How will you test whether a given rod is a magnet or not?

How will you test whether a given rod is made of iron or not?

How will you test whether a given rod is made of iron or copper?

How will test whether a given solid has been purified or not ?

How would you test a Pea plant whether it is a pure or hybrid for tallness?

To test whether a given clear liquid is water, of the following methods, the best one could be

You are given a bar. How will you identify experimentally whether it is made of a ferro-magnetic, paramagnetic or a diamagnetic material?

How would you decide whether the two given compounds are homologues or not?

Define electrochemical series. How it helps to predict whether a given reaction is feasible in a given direction or not?

How will you detect the presence of starch in given plant tissue?