Which of the following statements is $NOT$ true according to the principles of green chemistry?
- AIt is good to use the technique of protection and deprotection of functional groups in organic synthesis.
- BUse of chemicals derived from plant resources is better than crude oil.
- CUse of biodegradable pesticides is advantageous.
- DUse of supercritical $CO_2$ as a solvent is better than organic solvents.
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Similar Questions
Which scientist first compared the Earth's atmosphere to a greenhouse effect,and when?
Medium
View SolutionMatch the following:
List-$I$ List-$II$ $A$. Insecticide $I$. $COD$ $B$. $K_2Cr_2O_7 / 50\% H_2SO_4$ $II$. $PAN$ $C$. Bleaching of clothes and paper $III$. $Na_3AsO_3$ $D$. Eye irritant $IV$. $BOD$ $V$. $H_2O_2$
The correct answer is:
| List-$I$ | List-$II$ |
|---|---|
| $A$. Insecticide | $I$. $COD$ |
| $B$. $K_2Cr_2O_7 / 50\% H_2SO_4$ | $II$. $PAN$ |
| $C$. Bleaching of clothes and paper | $III$. $Na_3AsO_3$ |
| $D$. Eye irritant | $IV$. $BOD$ |
| $V$. $H_2O_2$ |
The correct answer is:
DifficultAP EAMCET 2019
View SolutionThe cause of water pollution is due to
Easy
View SolutionThe depletion of ozone in the atmosphere by chlorofluorocarbons [$CCl_2F_2$] is a ...... statement.
Easy
View SolutionMatch the following:
| List-$I$ | List-$II$ |
| :--- | :--- |
| $A$. Methemoglobinemia | $I$. $1 \ ppm$ of dissolved oxygen in water |
| $B$. Kidney damage | $II$. $1000 \ ppb$ of lead in drinking water |
| $C$. Bones and teeth damage | $III$. $BOD$ of drinking water is $2 \ ppm$ |
| $D$. Growth of fish is stopped | $IV$. $2000 \ ppm$ of nitrates in drinking water |
| | $V$. $50 \ ppm$ of fluoride in drinking water |
| List-$I$ | List-$II$ |
| :--- | :--- |
| $A$. Methemoglobinemia | $I$. $1 \ ppm$ of dissolved oxygen in water |
| $B$. Kidney damage | $II$. $1000 \ ppb$ of lead in drinking water |
| $C$. Bones and teeth damage | $III$. $BOD$ of drinking water is $2 \ ppm$ |
| $D$. Growth of fish is stopped | $IV$. $2000 \ ppm$ of nitrates in drinking water |
| | $V$. $50 \ ppm$ of fluoride in drinking water |
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