Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 26 - 30 of 144

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Question number: 26

» Chemistry » Structure of Atom

Match List-Ⅰ List-Ⅱ▾

Question

Match the following:
List-Ⅰ List-Ⅱ

(A)

Mild steel

(i)

Non-ferrous

(B)

Mica

(ii)

Ferrous

(C)

Nickel

(iii)

Non-metallic

(D)

Natural gas

(iv)

Energy resource

Choices

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

a.

  • (i)
  • (iii)
  • (iv)
  • (ii)

b.

  • (iv)
  • (i)
  • (ii)
  • (iii)

c.

  • (ii)
  • (iii)
  • (i)
  • (iv)

d.

  • (ii)
  • (iv)
  • (i)
  • (iii)

Question number: 27

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

An electron dot structure for an element shows that element’s symbol and an arrangement of dots that indicates the

Choices

Choice (4) Response

a.

total number of electrons

b.

atomic number

c.

atomic mass

d.

number of electrons in the outer energy level

Question number: 28

» Chemistry » Structure of Atom

MCQ▾

Question

The chemical name of Cd (MnO 4) 2 and Fe 3 (PO 4) 2 are

Choices

Choice (4) Response

a.

cadmium manganite: Iron (II) phosphite

b.

cadmium permanganate: Iron (III) phosphide

c.

cadmium permanganate: Iron (II) phosphate

d.

cadmium manganate: Iron (III) phosphate

Question number: 29

» Chemistry » Acid Bases and Salt

MCQ▾

Question

Consider the following statements

I. An amphoteric substance can act as both an acid and a base.

II. Bases are sometimes called alkalis.

Which of the statements) given above is/are correct?

Choices

Choice (4) Response

a.

Only I

b.

Only II

c.

I and II

d.

None of the above

Question number: 30

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

A student took five test tubes containing solutions of different colors marked I, II, III, IV and V as shown below. The test tubes containing copper sulphate and ferrous sulphate solution could be the tubes

Five test tubes containing different colors

Five Test Tubes Containing Different Colors

Find the test tube containing copper sulphate and ferrous sulphate

Choices

Choice (4) Response

a.

IV and V

b.

II and IV

c.

I and V

d.

III and V

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