Question

Which of the following is acidic in nature?
A.Apple Juice
B.Soap Solution
C.Slaked lime
D.None of the above

Answer 1

Hint: The compounds which have the property to donate protons and accept electrons are termed as acid in nature. Most of these compounds donate either Hydrogen ion or \[{H_3}{O^ + }\] ions and hence are termed as acids. Also the fruits have organic acid in them.

Complete step by step answer:
Let’s start with discussing the acidic nature of compounds for better understanding of the question. The compounds which have the property to donate protons and accept electrons are termed as acid in nature. Most of these compounds donate either Hydrogen ion or \[{H_3}{O^ + }\] ions and hence are termed as acids. The acidic nature of a compound is neutralized by the addition of base in it.
Coming back to the question we need to find the compound out of Apple juice, Soap solution and slaked lime which is acidic in nature. Generally soap shows a basic character as it’s made of strong base and weak acid, hence soap solution is not acidic in nature. Slaked lime is calcium hydroxide and calcium hydroxide is having the chemical formula of \[Ca{\left( {OH} \right)_2}\] which tells us that it is also basic in nature. Coming to apple juice, Apple juice is having malic acid which makes it acidic in nature. Hence Apple juice is acidic in nature.
So, the answer to this question is option A. Apple Juice.
$\therefore $ Option A (Apple juice) is the correct answer.


Note:
Most of the fruits have acids in it with citrus fruits such as orange is the most acidic one. The acid present is fruits are all organic acids which are generally weak compared with inorganic acids. The acid in orange, in citric acid, in apple is malic acid and all these acids found in fruits are edible in nature.