The industrial activity held least responsible for global warming is :

Electricity generation in thermal power plants.

How can photochemical smog be controlled?

By using catalytic converters in the automobiles/industry

The normal rain water is slightly acidic and its pH value is 5 . 6 because of which one of the following ?

2 SO 2 + O 2 + 2 H 2 O → 2 H 2 SO 4

4 NO 2 + O 2 + 2 H 2 O → 4 HNO 3

Given below are two statements : Statement I : H 2 O 2 is used in the synthesis of Cephalosporin Statement II : H 2 O 2 is used for the restoration of aerobic conditions to sewage wastes. In the light of the above statements, choose the most appropriate answer from the options given below :

Both Statement I and Statement II are correct

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are incorrect

Identify X , Y and Z in the following reaction. (Equation not balanced) Cl O ∙ + NO 2 → X ¯ ⟶ H 2 O Y ¯ + Z ¯

X = ClONO 2 , Y = HOCl , Z = HNO 3

X = ClONO 2 , Y = HOCl , Z = NO 2

X = ClNO 2 , Y = HCl , Z = HNO 3

X = ClNO 3 , Y = Cl 2 , Z = NO 2

The water quality of a pond was analysed and its BOD was found to be 4 . The pond has

Water has high amount of fluoride compounds

Some reactions of NO 2 relevant to photochemical smog formation are Identify A , B , X and Y

X = [ O ] , Y = NO , A = O 2 , B = O 3

X = N 2 O , Y = [ O ] , A = O 3 , B = NO

X = 1 2 O 2 , Y = NO 2 , A = O 3 , B = O 2

X = NO , Y = [ O ] , A = O 2 , B = N 2 O 3

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 16 - Environmental Chemistry>JEE Main 17 March 2021 Shift 2>Q 3

EASY

JEE Main

IMPORTANT

Earn 100

The set that represents the pair of neutral oxides of nitrogen is:

50% studentsanswered this correctly

Important Questions on Environmental Chemistry

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 16 - Environmental Chemistry>JEE Main 17 March 2021 Shift 2>Q 4

Which of the following statement(s) is (are)
incorrect reason for eutrophication?
(A) excess usage of fertilisers
(B) excess usage of detergents
(C) dense plant population in water bodies
(D) lack of nutrients in water bodies that prevent plant growth

Choose the most appropriate answer from the options given below :