Question

iron nail sinks in water but not in Mercury why?​

Answer 1

Answer:

because mercury reacts with iron

Answer 2

Answer:

we can see that the density of iron nails is greater than water, hence sink in it and is lesser than mercury and hence float.

Explanation:

Why does an iron nail sink in water but float in mercury?

Density of iron is less than the density of mercury; hence, an iron nail floats in mercury and density of iron is more than the density of water; hence, an iron nail sinks in water.