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Worksheets

Acids and alkalis

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

what does PH measure?

a)

How dilute a solution is

b)

How acidic or alkaline a solution is

c)

The colour of a solution

d)

Whether a solution is safe to drink

2.

what can we use to measure PH

a)

indicator

b)

ruler

c)

measuring cylinder

d)

mass balance

3.

pure water has a pH of?

a)

0

b)

3

c)

7

d)

12

4.

what is the largest number on a pH scale?

a)

10

b)

14

c)

22

d)

20

5.

How would I know that a solution is acidic?

a)

universal indicator turns black

b)

universal indicator turns red

c)

universal indicator turns blue

d)

universal indicator turns green

6.

How would I know a solution is alkaline?

a)

universal indicator turns orange

b)

universal indicator turns green

c)

universal indicator turns red

d)

universal indicator turns purple

7.

what colour is universal indicator in a neutral solution ?

a)

red

b)

green

c)

blue

d)

yellow

8.

What does this symbol mean?

a)

explosive

b)

toxic

c)

corrosive

d)

flammable

9.

How should we protect our eyes during practical's?

a)

close your eyes

b)

we shouldn't

c)

glasses

d)

goggles

10.

A pH of 2 indicates a ...

a)

acid that is red

b)

strong acid that is blue

c)

alkali that is purple

d)

strong acid that is red

11.

what PH would a strong alkali be?

a)

0

b)

14

c)

7

d)

11

12.

what do we do if we spill a solution on our skin

a)

both of the answers

b)

tell the teacher

c)

wash it off our skin

13.

What pH would hydrochloric acid be ?

a)

1

b)

5

c)

7

d)

9

14.

water has a pH of 7. what does this tell us about water?

a)

it is an alkali

b)

it is a neutral substance

c)

it is an acid

15.

what does this symbol mean?

a)

toxic

b)

corrosive

c)

harmful

d)

flammable