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प्रश्न
Complete the incomplete statement with missing words:
Metals are ______ while non-metals are ______ conductors of heat.
उत्तर
Metals are good while non-metals are poor conductors of heat.
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संबंधित प्रश्न
Which metal becomes black in the presence of hydrogen sulphide gas in air?
Name two metals which are found in nature mainly in the free state (as metallic elements).
Name the electrode at which aluminium metal is produced.
An ore of manganese metal is:
(a) bauxite
(b) haematite
(c) cuprite
(d) pyrolusite
Which of the following is an iron ore?
(a) cinnabar
(b) calamine
(c) haematite
(d) rock salt
Some metallic oxides can be reduced by hydrogen, carbon and carbon monoxide and some cannot. Explain.
Name the following:
The process in which an ore is heated in air so that oxygen gets added to it to form the oxides.
Iron is _______.
Identify who I am!
Ore of Aluminum- ______
Which of the following metals exist in their native state in nature?
(i) Cu
(ii) Au
(iii) Zn
(iv) Ag
