Neutralisation

Question 1

What is an indicator?

Answer 1

An indicator is a chemical which changes colour in acids, alkalis and neutral soloutions

Question 2

What is a base?

Answer 2

A base is a substance that reacts with an acid producing salt and water

Question 3

What is an alkali?

Answer 3

An alkali is a soluble base

Question 4

What is neutralisation?

Answer 4

Neutralisation is the reaction between an acid and an alkali producing salt and water

Question 5

What is a salt?

Answer 5

A salt is a compound formed when some or all of the hydrogen ions get changed into metal or ammonium ions.

Question 6

What colour does universal indicator change to in a Acid , Alkali and neutral solution?

Answer 6

Red , Purple, Green

Question 7

What colour does phenolphthalein in an acid , alkali and neutral solution

Answer 7

Colourless , pink , colourless

Question 8

What colour does screened methyl orange turn in an acid , Alkali and neutral solution?

Answer 8

Orange , green , green

Question 9

What colour does methyl orange turn into in an acid , alkali and neutral solution?

Answer 9

Red , orange-yellow, orange

Question 10

Potassium hydroxide + sulphuric acid->

Answer 10

Potassium sulphate + water

Question 11

Sulfuric acid + copper carbonate->

Answer 11

Copper sulfate + water + co2

Question 12

Name 3 examples of neutralisation

Answer 12

Indigestion remedies,
Lime to neutralise soil in farming,
Vinegar on a wasp sting to neutralise the alkali

Question 13

Acid + metal-> ?

Answer 13

Salt + Hydrogen

Question 14

Acid + alkali-> ?

Answer 14

Salt + water

Question 15

Acid + base-> ?

Answer 15

Salt + water

Question 16

Acid + metal carbonate->

Answer 16

Salt + water + co2