Question

Which acid is present in curd?
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Answer 1

Answer:

lactic acid is present in curd

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Answer 2

Lactic Acid is present in curd.

Additional Information :)

What is acid?

• Acid is a substance which tastes sour.

• Acid turns a blue litmus paper red.

What is base?

• Base is a substance which tastes bitter and is slippery.
• Base turns a red litmus paper blue.

What is the neutralisation reaction?

When an acid and a base comes in contact a chemical reaction occurs and neutralises it. This process is known as the neutralisation reaction.

What are salts?

Salts are produced at the end of the neutralisation reaction.

What are indicators?

Indicators are substances that indicate if a substance is acidic or basic in nature.

What are natural indicators?

Natural indicators are indicators that are obtained from nature.

Some examples of indicators.

• Litmus - Litmus is extracted from lichens. When it is added to an acidic substance it turns red in colour. When it is added to a basic substance it turns blue in colour.

• Phenolphthalein -  Phenolphthalein is an indicator. When it is added to an acidic substance it turns colourless. When it is added to a basic substance it turns pink to red.