CIE Chemistry (US-0439): Specimen Questions with Answers 42 - 45 of 240

Question number: 42

Short Answer Question▾

Write in Short

Chlorine reacts with potassium bromide to form potassium chloride and bromine.

Complete the symbol equation for this reaction.

Explanation

The above equation balanced equation.

Question number: 43

MCQ▾

Question

The table shows some fractions that are obtained from petroleum by fractional distillation, together with some of their uses.

Image showing of Fractions

Image Showing of Fractions

Image showing of Fractions

Which row correctly identifies fractions 1,2 and 3?

Choices

Choice (4) Response

a.

Image of fractions: Choice A

Image of Fractions: Choice A

Image of fractions: Choice A

b.

Image of fractions: Choice B

Image of Fractions: Choice B

Image of fractions: Choice B

c.

Image of fractions: Choice C

Image of Fractions: Choice C

Image of fractions: Choice C

d.

Image of fractions: Choice D

Image of Fractions: Choice D

Image of fractions: Choice D

Answer

d.

Explanation

Correct option is D because naphtha is used for making chemicals and cleaning the metals, kerosene is used jet fuel, and fuel oil is used as fuel for ships.

Question number: 44

True-False▾

Is the Following Statement True or False?

Urea is an inorganic compound.

Answer

FALSE

Explanation

Urea is derived from animals, i. e. living organisms. So it is an organic compound.

Hence the given statement is False.

Question number: 45

MCQ▾

Question

The smoke emitted by industries primarily consists of oxides of ________.

Choices

Choice (4) Response

a.

Carbon and Phosphorus

b.

Sodium, Potassium and Carbon

c.

Carbon, Nitrogen and Sulphur

d.

Nitrogen, Sulphur and Sodium

Answer

c.

Explanation

The smoke emitted by industries primarily consists of oxides of Carbon, Nitrogen and Sulphur.