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What Do You Observe When : an Iron Nail is Kept in Tap Water for Few Days

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Question

What do you observe when :

an iron nail is kept in tap water for few days

One Line Answer
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Solution

We observe reddish brown coating on the nail called rust (entirely new substance) is chemical change.

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Chapter 2: Physical and Chemical Changes - Exercise

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S.P. Singh Concise Chemistry [English] Class 7 ICSE
Chapter 2 Physical and Chemical Changes
Exercise | Q 8.5
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