IGCSE Chemistry: Specimen Questions with Answers 42 - 45 of 240

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Question 42

Write in Short

Short Answer▾

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 43

Question

MCQ▾

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

Image Showing of Fractions

Which row correctly identifies fractions 1,2 and 3?

Choices

Choice (4)

a.

Fractions: Choice A

b.

Fractions: Choice B

c.

Fractions: Choice C

d.

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 44

Edit

Statement

True-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 45

Question

MCQ▾

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

Choices

Choice (4)

a.

Nitrogen, Sulphur and Sodium

b.

Carbon and Phosphorus

c.

Carbon, Nitrogen and Sulphur

d.

Sodium, Potassium and Carbon

Answer

c.

Explanation

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

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