Case Study-1: Chemical equation is a method of representing a chemical reaction with the help of symbol and formula of the substances involved in it. Consider the following reaction.
Pb(NO3)2 1, qPbo + rNO2 + SO2 On balancing the equation, the coefficients p, q, r and s respectively will be
Answers
Explanation:
Corrosion is the phenomenon of deterioration of surface of metal in presence of air and moisture. It is a natural process and in the presence of a moist atmosphere, chemically active metals get corroded. This is an oxidation reaction. Rusting is the process where iron corrodes due to exposure to the atmosphere. The main circumstance of corrosion occurs with iron because it is a structural material in construction, bridges, buildings, rail transport, ships, etc. Aluminium is also an important structural metal, but even aluminium undergoes oxidation reactions. However, aluminium doesn’t corrode or oxidize as rapidly as its reactivity suggests. Copper (Cu) corrodes and forms a basic green carbonate.
(i) What is rusting?
Answer
(ii) Which two metals do not corrode easily?
Answer
(iii) Write the chemical name of the compound formed on corrosion of silver.
Answer
Corrosion is the phenomenon of deterioration of surface of metal in presence of air and moisture. It is a natural process and in the presence of a moist atmosphere, chemically active metals get corroded. This is an oxidation reaction. Rusting is the process where iron corrodes due to exposure to the atmosphere. The main circumstance of corrosion occurs with iron because it is a structural material in construction, bridges, buildings, rail transport, ships, etc. Aluminium is also an important structural metal, but even aluminium undergoes oxidation reactions. However, aluminium doesn’t corrode or oxidize as rapidly as its reactivity suggests. Copper (Cu) corrodes and forms a basic green carbonate.
(i) What is rusting?
Answer
(ii) Which two metals do not corrode easily?
Answer
(iii) Write the chemical name of the compound formed on corrosion of silver.
Answer
Answer:
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