1
WB JEE 2020
MCQ (More than One Correct Answer)
+2
-0
Change Language
Which of the following statement(s) is/are incorrect?
A
A sink of SO2 pollutant is O3 in the atmosphere
B
FGD is a process of removing NO2 from atmosphere
C
NOx in fuel gases can be removed by alkaline scrubbing
D
The catalyst used to convert CCl4 to CF4 by HF is SbF5
2
WB JEE 2020
MCQ (More than One Correct Answer)
+2
-0
Change Language
SiO2 is attacked by which one/ones of the following?
A
HF
B
Conc.HCl
C
Hot NaOH
D
Fluorine
3
WB JEE 2019
MCQ (More than One Correct Answer)
+2
-0.67
Change Language
Which of the following chemicals may be used to identify three unlabelled beakers containing conc. NaOH, conc. H2SO4 and water?
A
NH4NO3
B
NaCl
C
(NH4)2CO3
D
HCOONa
4
WB JEE 2018
MCQ (More than One Correct Answer)
+2
-0
Change Language
White phosphorus P4 has the following characteristics
A
6P $$-$$ P single bonds
B
4P $$-$$ P single bonds
C
4 lone pair of electrons
D
P $$-$$ P $$-$$ P angle of 60$$^\circ$$
WB JEE Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12