Carbonates

Carbonates

11th Grade

10 Qs

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Carbonates

Carbonates

Assessment

Quiz

Chemistry

11th Grade

Hard

Created by

Nadarajan Yuven

Used 41+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When limestone is heated it forms lime (calcium oxide) and carbon dioxide.

CaCO3(s) → CaO(s) + CO2(g)

Which statement is NOT correct?

Carbon dioxide is a greenhouse gas which may contribute to climate change.

Slaked lime is used to neutralise industrial waste.

The lime can be used to treat alkaline soil.

This reaction is an example of thermal decomposition.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Lime (calcium oxide) is used to treat waste water from a factory. Which substance is removed by the lime?

ammonia

sodium chloride

sodium hydroxide

sulfuric acid

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which process is used to make lime (calcium oxide) from limestone (calcium carbonate)?

chromatography

electrolysis

C fractional distillation

thermal decomposition

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When compound X is heated, it changes colour from green to black. Compound Y is formed and a gas is given off which turns limewater milky.

X and Y are ......................................, respectively.

calcium carbonate and calcium oxide

copper carbonate and carbon

copper carbonate and copper oxide

copper sulfate and copper oxide

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which process is carbon dioxide not formed?

burning of natural gas

fermentation

heating lime

respiration

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Carbon dioxide is produced when dilute hydrochloric acid reacts with

calcium sulfate.

carbon.

copper(II) carbonate.

limewater.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two industrial processes that involve heating are

1. extracting iron from its ore using a blast furnace

2. making lime.

In which of these processes is calcium carbonate used?

Process 1

Process 2

Both 2 processes

None of the processes

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