When sulfur dioxide gas is passed through lime water,which insoluble substance is formed that turns the solution milky?

Which gas has a pungent smell that causes choking and coughing?

Which non-metal element is a conductor of electricity?

Name two metals which have very low melting points.

Generally,non-metals are not conductors of electricity. Which of the following is a good conductor of electricity?

Name the following:
$(a)$ $A$ metal which is preserved in kerosene.
$(b)$ $A$ lustrous coloured non-metal.
$(c)$ $A$ metal which can melt while kept on palm.
$(d)$ $A$ metal which is a poor conductor of heat.