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Q.

The pH of a tomato juice is:


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a

1

b

4

c

7

d

14 

answer is B.

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Detailed Solution

Concept- The litmus paper is a type of paper that changes colour according to the acidity of the solution it is dipped in and hence can be used to measure acidity.
The pH is a measure of the acidic nature or basic nature of a substance. It is also used to determine the hydrogen ion concentration in a solution.
For acidic substances, pH <7  .
For neutral substances, pH = 7  
For basic substances, pH >7  
There are some natural foods that are acidic in nature. Tomato is one of them and it is acidic due to the presence of lycopene.
Therefore, the pH   range of tomato juice is between 4.1   to 4.6  .
Hence, the correct option is 2.
 
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