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Q.

Fill in the blanks.

(a) Phosphorus is a very [[1]] non-metal.

(b) Metals are [[2]] conductors of heat and [[3]].

(c) Iron is [[4]] reactive than copper.

(d) Metals react with acids to produce [[5]] gas.

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Detailed Solution

(a) Phosphorus is a very reactive non-metal.

Phosphorus is a very reactive non-metal, when exposed to air it starts reacting vigorously, therefore it is kept in water.

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Fill in the blanks.(a) Phosphorus is a very [[1]] non-metal.(b) Metals are [[2]] conductors of heat and [[3]].(c) Iron is [[4]] reactive than copper.(d) Metals react with acids to produce [[5]] gas.