1
JEE Main 2020 (Online) 4th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the following compounds, which one has the shortest C – Cl bond?
A
H3C - Cl
B
JEE Main 2020 (Online) 4th September Evening Slot Chemistry - Haloalkanes and Haloarenes Question 92 English Option 2
C
JEE Main 2020 (Online) 4th September Evening Slot Chemistry - Haloalkanes and Haloarenes Question 92 English Option 3
D
JEE Main 2020 (Online) 4th September Evening Slot Chemistry - Haloalkanes and Haloarenes Question 92 English Option 4
2
JEE Main 2020 (Online) 4th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The processes of calcination and roasting in metallurgical industries, respectively, can Iead to :
A
Global warming and photochemical smog
B
Photochemical smog and ozone layer depletion
C
Photochemical smog and global warming
D
Global warming and acid rain
3
JEE Main 2020 (Online) 4th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The incorrect statement(s) among (a) - (c) is (are)

(a) W(VI) is more stable than Cr(VI).

(b) In the presence of HCl, permanganate titrations provide satisfactory results.

(c) Some lanthanoid oxides can be used as phosphors.
A
(a) and (b) only
B
(a) only
C
(b) only
D
(b) and (c) only
4
JEE Main 2020 (Online) 4th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The process that is NOT endothermic in nature is :
A
Ar(g) + e- $$ \to $$ Ar-(g)
B
H(g) + e- $$ \to $$ H-(g)
C
Na(g) $$ \to $$ Na+(g) + e-
D
O-(g) + e- $$ \to $$ O2-(g)
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