Which of the following solvents reduces the environmental pollution?
- AWater
- BDichloromethane
- CTrichloromethane
- DTetrachloromethane
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The correct set of species responsible for the photochemical smog is
What are biodegradable and non-biodegradable pollutants?
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View SolutionWhich one of the following depletes the ozone layer?
DifficultAIEEE 2012
View SolutionGiven below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R:$
Assertion $A:$ Polluted water may have a value of $BOD$ of the order of $17 \, ppm$.
Reason $R:$ $BOD$ is a measure of oxygen required to oxidise both the biodegradable and non-biodegradable organic material in water.
In the light of the above statements,choose the most appropriate answer from the options given below.
Assertion $A:$ Polluted water may have a value of $BOD$ of the order of $17 \, ppm$.
Reason $R:$ $BOD$ is a measure of oxygen required to oxidise both the biodegradable and non-biodegradable organic material in water.
In the light of the above statements,choose the most appropriate answer from the options given below.
Which of the following chemicals is not involved in photochemical smog formation?
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