Fill in the blanks:(a) Phosphorus is very _____ non-metal.(b) Metals are ____ conductors of heat and ____ .(c) Iron is ______ reactive than copper.(d) Metals react with acids to produce _____ gas.
Solution:
(a) Phosphorus is very reactive non-metal. (b) Metals are good conductors of heat and electricity. (c) Iron is more reactive than copper. (d) Metals react with acids to produce hydrogen gas.