Metals and Non-...

Which of the following elements cannot be beaten into thin wires?

Which of the following element is non-malleable?

The major products of the following reaction is:
$$ZnS(s)+{ O }_{ 2 }(g)\xrightarrow [  ]{ heat } $$

Red hot carbon will remove oxygen from the oxides $$XO$$ and $$YO$$ but not from $$ZO. Y$$ will remove oxygen from $$XO$$. Use this evidence to deduce the order of activity of the three metals $$X, Y$$ and $$Z$$ putting the most active first.

Which of the following is not essential for rust to form?

Iodine is a :

Non-metals exist in which state?

Metals are solid at room temperature except: 

Which of the following is true in case of electrolytic refining?

Which of the following is a characteristic property of non-metals?