This chapter is currently out of syllabus
1
JEE Main 2023 (Online) 13th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which of the following are the Green house gases?

A. Water vapour

B. Ozone

C. I$$_2$$

D. Molecular hydrogen

Choose the most appropriate answer from the options given below :

A
A and D only
B
A and B only
C
B and C only
D
C and D only
2
JEE Main 2023 (Online) 13th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The radical which mainly causes ozone depletion in the presence of UV radiations is :

A
$$\mathrm{NO}^\cdot$$
B
$$\mathrm{CH}_{3} ^\cdot$$
C
$$\dot{\mathrm{Cl}}$$
D
$$\dot{\mathrm{O}} \mathrm{H}$$
3
JEE Main 2023 (Online) 12th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II

LIST I LIST II
A. Nitrogen oxides in air I. Eutrophication
B. Methane in air II. pH of rain water becomes 5.6
C. Carbon dioxide III. Global warming
D. Phosphate fertilisers in water IV. Acid rain

Choose the correct answer from the options given below :

A
A-II, B-III, C-I, D-IV
B
A-I, B-II, C-III, D-IV
C
A-IV, B-II, C-III, D-I
D
A-IV, B-III, C-II, D-I
4
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which of the following compounds is an example of Freon?

A
$$\mathrm{C}_{2} \mathrm{H}_{2} \mathrm{F}_{2}$$
B
$$\mathrm{C}_{2} \mathrm{HF}_{3}$$
C
$$\mathrm{C}_{2} \mathrm{F}_{4}$$
D
$$\mathrm{C}_{2} \mathrm{Cl}_{2} \mathrm{F}_{2}$$
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12