Question 1

Which of the following is not a characteristic of bases?

Accepted Answer

They turn red litmus paper blue

Answer

They are proton donors

Answer

They have a pH greater than 7

Answer

They feel slippery to the touch

Question 2

Which of the following is a product of a neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?

Accepted Answer

Water and sodium chloride (NaCl)

Answer

Hydrogen gas and calcium carbonate

Answer

Carbon dioxide and water

Answer

Nitric acid and sodium hydroxide

Question 3

Which of the following is a common indicator used to distinguish between acids and bases?

Accepted Answer

Litmus paper

Answer

Filter paper

Answer

Aluminum foil

Answer

Plastic wrap

Question 4

What is the pH of a neutral solution?

Accepted Answer

7

Answer

1

Answer

10

Answer

14

Question 5

What happens when an acid reacts with a base?

Accepted Answer

A neutralization reaction occurs

Answer

A combustion reaction occurs

Answer

An oxidation reaction occurs

Answer

No reaction occurs

Question 6

Which of the following is a characteristic of acids?

Accepted Answer

They turn blue litmus paper red

Answer

They turn red litmus paper blue

Answer

They feel slippery to the touch

Answer

They have a pH greater than 7

Question 7

What type of ions do acids produce in aqueous solutions?

Accepted Answer

Hydronium ions

Answer

Hydroxide ions

Answer

Chloride ions

Answer

Sodium ions

Question 8

What is the name of the compound formed when an acid and a base react in a neutralisation reaction?

Accepted Answer

Salt

Answer

Alcohol

Answer

Sugar

Answer

Oxygen

Question 9

What happens to the pH of a solution when a strong acid is added to it?

Accepted Answer

Decreases

Answer

Becomes basic

Answer

Increases

Answer

Remains constant

Question 10

What is the product of the neutralisation reaction between nitric acid (HNO3) and sodium hydroxide (NaOH)?

Accepted Answer

Sodium nitrate and water

Answer

Sodium chloride and water

Answer

Ammonium nitrate and water

Answer

Hydrogen gas and oxygen gas

Question 11

Which of the following statements best describes a basic solution?

Accepted Answer

It has a pH greater than 7

Answer

It has a pH less than 7

Answer

It has a sour taste

Answer

It turns blue litmus paper red

Question 12

What is the chemical formula for sulfuric acid?

Accepted Answer

H2SO4

Answer

HCl

Answer

HNO3

Answer

NaOH

Question 13

What is the chemical formula for hydrochloric acid?

Accepted Answer

HCl

Answer

NaOH

Answer

NH3

Answer

H2SO4

Question 14

Which statement best describes a neutralisation reaction?

Accepted Answer

Acid reacts with a base to form salt and water

Answer

Base reacts with a salt to form acid and water

Answer

Salt reacts with a base to form acid and water

Answer

Acid reacts with an acid to form salt and water

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