The flux CaO is used to remove gang.This is getting from

Which of the following substances is malleable?

Metals are seperated from

Ammonia can be found in both free state and combined state. Which of the following alternatives does not give a source of ammonia?

Which of the following metals is liquid at room temperature?

Name the odd one from the following

Which are the  alloys of zinc?

For removing the impurity SiO₂ which is used as flux?

Which of the following substances cannot be used as a starting material for the preparation of ammonia?

Raju made an electric circuit to test the electrical conductivity of different substances, namely an iron nail, a plastic wire, an eraser, and a candle. He inserted each of these substances in the circuit between terminals X and Y (as shown in the given figure).          

The insertion of which of the following substances will make the bulb glow in the given circuit?