JEE Main 2019 (Online) 8th April Morning Slot | Environmental Chemistry Question 57 | Chemistry

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

Assertion: Ozone is destroyed by CFCs in the upper stratosphere.

Reason: Ozone holes increase the amount of UV radiation the earth.

Assertion and reason are both correct, and the reason is the correct explanation for the assertion.

Assertion and reason are incorrect.

Assertion and reason are correct but, the reason is not the explanation for the assertion

Assertion is false, but the reason is correct.

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

Which is wrong with respect to our responsiblity as a human being to protect our environment ?

Restricting the use of vehicles

Setting up compost tin in gardens.

Avoiding the use of floodlighted facilities

Using plastic bags.

JEE Main 2019 (Online) 12th January Evening Slot

MCQ (Single Correct Answer)

-1

The compound that is NOT a common component of photochemical smog is

O₃

JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Environmental Chemistry Question 59 English Option 2

CH₂ = CHCHO

CF₂Cl₂

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

-1

The molecule that has minimum /no role in the formation of photochemical smog, is -

CH₂ = O

O₃

N₂

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