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