test 1 (Litmus Test): Take two strips of blue litmus paper. place a drop each of the alcohol and carboxylic acid on these strips separately. The blue litmus paper turns red in the case of carboxylic acid and remains unaffected in the case of alcohol. Test 2 (Sodium Hydrogen Carbonate Test/Sodium CarRead more
test 1 (Litmus Test): Take two strips of blue litmus paper. place a drop each of the alcohol and carboxylic acid on these strips separately. The blue litmus paper turns red in the case of carboxylic acid and remains unaffected in the case of alcohol.
Test 2 (Sodium Hydrogen Carbonate Test/Sodium Carbonate Test): A pinch of sodium hydrogen carbonate or sodium carbonate is added separately in both. If brick effervescence with the evolution of a colorless gas is observed, it indicates the presence of carboxylic acid. If no change is observed, it confirms the presence of alcohol.
Test 3 (Ester Test) or any other suitable test.
Biodiversity: It is the number and range of variety of species of life forms in an area. Effect Loss of diversity may lead to a loss of ecological stability.
Biodiversity: It is the number and range of variety of species of life forms in an area.
Effect Loss of diversity may lead to a loss of ecological stability.
Two causes of pollution of the river Ganga: (l) Disposal of industrial effluents. (ii) Human activities like bathing, washing, immersion of ashes, etc. (iii) Disposal of untreated sewage. Harmful effects on health - Spreads water-borne diseases. - Consumptions of contaminated fishes.
Two causes of pollution of the river Ganga:
(l) Disposal of industrial effluents.
(ii) Human activities like bathing, washing, immersion of ashes, etc.
(iii) Disposal of untreated sewage.
Harmful effects on health
– Spreads water-borne diseases.
– Consumptions of contaminated fishes.
List two tests for experimentally distinguishing between an alcohol and a carboxylic acid and describe how these tests are performed.
test 1 (Litmus Test): Take two strips of blue litmus paper. place a drop each of the alcohol and carboxylic acid on these strips separately. The blue litmus paper turns red in the case of carboxylic acid and remains unaffected in the case of alcohol. Test 2 (Sodium Hydrogen Carbonate Test/Sodium CarRead more
test 1 (Litmus Test): Take two strips of blue litmus paper. place a drop each of the alcohol and carboxylic acid on these strips separately. The blue litmus paper turns red in the case of carboxylic acid and remains unaffected in the case of alcohol.
See lessTest 2 (Sodium Hydrogen Carbonate Test/Sodium Carbonate Test): A pinch of sodium hydrogen carbonate or sodium carbonate is added separately in both. If brick effervescence with the evolution of a colorless gas is observed, it indicates the presence of carboxylic acid. If no change is observed, it confirms the presence of alcohol.
Test 3 (Ester Test) or any other suitable test.
What is biodiversity? What will happen if biodiversity of an area is not preserved? Mention one effect of it.
Biodiversity: It is the number and range of variety of species of life forms in an area. Effect Loss of diversity may lead to a loss of ecological stability.
Biodiversity: It is the number and range of variety of species of life forms in an area.
See lessEffect Loss of diversity may lead to a loss of ecological stability.
List two main causes of the pollution of water of the river Ganga. State how pollution and contamination of river water prove harmful for the health of the people of neighbouring area.
Two causes of pollution of the river Ganga: (l) Disposal of industrial effluents. (ii) Human activities like bathing, washing, immersion of ashes, etc. (iii) Disposal of untreated sewage. Harmful effects on health - Spreads water-borne diseases. - Consumptions of contaminated fishes.
Two causes of pollution of the river Ganga:
See less(l) Disposal of industrial effluents.
(ii) Human activities like bathing, washing, immersion of ashes, etc.
(iii) Disposal of untreated sewage.
Harmful effects on health
– Spreads water-borne diseases.
– Consumptions of contaminated fishes.