Mark ‘T’ if the statement is true and ‘F’ if it is false
(i) Nitric acid turn red litmus blue. (T/F)
(ii) Sodium hydroxide turns blue litmus red. (T/F)
(iii) Sodium hydroxide and hydrochloric acid neutralize each other and form salt and water. (T/F)
(iv) Indicator is a substance which shows different colours in acidic and basic solutions. (T/F)
(v) Tooth decay is caused by the presence of a base. (T/F)
Mark ‘T’ if the statement is true and ‘F’ if it is false
(i) Nitric acid turn red litmus blue. (T/F)
(ii) Sodium hydroxide turns blue litmus red. (T/F)
(iii) Sodium hydroxide and hydrochloric acid neutralize each other and form salt and water. (T/F)
(iv) Indicator is a substance which shows different colours in acidic and basic solutions. (T/F)
(v) Tooth decay is caused by the presence of a base. (T/F)
(i) 
i. False
Nitric acid will not change the colour of red litmus paper
(ii) False
Bases turn the red litmus paper to blue
(iii) True
In the reaction between an acid and a base, salt and water are formed
(iv) True
Indicators are used to identify whether a solution is acidic or basic. Example: Litmus paper show different colours in acidic and basic mediums.
(v) False
Tooth decay is caused by the presence of an acid.
i. False
Nitric acid will not change the colour of red litmus paper
(ii) False
Bases turn the red litmus paper to blue
(iii) True
In the reaction between an acid and a base, salt and water are formed
(iv) True
Indicators are used to identify whether a solution is acidic or basic. Example: Litmus paper show different colours in acidic and basic mediums.
(v) False
Tooth decay is caused by the presence of an acid.
