Chemistry-Periodic Classification of Elements (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 13 - 17 of 23

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Question number: 13

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Arrange the following elements in increasing order of their ionization energies

Nb, Sr, Y, Cd, Rb

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 14

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Equation

The reaction is interpreted as

Choices

Choice (4) Response

a.

Equation is getting reduced and Equation is getting oxidized

b.

Only Equation is oxidized

c.

Equation and Equation are reduced

d.

Equation is getting oxidized and Equation is getting reduced

Question number: 15

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Which of the following pairs of elements represents a mole ratio of 1: 1?

Choices

Choice (4) Response

a.

20 g of C and 12 g of C

b.

20 g of Ca and 20 g of Na

c.

12 g of Mg and 6 g of C

d.

10 g of C and 12 g of Mg

Question number: 16

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Consider the following statements

I. A freshly prepared mixture of 1: 3 ratio of cone HNO3: cone HCl.

II. Highly corrosive, fuming liquid.

III. It can dissolve all metal even Au and Pt.

The incorrect statements are

Choices

Choice (4) Response

a.

II and III

b.

I and II

c.

I, II and III

d.

None of the above

Question number: 17

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Elements given below forms a group alike except one. Identify the odd one.

Holmium, Copernicium, Kryptonite, Berkelium

Choices

Choice (4) Response

a.

Copernicium

b.

Holmium

c.

Kryptonite

d.

Berkelium

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