Which of the following pairs of ‘Natural source – Acid’ is NOT correctly matched?

Tamarind – Oxalic acid

The correct answer is Option (1) -Tamarind – Oxalic acid

Out of the listed options, the incorrect pair is:Tamarind - Oxalic acid

While tamarind does contain some oxalic acid, it's not the primary acid found in it. Here's the breakdown:

• Vinegar - Acetic acid: This is a correct match. Vinegar is produced through the fermentation of sugars by acetic acid bacteria, resulting in vinegar containing acetic acid.
• Curd - Lactic acid: This is another correct match. Lactic acid is produced by bacteria during the fermentation of milk sugars, leading to the sour taste of curd.
• Orange - Citric acid: This is a well-known match. Citric acid is abundant in citrus fruits like oranges, giving them their tart flavor.
• Tamarind - Oxalic acid: Tamarind contains acid is tartaric acid, which contributes to its sour taste.

Therefore, tamarind and oxalic acid aren't the most accurate pairing.