1
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The statements that are TRUE :

(A) Methane leads to both global warming and photochemical smog

(B) Methane is generated from paddy fields

(C) Methane is a stronger global warming gas than CO2

(D) Methane is a part of reducing smog

Choose the most appropriate answer from the options given below :
A
(A), (B), (C) only
B
(A) and (B) only
C
(B), (C), (D) only
D
(A), (B), (D) only
2
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Match List - I with List - II

List - I
List - II
(a) $$Ca{(OCl)_2}$$ (i) Antacid
(b) $$CaS{O_4}.{1 \over 2}{H_2}O$$ (ii) Cement
(c) $$CaO$$ (iii) Bleach
(d) $$CaC{O_3}$$ (iv) Plaster of paris


Choose the most appropriate answer from the options given below :
A
(a) - (i), (b) - (iv), (c) - (iii), (d) - (ii)
B
(a) - (iii), (b) - (ii), (c) - (iv), (d) - (i)
C
(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
D
(a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)
3
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Compound with molecular formula C3H6O can show :
A
Positional isomerism
B
Both positional isomerism and metamerism
C
Metamerism
D
Functional group isomerism
4
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct structures of trans-[NiBr2(PPh3)2] and meridonial-[Co(NH3)3(NO2)3], respectively, are
A
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Coordination Compounds Question 126 English Option 1
B
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Coordination Compounds Question 126 English Option 2
C
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Coordination Compounds Question 126 English Option 3
D
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Coordination Compounds Question 126 English Option 4
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