Correct option is C
The correct answer is: (C). Sodium Hydroxide.
- Sodium Hydroxide (NaOH) is a strong base, and bases turn pH paper blue or green depending on the concentration. A blue color indicates a moderately alkaline solution.
Why other options are incorrect:
- Lemon juice: It is acidic and would turn pH paper red or orange.
- Gastric juice: It contains hydrochloric acid, which is acidic and would also turn pH paper red.
- Hydrochloric acid: It is a strong acid and would turn pH paper red.
In conclusion, only Sodium Hydroxide will turn the pH paper blue, indicating a basic solution.
Some key facts about Sodium Hydroxide :
- Sodium Hydroxide is commonly known as caustic soda or lye.
- Its chemical formula is NaOH
- Sodium hydroxide solutions are highly basic, typically having a pH of 13-14.
English
100 Questions
100 Marks
90 Mins
