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Neutralization Form 2

Total questions: 31

Worksheet time: 28mins

Name
Class
Date
1.
If a wasp sting is a weak alkali, which of the chemicals below would be the BEST to add to neutralise the alkali?
a)
hydrochloric acid
b)
vinegar
c)
car battery acid
d)
caustic soda
2.
What is the pH of the chemical made when you mix an equal strength acid and alkali together?
a)
4
b)
7
c)
9
d)
12
3.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
4.
The products of a neutralization reaction are acids and bases
a)
True
b)
False
5.
A solution with a pH of 7 is________
a)
increasing
b)
neutral
c)
decreasing
d)
apple juice
6.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
14
c)
1
d)
2
7.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
8.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
9.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
10.

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

a)

Alkali

b)

Acid

c)

Buffer

d)

Water

11.

Is this substance acidic, basic/alkali, or neutral?

a)

Acidic

b)

Basic/alkali

c)

Neutral

12.
What is a property of bases?
a)
Slippery touch
b)
Sour taste
c)
Ability to dissolve metal
d)
Ability to form hydronium ions
13.
A neutralization reaction will always produce...
a)
water & salt
b)
water
c)
salt
d)
water & carbon
14.

Where does the acid in you mouth come from?

a)

From stomach

b)

From stomach acid

c)

From the millions of

bacteria of mouth

d)

From the teeth

15.

... are used to neutralise acid in the stomach.

a)

Toothpastes

b)

Bacterias

c)

Antacids

d)

More strong acids

16.

The reaction between an acid and an alkali

produces salt and water. This reaction is called

a)

acidication

b)

neutralisation

c)

alkalisation

17.

Complete the word equation below:

Acid + alkali --> ............... + water

a)

water

b)

salt

c)

gold

d)

metal

18.

Sulphuric acid + potassium hydroxide --> ........................ + water

a)

potassium sulphate

b)

potassium sulphurate

c)

potassium nitrate

d)

magnesium hydroxide

19.

Toothpaste contain .................. that neutralize acid formed by bacteria.

a)

alkali

b)

acid

c)

antacid

d)

slaked lime

20.
What method is used to study the neutralisation reaction between an acid and an alkali?
a)
Evaporation
b)
Titration
c)
Sublimation
d)
Electrolisis
21.
In a neutralisation reaction, what is the function of the indicator?
a)
To indicate that the mixture is neutral
b)
To indicate that hot water should be added
c)
To indicate that the flask should be shaken
d)
To indicate that a precipitate is formed
22.
In a neutralisation reaction, dilute hydrochloric acid is slowly added to a sodium hydroxide solution. What is the colour change at the end point if the indicator used is phenolphthalein?
a)
From colourless to pink
b)
From blue to green
c)
From pink to colourless
d)
From green to blue
23.
What is the salt formed when nitric acid is added to potassium hydroxide?
a)
Sodium chloride
b)
Potassium nitrate
c)
Sodium nitrate
d)
Potassium chloride
24.
products of a neutralisation reaction are always
a)
an acid and a base
b)
an acid and a salt
c)
salt and water
d)
salt and base
25.

If this product is detergent, most probably it is

a)

acid

b)

neutral

c)

Alkali

26.
This image represents
a)
Neutralization reaction
b)
synthesis
c)
decompostion
d)
single displacement
27.
Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
a)
Acids; pH less than 7
b)
Acids; pH greater than 7
c)
Bases; pH greater than 7
d)
Bases; pH less than 7
28.
Which of the following is a base?
a)
orange juice
b)
water
c)
vinegar
d)
dishwashing detergent
29.
 Which of the following is an acid?
a)
shampoo
b)
baking soda
c)
orange juice
d)
water
30.
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker
a)
is a base.
b)
has a neutral pH.
c)
is an acid.
d)
does not have a pH.
31.
 Which of the following is an acid?
a)
shampoo
b)
baking soda
c)
orange juice
d)
water

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