MEDIUM
JEE Main
IMPORTANT
Earn 100

A water sample has ppm level concentration of following anions, F-=10;SO42-=100;NO3-=50 . The anion/anions that make/makes the water sample unsuitable for drinking is/are

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Important Questions on Environmental Chemistry

EASY
JEE Main
IMPORTANT

How many of the following pollutants are considered as non-viable particulate pollutants?

Smoke, dust, fungi, mists, moulds, algae, smog, bacteria, fumes

EASY
JEE Main
IMPORTANT
The number of oxygen atoms present in the structure of peroxyacetyl nitrate (PAN) is --------.
HARD
JEE Main
IMPORTANT

How many of the following is/are the correct match.

(i) Photochemical smog:

CF2Cl2 (common component )

(ii) Ozone layer: Protects from the Sun's radiation of wavelength 255 nm

(iii) Methemoglobinemia : Caused by the presence of greater than 50 ppm of nitrate in drinking water

(iv) Ozone layer depletion:

ClO·(g)+O(g)Cl·(g)+O2(g) (one of the reaction involved)

(v) DDT: Biodegradable pollutant

(vi) Green house gas: Methane

EASY
JEE Main
IMPORTANT

How many of the following compounds can be categorized as primary air pollutants?

SO3, H2O2, NO2, H2SO4, N2O, CO, SO2, HNO3, CO2, NO

 

EASY
JEE Main
IMPORTANT

The number of greenhouse gases in the following is ____.
CO2, O2, N2O, CH4, CFCs, CO, H2Og, O3

Report your answer to the nearest integer.

EASY
JEE Main
IMPORTANT
How many of the following pollutants are considered as non-viable particulate pollutants? Smoke, dust, fungi, mists, moulds, algae, smog, bacteria, fumes
MEDIUM
JEE Main
IMPORTANT
Which of the following statements is false?
EASY
JEE Main
IMPORTANT
Which one of the following substances used in dry cleaning is a better strategy to control environmental pollution?