Advertisements
Advertisements
प्रश्न
Iron is _______.
विकल्प
more reactive than zinc
more reactive than aluminium
less reactive than copper
less reactive than aluminium
Advertisements
उत्तर
Iron is less reactive than aluminium.
APPEARS IN
संबंधित प्रश्न
Name the following:
Main ore of aluminium.
Define the Ore.
Name one metal which is extracted by reduction with aluminium.
Name one metal which is extracted by reduction with heat alone.
Why does aluminium not corrode right through?
Name the chemical compound which is electrolysed in molten state to obtain sodium metal. Which gas is produced in this process?
Name three other metals which are extracted in a manner similar to sodium.
How is copper extracted from its sulphide ore (copper glance), Cu2S? Explain with equations of the reactions involved.
Which of the following metals can be obtained from haematite ore?
(a) copper
(b) sodium
(c) zinc
(d) iron
Give the principles of the hydrolytic method.
Give reasons, why aluminum is used in:
wrapping chocolates
Give reasons, why aluminum is used in:
In aluminiothermy
Name the following:
The process in which an ore is heated in air so that oxygen gets added to it to form the oxides.
Name the following:
Name two metals always find in combined state.
What is meant by refining of metals? Name the three common methods used for refining.
Arrange the metals of copper, iron, magnesium, sodium and zinc in the decreasing order of reactivity.
Zinc sulphide : Roasting : : zinc carbonate : _______
Explain Bayer’s process of concentration of bauxite with a chemical equation.
The poorest conductor of heat among metals is ____________.
Which of the statements about the reaction, \[\ce{ZnO + CO -> Zn + CO2}\] is correct?
