Chemistry-Structure of Atom (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 6 - 11 of 34

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Question number: 6

» 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: 7

» Chemistry » Structure of Atom

MCQ▾

Question

The most common oxidation number for silicon in a compound would be

Choices

Choice (4) Response

a.

+ 1

b.

+3

c.

+2

d.

+4

Question number: 8

» Chemistry » Structure of Atom

MCQ▾

Question

The element with atomic number 9, 17, 35, 53 and 85 are all

Choices

Choice (4) Response

a.

light metals

b.

noble gases

c.

halogens

d.

heavy metals

Question number: 9

» Chemistry » Structure of Atom

Match List-Ⅰ List-Ⅱ▾

Question

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

(A)

Bleaching powder

(i)

Equation

(B)

Caustic soda

(ii)

HgS

(C)

Vermillion

(iii)

Na2B4O7⋅10H2O

(D)

Borax

(iv)

Equation

Choices

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

a.

  • (iii)
  • (ii)
  • (iv)
  • (i)

b.

  • (i)
  • (ii)
  • (iii)
  • (iv)

c.

  • (iv)
  • (ii)
  • (iii)
  • (i)

d.

  • (i)
  • (iv)
  • (ii)
  • (iii)

Question number: 10

» 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: 11

» 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

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