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Q3. Fill in the blanks.
(a) Phosphorus is a very _________non-metal.
(b) Metals are conductors of heat and ____________ .
(c) Iron is ____________reactive than copper.
(d) Metals react with acids to produce ____________ gas.
Answer :

(a) Phosphorus is a 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.