Iron nails are dipped into blue copper sulphates solution. After some time iron nails are

9th-class-result-2022

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Iron nails are dipped into blue copper sulphates solution. After some time iron nails are

Correct

not dissolved but blue colour is discharged

Incorrect

dissolved but blue colour is not discharged

Incorrect

Dissolved and blue colour is discharged

Incorrect

not dissolved and blue colour is not discharge

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