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प्रश्न
Choose the correct alternative and rewrite the following:
Iron is _____________________.
विकल्प
More reactive than Zn.
more reactive than Al.
less reactive than Cu.
less reactive than Al.
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उत्तर
less reactive than Al
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संबंधित प्रश्न
Explain the term corrosion.
Which metals do not corrode easily?
Choose the correct answer from the options given below:
Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as
A. Smelting
B. Ore-dressing
C. Calcination
D. Bessemerisation
State two conditions for the rusting of iron.
Name any two metals which do not corrode easily.
What is the corrosion of iron known as?
Name a common metal which is highly resistant to corrosion.
Bronze is an alloy of ______.
Find the odd man out:
Give reason.
An iron article should be given a coat of paint
Draw a neat labelled diagram.
Electrolysis
What is rust?
Give solutions by giving examples of corrosion?
State two conditions necessary for rusting of iron.
Which among the following alloys contain mercury as one of its constituents?
Marble’s popularity began in ancient Rome and Greece, where white and off-white marble were used to construct a variety of structures, from hand-held sculptures to massive pillars and buildings.
The substance not likely to contain CaCO3 is:
Identify the correct statement from the following:
Gold plated ornaments is the example of ______.
Explain the chemical reactions in rusting of iron.
Describe two changes that are harmful. Explain why you consider them harmful. How can you prevent them?
