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Test: Environmental Chemistry (Old NCERT) - JEE MCQ


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25 Questions MCQ Test - Test: Environmental Chemistry (Old NCERT)

Test: Environmental Chemistry (Old NCERT) for JEE 2024 is part of JEE preparation. The Test: Environmental Chemistry (Old NCERT) questions and answers have been prepared according to the JEE exam syllabus.The Test: Environmental Chemistry (Old NCERT) MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Environmental Chemistry (Old NCERT) below.
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Test: Environmental Chemistry (Old NCERT) - Question 1

Stratosphere is a region of the atmosphere which contains

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Stratosphere contains Ozone layer

Test: Environmental Chemistry (Old NCERT) - Question 2

The gas emitted during volcanic eruptions is

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CO2 is the gas emitted during volcanic eruptions

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Test: Environmental Chemistry (Old NCERT) - Question 3

Unleaded paint and petrol were introduced because:

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Unleaded paint and petrol were introduced because lead affect the brain and cause mental impairment

Test: Environmental Chemistry (Old NCERT) - Question 4

Biochemical Oxygen Demand, (BOD) is a measure of organic material present in water. BOD value less than 5 ppm indicates a water sample to be __________.

Detailed Solution for Test: Environmental Chemistry (Old NCERT) - Question 4

This means water sample is rich in dissolved oxygen.

Test: Environmental Chemistry (Old NCERT) - Question 5

Catalytic converters must be used in cars to reduce the to reduce the effect of exhaust fumes on the atmosphere. The converter should contain one of the main components

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The converter should contain ceramic honeycomb coated with precious metals

Test: Environmental Chemistry (Old NCERT) - Question 6

Which of these is not released from burning fossil fuels?

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Currently, oil burning is responsible for about 30% of all carbon dioxide emissions to air. Natural gas does not release as much carbon,cooper dioxide because of its methane structure. The largest emissions are cause by coal combustion. Coal may result in underground fires that are virtually impossible to extinguish

Test: Environmental Chemistry (Old NCERT) - Question 7

This process in which nutrient enriched water bodies support a dense plant population, which kills animal life by depriving it of oxygen and results in subsequent loss of biodiversity, is called

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Eutrophication is the process in which nutrient enriched water bodies support a dense plant population, which kills animal life.

Test: Environmental Chemistry (Old NCERT) - Question 8

Chemical species present in the environment are either naturally occurring or generated by human activities. Their interrelation with the surroundings is called:

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environmental chemistry basically deals with the interrelationship between chemical species generated by human activities or naturally.

Test: Environmental Chemistry (Old NCERT) - Question 9

Which of the following statements is wrong?

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Depleation of Ozone is responsible for green house effect.

Test: Environmental Chemistry (Old NCERT) - Question 10

Requirement of macronutrient per acre of the land is

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Requirement of macronutrient per acre of the land is 5 to 200 kg

Test: Environmental Chemistry (Old NCERT) - Question 11

Tropospheric pollution is basically due to

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various oxides of sulphur, nitrogen, carbon, halogens causes Tropospheric pollution

Test: Environmental Chemistry (Old NCERT) - Question 12

Measure of the amount of organic material in the water, in terms of how much oxygen will be required to break it down biologically is termed as

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Measure of the amount of organic material in the water, in terms of how much oxygen will be required to break it down biologically is termed as Biochemical Oxygen Demand (BOD)

Test: Environmental Chemistry (Old NCERT) - Question 13

The greenhouse effect is where:

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The greenhouse effect is where heat energy is trapped by the atmosphere

Test: Environmental Chemistry (Old NCERT) - Question 14

Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water die because of

Detailed Solution for Test: Environmental Chemistry (Old NCERT) - Question 14

water pollution causes the death of fishes because of decrease in amount of dissolved oxygen.

Test: Environmental Chemistry (Old NCERT) - Question 15

 Three elements needed for the healthy growth of plants are

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The three elements Potassium, Phosphorus and Nitrogen are the most essential elements without which plants can’t thrive hence C is correct.

Test: Environmental Chemistry (Old NCERT) - Question 16

Acid rain is

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The gaseous pollutants come down to the earth in form of rain forms acid rain.

Test: Environmental Chemistry (Old NCERT) - Question 17

Recycling of materials and energy will lead to

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Recycling of materials and energy will lead to decrease in environmental pollution

Test: Environmental Chemistry (Old NCERT) - Question 18

The greenhouse effect is thought to be the cause of:

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The greenhouse effect increases the global temperature

Test: Environmental Chemistry (Old NCERT) - Question 19

Which of the following statements about photochemical smog is wrong?

Detailed Solution for Test: Environmental Chemistry (Old NCERT) - Question 19

photochemical smog has high concentration of oxidising agent.

Test: Environmental Chemistry (Old NCERT) - Question 20

Which of the following is not a secondary pollutant

Detailed Solution for Test: Environmental Chemistry (Old NCERT) - Question 20

CO2 is not secondary pollutant.

Test: Environmental Chemistry (Old NCERT) - Question 21

Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water die because of

Detailed Solution for Test: Environmental Chemistry (Old NCERT) - Question 21

water pollution causes the death of fishes because of decrease in amount of dissolved oxygen.

Test: Environmental Chemistry (Old NCERT) - Question 22

Reducing potentially hazardous waste through smarter productions is called

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‘Green Chemistry’ is defined as reducing potentially hazardous waste through smarter productions.

Test: Environmental Chemistry (Old NCERT) - Question 23

Global warming will not result in:

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Global warming will not increasing the size of the hole in the ozone layer

Test: Environmental Chemistry (Old NCERT) - Question 24

The gaseous envelope around the earth is known as atmosphere. The lowest layer of this is extended upto 10 km from sea level, this layer is _________.

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this is troposphere

Test: Environmental Chemistry (Old NCERT) - Question 25

Residence time of methane in the atmosphere is

Detailed Solution for Test: Environmental Chemistry (Old NCERT) - Question 25

Residence time of methane in the atmosphere is 3 - 7 years

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