Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 59 - 63 of 144

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Question number: 59

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Equation . This is an unbalanced equation. Write its balanced equation.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 60

» 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.

Ill and V

b.

I and V

c.

II and IV

d.

IV and V

Question number: 61

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Equation .

It is an example of

Choices

Choice (4) Response

a.

decomposition reaction

b.

displacement reaction

c.

double displacement reaction

d.

redox reaction

Question number: 62

» Chemistry » Carbon and Its Compounds

MCQ▾

Question

Which of the following forms of coal has the lowest percentage of carbon?

Choices

Choice (4) Response

a.

Anthracite

b.

Peat

c.

Bituminous

d.

Lignite

Question number: 63

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

When ethanol is heated with cone Equation at a temperature of 170°C, it gets converted into ethane acid. In this reaction cone Equation plays a role of

Choices

Choice (4) Response

a.

oxidizing agent

b.

dehydrating agent

c.

reducing agent

d.

catalyst

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