Look at the figure given below and answer the following questions:
A. Before adding
sulphuric acid
B. After adding
sulphuric acid
Sugar
charcoal
Sugar
Action of conc. H2SO4 on Sugar
What kind of change is shown in the diagram? Justify your answer.
Q4. If you leave a piece of iron in the open for a few days, it acquires a film of brownish
substance, called rust.
i. Do you think rust is different from iron?
ii. Can you change rust back into iron by some simple method?
iii. Do you think formation of rust from iron is a chemical change?
iv. Give two other examples of a similar type of change.
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Answer:
where is the figure given below???
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