Which of the following can be beaten into thin sheets?
(a) Zinc(b) Phosphorus(c) Sulphur(d) Oxygen
Which of the following statements is correct?
(a) All metals are ductile.(b) All non-metals are ductile.(c) Generally, metals are ductile.(d) Some non-metals are ductile.
Phosphorus is very ________ non-metal.
Metals are _______ conductor of heat and ________.
Iron is ________ reactive than copper.
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