Q1. Extent of a chemical reaction depends on which all parameters? Solution Extent of any reaction depends on physical parameters like temperature, pressure and use of catalyst. Q2. What is green fuel? Solution Fuel obtained from plastic waste has high octane rating. It contains no lead and is known as green fuel. Q3. What is green chemistry? Solution Green chemistry is a strategy for controlling environmental pollution. It utilizes the existing knowledge and practices so as to bring about reduction in the production of pollutants. Q4. How the industrial wastes are sorted out? Solution The industrial wastes are sorted out as biodegradable and non-degradable wastes. Q5. What is smog? Solution The word smog is derived from smoke and fog and is the most common example of air pollution. Q6. What are the harmful effects of acid rain? Solution Acid rain is harmful for agriculture, trees and plants as it dissolves and washes away the nut...
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Q1. What is decarboxylation? How is methane prepared from sodium ethanoate? Solution Sodium salts of carboxylic acids on heating with soda lime (mixture of sodiumhydroxide and calcium oxide) gives methane with one carbon atom less than the carboxylic acid. CH 3 COO - Na + + NaOH CH 4 + Na 2 CO 3 Q2. What do the terms ortho-, meta or para- stand for? Solution The aromatic compounds containing the two groups at the adjacent positions, i.e. the 1,2-positions are called ortho, denoted as 'o-'.The aromatic compounds containing the two groups at the alternate positions, i.e. the 1,3-positions are called meta, denoted as 'm-'.The aromatic compounds containing the two groups at the diagonal positions, i.e. the 1,4-positions are called para-, denoted as 'p-'. Q3. Why alkanes are also known as paraffin? Solution Alkanes are relatively unreactive under ordinary conditions and so they are also known as paraffins. Q4. What...