Q35 of 37 Page 336

How do you condemn the use of alcohol as a social practice.

i. Consumption of small quantities of dilute ethanol shows its effect even though is condemned still it has remained socially widespread practice.


ii. Consumption of alcohol harms health in a number of ways.


iii. It adversely affects the physiological processes.


iv. It damages the central nervous system.


v. Consumption of even a small quantity of pure ethanol (called absolute alcohol) can be lethal.


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33

Draw the electronic dot structure of ethane molecule (C2H6).

 34

How do you appreciate the role of esters in everyday life.

 36

An organic compound with molecular formula C2H4O2 produces brisk effervescence on addition of sodium carbonate /bicarbonate. Answer the following

a. Identify the organic compound.


b. Write the chemical equation for the above reaction.


c. Name the gas evolved.


d. Now will you test the gas evolved?


e. List two important uses of the above compound.

 37

I ml glacial acetic acid and I ml of ethanol arc mixed together in a test tube. Few drops of concentrate sulphuric acid is added in the mixture are warmed in a water bath for 5 min. Answer the following

a. Name the resultant compound formed.


b. Represent the above change by a chemical equation.


c. What term is given to such an reactions.


d. What are the special characteristics of the compound formed?