6. 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 neutralise 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)

Deepak Patra , 11 Years ago

Grade upto college level