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Preparation of salts

Total questions: 50

Worksheet time: 35mins

Name
Class
Date
1.

Lemon contains acid or alkali or neutral

a)

Acid

b)

Alkali

c)

Neutral

2.

What is an example of neutral

a)

Vinegar

b)

Water

c)

Milk

d)

Drain cleaner

3.

When you get a bee sting (acidic), what will you use to make you feel better ?

a)

Water

b)

Baking soda

c)

Milk

d)

Toothpaste

4.

The other name of alkali is basic

a)

True

b)

False

5.

What is the meaning of the above hazard warning symbol?

a)

Corrosive

b)

Explosive

c)

Toxic

d)

Radioactive

6.

The color of litmus in acid:

a)

Red

b)

Blue

c)

Purple

d)

Green

7.

What colour does red litmus paper turn when added to an alkali?

a)

Blue

b)

Red

c)

Green

d)

Colourless

8.

Alkali could also be known as

a)

Acid

b)

Weak acid

c)

Base

d)

Maze

9.

True or False: Acids with a low pH and bases with a high pH are considered very dangerous.

a)

True

b)

False

10.

What kind of acid is present in your stomach?

a)

Sulfuric acid

b)

Hydrochloric acid

c)

Citric acid

d)

Nitric acid

11.

Which of the following about properties of acid is not true?

a)

pH less than 7

b)

Tastes bitter

c)

Corrosive

d)

Turns blue litmus paper to red

12.

Which of the following will change the red litmus paper to blue?

a)

Sodium hydroxide

b)

Hydrochloric acid

c)

Sulphuric acid

d)

Nitric acid

13.

Which of the following indicator will show different colour in acid, neutral and alkali?

a)

Phenolphtalein

b)

Universal indicator

c)

Methyl orange

d)

Litmus paper

14.

Hydrochloric acid + Sodium hyroxide  →\rightarrow   ____________ + Water

a)

Sodium sulphate

b)

Sodium chloride

c)

Sodium nitrate

15.

Nitric acid + __________  →\rightarrow  Sodium nitrate + Water

a)

Aluminium oxide

b)

Magnesium hydroxide

c)

Sodium hydroxide

16.

The technique used in neutralisation is called

a)

sedimentation

b)

titration.

17.
a)

PH scale

b)

pH ruler

c)

pH scale

d)

pH statistical tables

18.

Tell 3 things that contain acid

a)

Lemon, baking soda, water

b)

Water, tomato, vinegar

c)

Vinegar, hand soap, drain cleaner

d)

Vinegar, milk, hydrochloric acid

19.

The volcano eruption experiment has the connection with the acid and alkali

a)

True

b)

False

20.

Tell 3 things contain alkali

a)

Lemon, milk, water

b)

Milk, household bleach, tomato

c)

Baking soda, toothpaste, drain cleaner

d)

Water, apple, banana

21.

What is the color for the strongest acid and what pH is

a)

Green, pH7

b)

Purple, pH13

c)

Orange, pH2

d)

Red, pH0

22.

What is human blood

a)

Acid

b)

Alkali

c)

Neutral

d)

Nothing

23.
What elements make up Copper sulphate? CuSO4
a)
copper, sulphate
b)
copper, sulphur
c)
copper, sulphur and oxygen
d)
copper and oxygen
24.
Magnesium and hydrochloric acid are mixed together in a beaker, hydrogen is produced as well as magnesium chloride.
Choose correct word equation
a)
magnesium chloride + hydrogen --> magnesium + hydrochloric acid
b)
magnesium + hydrochloric acid --> magnesium chloride + hydrogen
25.
Magnesium + Hydrochloric acid --> Magnesium chloride + hydrogen
Choose correct reactants
a)
Magnesium and hydrochloric acid
b)
Magnesium chloride and hydrogen
26.
Iron + Hydrochloric acid --> ?
a)
iron sulfate + water
b)
iron + hydrogen
c)
iron chloride + hydrogen
d)
iron chloride + water
27.
Salts that are made with carbonic acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
28.

Acid + Carbonate ----->

a)

salt + hydrogen

b)

salt + water + carbon dioxide

c)

salt + water

d)

salt + carbon dioxide

29.
acid + metal ----->
a)
salt + hydrogen
b)
salt + water + carbon dioxide
c)
salt + water
d)
salt + carbon dioxide
30.
Magnesium + sulphuric acid --> ?
a)
magnesium sulfate + water
b)
magnesium sulfate + hydrogen
c)
magnesium chloride + hydrogen
d)
magnesium chloride + water
31.
Zinc + nitric acid --> ?
a)
zinc sulfate + water
b)
zinc sulfate + hydrogen
c)
zinc nitrate + hydrogen
d)
zinc chloride + water
32.
Which equation correctly shows the displacement of copper by zinc?
a)
copper + zinc sulphate --> copper sulfate + zinc
b)
zinc sulphate + copper --> copper sulfate + zinc
c)
copper sulfate + zinc --> zinc sulfate + copper
33.
What reactants are needed to prepare (make) copper carbonate?
a)
copper and hydrochloric acid
b)
copper and sulfuric acid
c)
copper and nitric acid
d)
copper and carbonic acid
34.
What reactants are needed to prepare (make) lead sulfate?
a)
lead and hydrochloric acid
b)
lead and sulfuric acid
c)
lead and nitric acid
d)
lead and carbonic acid
35.
Why is burning a salt one way to determine the metal used in preparing it?
a)
Each metal burns a different color.
b)
Some metals burn and some don't.
c)
Each metal has a different colored smoke.
d)
Burning salts is not will not help determine the metal.
36.

What does the word insoluble mean?

a)

Does dissolve

b)

Doesn't dissolve

c)

Is part of a solid

d)

never change the state

37.

What is the test for Carbon Dioxide?

a)

Add Litmus paper

b)

Lime water turning milky

c)

Squeaky pop

d)

sour taste

38.

Acids are represented by what range on the pH scale?

a)

0 - 14

b)

below 7

c)

7

d)

above 7

39.
Bases are represented by what range on the pH scale?
a)
below 7
b)
7
c)
above 7
d)
0-14
40.
When found in food, acids often taste ________.
a)
Sour
b)
Bitter
c)
Salty
d)
Slippery
41.
When found in food, bases often taste _______.
a)
Sour
b)
Bitter
c)
Salty
d)
Soggy
42.

Which of the following statement is not correct?

a)

all metal carbonates react with acid to give a salt,water and CO2

b)

all metal oxides react with water to give salt and acid

c)

some metals react with acids to give salt and H2

d)

some non metal oxides react with water to form an acid

43.

sodium carbonate + citric acid → sodium hydrogen carbonate + water + carbondioxide

a)

true

b)

false

44.
Salts that are made with hydrochloric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
45.
Salts that are made with sulfuric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
46.
Salts that are made with nitric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
47.
Salts that are made with carbonic acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
48.
How do you know when a reaction between a metal and an acid is complete?
a)
All the metal is dissolved
b)
There is a color change in the acid
c)
Bubbles don't form when more metal is added
d)
All the acid evaporates
49.
In a reaction between an acid and a metal gas bubbles will appear. What is that gas?
a)
oxygen
b)
hydrogen
c)
helium 
d)
carbon dioxide
50.
In a reaction between an acid and a carbonate gas bubbles will appear. What is that gas?
a)
helium
b)
hydrogen
c)
oxygen
d)
carbon dioxide

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