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प्रश्न
Iron is _______.
पर्याय
more reactive than zinc
more reactive than aluminium
less reactive than copper
less reactive than aluminium
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उत्तर
Iron is less reactive than aluminium.
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संबंधित प्रश्न
Define the Ore.
In the extraction of aluminium: Write the function and formula of cryolite in the extraction of aluminium.
Name one metal which is extracted by:
Reduction with carbon.
Why does aluminium not corrode right through?
Name the gas produced when calamine ore is calcined.
Name two metals which are always found in combined state.
Describe the extraction of zinc metal from its sulphide ore (zinc blende). Write equations of the reactions involved.
The major ore of aluminium is known as ______.
The two metals which are extracted by means of electrolytic reduction of their molten salts are ______.
Which of the following metals can be obtained from haematite ore?
Rock salt is an ore of one of the following metals. This metal is:
Complete the incomplete statement with missing word:
Metals are malleable while non-metals are ______.
Complete the incomplete statement with missing word:
Non-metals form acidic oxides while metals form ______.
How many valence electrons are present in non- metals?
Name a non- metal that has a metallic luster and sublimes on heating.
Name the following:
A steel grey coloured solid non-metal.
Explain in brief types of extraction of moderately reactive metals according to their reactivity.
In extraction of copper, the flux used is ____________.
2 mL each of concentrated HCl, HNO3 and a mixture of concentrated HCl and concentrated HNO3 in the ratio of 3 : 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be
Care must be taken while diluting concentrated nitric acid with water. Why?
