (4) Response

a.

I and II

b.

Neither I nor II

c.

Only II

d.

Only I

Question number: 118

» Chemistry » Structure of Atom

MCQ▾

Question

Consider the following statements

I. Positively charged ions are known as cations.

II. Negatively charged ions are known as anions.

Which of the about statement) is/are correct?

Choices

Choice (4) Response

a.

I and II

b.

Neither I nor II

c.

Only II

d.

Only I

Question number: 119

» Chemistry » Acid Bases and Salt

MCQ▾

Question

In an average adult human body, the amount of Equation is about

Choices

Choice (4) Response

a.

240 g

b.

250 g

c.

260 g

d.

280 g

Question number: 120

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Equation

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 121

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

A gas can be liquefied by

Choices

Choice (4) Response

a.

Increasing the pressure and lowering the temperature

b.

Increasing the temperature

c.

Lowering the temperature

d.

Increasing the pressure

Question number: 122

» Chemistry » Metals & Non Metals

Match List-Ⅰ List-Ⅱ▾

Question

Match the following
List-Ⅰ (Alloy) List-Ⅱ (Use)

(A)

Duralumin

(i)

Rockets

(B)

Brass

(ii)

Knives of blades

(C)

Stainless steel

(iii)

Utensils, pipes, nut

(D)

Bronze

(iv)

Coins

Choices

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

a.

  • (i)
  • (ii)
  • (iii)
  • (iv)

b.

  • (i)
  • (ii)
  • (iv)
  • (iii)

c.

  • (i)
  • (iii)
  • (ii)
  • (iv)

d.

  • (iii)
  • (i)
  • (iv)
  • (ii)

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