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y8 Acids and alkalis revision

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
2.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
3.

Which solution releases H+ in solution?

a)

Alkali

b)

Acid

c)

Buffer

d)

Water

4.

This substance releases OH- into solution

a)

Acid

b)

Alkali

c)

Neutral

5.

A solution with a pH of 3.6 would be...

a)

Acid

b)

Alkali

c)

Neutral

d)

Acid and alkali

6.

A solution with a pH of 8.6 would be...

a)

Acid

b)

Alkali

c)

Neutral

d)

Acid and alkali

7.
Which is most acidic?
a)
Baking Soda
b)
Lemon Juice
c)
Black Coffee
d)
Milk
8.

According to the pH range which substance is more acidic than lemon juice?

a)

Hydrochloric acid

b)

Cabbage

c)

Milk

9.

Bleach is a strong alkali, what is the pH level of bleach?

a)

13

b)

14

c)

1

d)

2

10.

Feel slippery.

a)

Acids

b)

Alkalis

c)

All

11.

Vinegar is an example of

a)

Acid

b)

Alkali

c)

Neutral

12.

Lemon juice is an example of

a)

Acid

b)

Alkali

c)

Neutral

13.

Coca Cola is an example of

a)

Acid

b)

Alkali

c)

Neutral

14.

Toothpaste is an example of

a)

Acid

b)

Alkali

c)

Neutral

15.

Soap is an example of

a)

Acid

b)

Alkali

c)

Neutral

16.

Oven cleaner is an example of

a)

Acid

b)

Alkali

c)

Neutral

17.

Blood is an example of

a)

Acid

b)

Alkali

c)

Neutral

18.

Milk is an example of

a)

Acid

b)

Alkali

c)

Neutral

19.

Saliva is an example of

a)

Acid

b)

Alkali

c)

Neutral

20.

Litmus indicator turns blue when in contact with a solution, the solution is

a)

Acid

b)

Alkali

21.

Litmus indicator turns red when in contact with a solution, the solution is

a)

Acid

b)

Alkali

22.

Metals and acids react to form .....

a)

Salt and hydrogen

b)

Salt and water

c)

Carbon dioxide, salt and water

d)

Hydrogen only

23.

Magnesium + hydrochloric acid-->

a)

Magnesium chloride + water

b)

Magnesium chloride + hydrogen

c)

Magnesium hydrochloride + hydrogen

d)

Magnesium chloride + water + carbon dioxide

24.

Zinc + sulfuric acid -->

a)

Zinc sulfide + hydrogen

b)

Zinc sulfate + hydrogen

c)

Zinc sulfate + Water +Carbon dioxide

d)

Zinc sulfide + water

25.

Iron + hydrochloric acid -->

a)

Iron chloride + hydrogen

b)

Iron chloride + carbondioxide

c)

Iron hydroxide + acid

d)

Iron chloric + hydrogen

26.

How do we test for hydrogen?

a)

Squeaky pop test

b)

Hydrogen extinguishes a lit splint

c)

Bubbling through lime water

d)

Hydrogen makes a glowing splint relight

27.

Acids have a pH range of....

a)

0 - 14

b)

0,1 - 6,9

c)

7

d)

7,1 - 14

28.

Metal carbonates react with acid to form....

a)

Salt, carboxylic acid and water

b)

Salt, carbon dioxide and water

c)

Salt and carbonated water

d)

Salt and hydrogen

29.

Calcium carbonate + hydrochloric acid -->

a)

Calcium chloride + hydrogen

b)

Calcium choride + water

c)

Calcium chloride + carbon dioxide + water

d)

Calcium sulfate + carbon dioxide + water

30.

According to pH scale, indicator will turn red if a solution is...

a)

Acidic

b)

Alkali

c)

Neutral

d)

Precipitate

31.

The test for carbon dioxide gas is ...

a)

It will extinguish a lit splint

b)

It will cause a squeaky pop

c)

It will explode

d)

When bubbled through lime water it turns the water cloudy

32.

Which salt will e produced if copper carbonate react with hydrochloric acid....

a)

Copper carbonate

b)

Copper chloride

c)

Water

d)

Carbon dioxide

33.

What gas is always produced when a metal reacts with acid?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Nitrogen

34.

What gas is always produced when carbonates reacts with acids?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Nitrogen

35.

In a displacement reaction...

a)

A less reactive metal displaces a more reactive metal in a compound

b)

Always take place, no matter how reactive the metals are

c)

A more reactive metal displaces a less reactive metal in a compound

36.

In a chemical reaction...

a)

atoms are created to form the products

b)

atoms are destroyed to form the products

c)

atoms rearrange themselves to form the products

37.

In a precipitation reaction...

a)

a new liquid substance is formed

b)

a new gas substance is formed

c)

a new solid substance is formed

38.

In which type of chemical reaction is oxygen added to an element to form a compound?

a)

Oxidation reaction

b)

Thermal decomposition

c)

Combustion

39.

In which type of chemical reaction is a compound broken up to form carbon dioxide and an oxide?

a)

Oxidation reaction

b)

Thermal decomposition

c)

Combustion

40.

What type of chemical reaction is another word for burning and the products are water and carbon dioxide?

a)

Oxidation reaction

b)

Thermal decomposition

c)

Combustion

41.

Metal + Acid -> ___ + ___

a)

Salt + Hydrogen

b)

Metal Hydroxide + Hydrogen

c)

Metal Oxide + Hydrogen

d)

Metal Carbonate + Hydrogen

42.

Sodium + Hydrochloric acid ->

a)

Sodium chlorine

b)

Sodium chlorine + hydrogen

c)

Sodium chloride + hydrogen

d)

Sodium chloride

43.

Lithium + nitric acid ->

a)

Lithium nitride + hydrogen

b)

Lithium nitric + hydrogen

c)

Lithium nitrogen + hydrogen

d)

Lithium nitrate + hydrogen

44.

Zinc + sulphuric acid ->

a)

hydrogen + Zinc sulphate

b)

Zinc sulphide + hydrogen

c)

Zinc Sulphur + hydrogen

d)

Zinc sulphate + helium

45.

___ + _____ -> sodium nitrate + hydrogen

a)

Sodium + nitric acid

b)

Sodium + nitrate

c)

Sodium + sulphuric acid

d)

Sodium + hydrochloric acid

46.

Lead + ____ -> Lead sulphate + hydrogen

a)

nitric acid

b)

sulphuric acid

c)

hydrochloric acid

d)

citric acid

47.

How can you test for hydrogen gas?

a)

sniff it

b)

squeaky pop test

c)

add universal indicator

d)

add lemon water

48.

More reactive metal displaces less reactive metal from its salt solution is known as

a)

Combination reaction

b)

Displacement reaction

c)

Neutral reaction

d)

None of the above

49.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
50.

A(n) _______ is a substance with a pH greater than 7.

a)

Alkali

b)

Acid

c)

Buffer

d)

Water

51.

A(n) _______ is a substance with a pH greater than 7.

a)

Alkali

b)

Acid

c)

Buffer

d)

Water

52.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
53.

Which solution releases H+ in solution?

a)

Alkali

b)

Acid

c)

Buffer

d)

Water

54.

This substance releases OH- into solution

a)

Acid

b)

Alkali

c)

Neutral

55.

Litmus indicator turns blue when in contact with a solution, the solution is

a)

Acid

b)

Alkali

56.

Litmus indicator turns red when in contact with a solution, the solution is

a)

Acid

b)

Alkali

57.

In a chemical reaction...

a)

atoms are created to form the products

b)

atoms are destroyed to form the products

c)

atoms rearrange themselves to form the products

58.

In a precipitation reaction...

a)

a new liquid substance is formed

b)

a new gas substance is formed

c)

a new solid substance is formed

59.

A compound is...

a)

one type of atom only

b)

two or more atoms of different element chemically joined together

c)

two or more atoms of different element chemically not joined together

60.

A mixture is...

a)

one type of atom only

b)

two or more atoms of different element chemically joined together

c)

two or more atoms of different element chemically not joined together

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