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Worksheets

Acids and Bases

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the pH of a neutral substance?

a)

3

b)

12

c)

4

d)

7

2.

Vinegar has a sour taste. What will be its pH ?

a)

3.5

b)

7.5

c)

11.3

d)

14

3.

What is the name of the acid present in Coke and Pepsi?

a)

Hydrochloric acid

b)

Acetic Acid

c)

Carbonic Acid

d)

Citric Acid

4.

___________ are corrosive in nature.

a)

Mineral Acids

b)

Bases

c)

Alkalis

d)

Organic Acids

5.

Which indicator toggles between Red and Blue to indicate acidity or basicity?

a)

Methyl Orange

b)

Litmus Paper

c)

Phenolphthalein

d)

Methyl Red

6.

Milk of Magnesia is an example of a _______

a)

Acid

b)

Alkali

c)

Antacid

d)

Base

7.

Acetic acid is found in

a)

Curd

b)

Spinach

c)

Citrus Fruits

d)

Vinegar

8.

Choose the odd one out.

a)

Ammonium Hydroxide

b)

Tartaric Acid

c)

Oxalic Acid

d)

Nitric Acid

9.

Many cleaning solutions are bases. Which of the following is a common property among basic solutions?

a)

Sour Taste

b)

White Colour

c)

Slippery Feel

d)

Salty Taste

10.

Ocean water has a pH value near "8". It would be classified as a ____________

a)

Slightly acidic

b)

A strong base

c)

A neutral substance

d)

Slightly basic (alkaline)

11.

Which substance has the lowest pH?

a)

Milk

b)

NaOH

c)

Pure Water

d)

Lemon Juice

12.

What kind of acid is produced by our muscles when we exercise?

a)

Sulfuric acid

b)

Lactic acid

c)

Acetic acid

d)

Boric Acid

13.

Acids are found on the pH scale between which numbers?

a)

0-14

b)

7-14

c)

0-7

d)

19-42

14.

An organic substance that changes color in the presence of an acid or base is called _________

a)

Indicator

b)

Inhibitor

c)

Catalyst

d)

Salt

15.

Which is the most acidic from the options below?

a)

Banana

b)

Lemon juice

c)

Fish

d)

Orange Juice

16.

_________________can resist the change of pH when you add acids or bases.

a)

Strong Acids

b)

Strong Bases

c)

Salts

d)

Water

17.

Which are the examples of indicators?

a)

Red cabbage indicator and Aspirin

b)

Limewater, Caustic Soda and Methyl Orange

c)

Litmus Paper, Phenolphthalein and Bromothymol Blue

d)

Methyl Orange and Blue Vitriol

18.

Which of the following statements is true concerning acids and bases?

a)

acids and bases don't react with each other

b)

acids mixed with bases neutralize each other

c)

acids mixed with bases make stronger bases

d)

acids mixed with bases make stronger acids

19.

This helps to reduce the amount of acids found in foods.

a)

Ions

b)

Bases

c)

pH

d)

Hydrogen

20.

Which of these is a natural indicator?

a)

China Rose

b)

Methyl Red

c)

Litmus Solution

d)

Lemon Juice