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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 the corrosion of iron?
Why is an iron grill painted frequently?
Name five methods of preventing rusting of iron.
Brass is an alloy of:
(a) Cu and Sn
(b) Cu and Pb
(c) Pb and Sn
(d) Zn and Cu
Mention two uses of the following metals and non-metals
Iron
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.
Give reason for the following:
A suspension of rust is basic in nature.
When one of the metals in an alloy is mercury the alloy is called _______.
Find the odd one out and give its explanation.
Explain the following:
Lime water turns milky on passing carbon dioxide gas into it.
