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प्रश्न
An iron nail is placed in a solution of copper sulphate.
The nail is taken out after 15 minutes. The nail will be found to be covered with ______.
पर्याय
blue deposit
brown deposit
grey deposit
green deposit
MCQ
रिकाम्या जागा भरा
उत्तर
An iron nail is placed in a solution of copper sulphate.
The nail is taken out after 15 minutes. The nail will be found to be covered with brown deposit.
Explanation:
Placing an iron nail in a copper solution for 15 minutes causes a displacement reaction, also known as a single replacement reaction. The iron nail will be coated with solid copper.
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