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प्रश्न
Give an example of a chemical reaction for the following situation:
Sound is produced
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उत्तर
Burning of crackers produces a loud sound.
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संबंधित प्रश्न
What special name is given to their corrosion of iron?
The chemical reaction involved in the corrosion of iron metal is that of:
(a) oxidation as well as displacement
(b) reduction as well as combination
(c) oxidation as well as combination
(d) reduction as well as displacement
What is meant by 'rusting of iron'? With the help of labelled diagrams, describe an activity to find out the conditions under which iron rusts.
Name a common metal which is highly resistant to corrosion.
Name the metal which is a constituent of plant pigment?
Answer the following question.
a) What is meant by corrosion?
b) Write names of any two methods of prevention of corrosion.
c) In which method, metal like copper, aluminium are coated with a thin layer of their oxides by means of electrolysis.
d) Explain this method with diagram.
Find the odd man out:
Give reason for the following:
A suspension of rust is basic in nature.
Amalgam is an alloy of ____________.
State whether the following statement is true or false:
Ships suffer a lot of damage though they are painted.
