Question

2ml of vinegar is taken in a test tube. dip a blue litmus paper in it ,what is the observation and inference?​

Answer 1

Answer:

we observe that the blue litmus paper turns red. its shows acidic and basic in nature.

Explanation:

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Answer 2

The observation is:

• BLUE LITMUS TURNS RED

But why ?

• First of all, vinegar is chemically acetic acid, it's IUPAC name is ETHANOIC ACID.

• So, vinegar is an acidic substance.

• Now, litmus is an chemical indicator of acidic/basic environment.

• Now, blue litmus turns red in acidic environment, and red litmus turns blue in basic medium.

Hence, when blue litmus is put in a test tube with vinegar, there is change in ionisation of litmus, hence there is change in colour to red.

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