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Mixtures

An iron nail ...

Question

An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull?

A

Mustard oil

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B

Soft drink

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C

Coconut oil

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D

Kerosene

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Solution

The correct option is B Soft drink
Answer- b) Soft drink

An iron nail kept in a soft drink will lose its shine and appear dull because it has carbonic acid dissolved in it. Iron reacts with it and loses its shiny appearance.

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Similar questions

Question 1

An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull ?

(a) Mustard oil

(b) Soft drink

(c) Coconut oil

(d) Kerosene

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Q. Some metals often lose their shine and appear dull, because of the action of air and moisture.

Q. Why does the colour of copper sulphate change when an iron nail is kept in it? Justify your answer.

If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to ___ of copper.

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