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pH and salts

Authored by Martin Smith

Science

8th Grade

Used 23+ times

pH and salts
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to litmus paper in acidic solutions?

Red litmus turns blue

Blue litmus turns red

Yellow litmus turns green

Blue litmus stays blue

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Universal indicator solution is usually green to begin with. What does this mean?

It is acidic

It is alkaline

It is neutral

It is weak

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A liquid has a pH of 8. What does this mean?

It is weakly acidic

It is weakly alkaline

It is neutral

It is strongly alkaline

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A liquid has a pH of 1. What does this mean?

It must be sodium hydroxide solution

It is strongly acidic

It is weakly acidic

It is weakly alkaline

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which acid could be used to make ammonium nitrate (a type of fertiliser)?

Hydrochloric acid

Sulfuric acid

Nitric acid

Ethanoic acid

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Farmers use lime to neutralise their acidic soils. What sort of substance is lime?

A base

An acid

A sharp tasting drink

A fertiliser

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which salt is made when copper oxide and sulfuric acid react together?

Copper sulfate

Copper sulfuroxide

Copper sulfide

Copper citrate

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