Fill in the blanks.
(a) ………… is a good conductor of heat and electricity.
(b) Fullerene is an ………… of carbon.
(c) ………… turns limewater milky.
(d) Charcoal is an ………… of carbon.
(e) Diamond is a ………… conductor of electricity.
(d) A biogas plant produces ………… gas.
(a) Graphite is a good conductor of heat and electricity.
(b) Fullerene is an allotrope of carbon.
(c) Carbon dioxide turns limewater milky.
(d) Charcoal is an allotrope of carbon.
(e) Diamond is a bad conductor of electricity.
(d) A biogas plant produces methane gas.