Acids, Bases and Indicators | Live Education Quiz

1

What is the pH of ammonia solution?

A 2 to 3 B 7 C 8 to 10 D 11 to 12

2

What is the chemical formula for hydrochloric acid?

A HCl B H2SO4 C HNO3 D H2CO3

3

What is the pH range of a base?

A 0 to 6 B 7 C 8 to 14 D 0 to 14

4

What is the pH of a neutral substance like pure water?

A 0 B 7 C 10 D 14

5

What is the chemical formula for potassium hydroxide?

A KOH B KCl C K2CO3 D KHCO3

6

What is the chemical formula for calcium hydroxide?

A CaOH B Ca(OH)2 C Ca(OH)3 D CaOH2

7

What is the pH of blood?

A 1 B 7.4 C 10 D 12

8

What is the reaction between an acid and a base called?

A Neutralization B Combustion C Oxidation D Reduction

9

What is the color of turmeric in an acid?

A Yellow B Red C Blue D Purple

10

Which of the following is a common base?

A Vinegar B Ammonia C Orange juice D Soda water

11

What is the color of litmus paper in a base?

A Blue B Red C Green D Yellow

12

What is the chemical formula for acetic acid?

A HCl B H2SO4 C HNO3 D CH3COOH

13

What is a base?

A A substance that produces hydrogen ions in water B A substance that produces hydroxide ions in water C A substance that is always solid D A substance that is always liquid

14

Which of the following is a strong base?

A Sodium hydroxide B Ammonia C Calcium hydroxide D Magnesium hydroxide

15

What happens when an acid reacts with a metal?

A Salt and water are produced B Salt and hydrogen gas are produced C Salt and carbon dioxide are produced D Water and carbon dioxide are produced

16

What is the chemical formula for nitric acid?

A HCl B H2SO4 C HNO3 D H2CO3

17

Which indicator turns red in acid and blue in base?

A Litmus paper B Phenolphthalein C Methyl orange D Turmeric

18

What is the chemical formula for sulfuric acid?

A HCl B H2SO4 C HNO3 D H2CO3

19

What is the pH of stomach acid?

A About 1 B About 7 C About 10 D About 12

20

What is the color of phenolphthalein in an acid?

A Colorless B Pink C Blue D Red

21

Which indicator is colorless in acid and pink in base?

A Litmus paper B Phenolphthalein C Methyl orange D Turmeric

22

What is the effect of acid on blue litmus paper?

A It turns blue B It turns red C It turns green D No change

23

Which of the following is a weak acid?

A Hydrochloric acid B Sulfuric acid C Acetic acid D Nitric acid

24

Which indicator is red in acid and yellow in base?

A Litmus paper B Phenolphthalein C Methyl orange D Turmeric

25

What is an acid?

A A substance that produces hydrogen ions in water B A substance that produces hydroxide ions in water C A substance that is always solid D A substance that is always liquid