a student puts on
iron is more reactive than copper and hence it can displace only copper from its salt. iron is less reactive as compared to aluminium or zinc so they will not be displaced from their salts. also iron will not react with its own salt. so the reddish brown coating on surface of nail is of copper deposition which will be observed only in case of iron nail dipped in copper sulphate solution.so the correct answer is c.
it is a good option posture that's a bit of an ovary-action. dear student,
i b mcleery
ii c hastily
iii d rubber ring
iv a to ensure that he had no objectionable material with him
regards she looks kind of sleazy and slutty jesus is awesome! dear student,
![](https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5aa26a6d93cc4%20jpg)
regards A yellow dare devil. girl. i think he likes you. you definitely got a chance! and that one is fixed now. ^^