Q.

Which acid is present in the lemon juice acts as an electrolyte.


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a

Sulphuric Acid

b

Nitric Acid

c

Hydrochloric Acid

d

Citric Acid 

answer is D.

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Detailed Solution

Concept- An acid is defined as any substance that releases a hydrogen ion or proton as the only positive ion in an aqueous solution. Most ionic liquids can act as electrolytes.
Now, the acids that are found in naturally available substances and foods are generally organic acids. The most common examples of the naturally available organic acids are the tartaric acid found in the tamarind, formic acid in bee’s sting and ant’s bite, vitamin-C found in most of the citrus fruits like lemons, oranges, etc. The acids present in lemon juice are ascorbic acid or vitamin-C and the citric acids.
Thus, the citric acid present in the lemon juice acts as an electrolyte.
Hence, the correct option is (4).
 
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