Physical Chemistry
Some Basic Concepts of Chemistry
MCQ (Single Correct Answer)Chemical Equilibrium
MCQ (Single Correct Answer)Radioactivity and Nuclear Chemistry
MCQ (Single Correct Answer)Solid State
MCQ (Single Correct Answer)Surface Chemistry
MCQ (Single Correct Answer)Inorganic Chemistry
Periodic Table
MCQ (Single Correct Answer)Hydrogen and It's Compounds
MCQ (Single Correct Answer)d and f Block Elements
MCQ (Single Correct Answer)Organic Chemistry
IUPAC Nomenclatures
MCQ (Single Correct Answer)General Organic Chemistry
MCQ (Single Correct Answer)Polymers
MCQ (Single Correct Answer)Biomolecules
MCQ (Single Correct Answer)Practical Chemistry
MCQ (Single Correct Answer)Chemistry In Everyday Life
MCQ (Single Correct Answer)1
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Extraction of a metal (M) from its sulphide ore (M2S) involves the following chemical reactions
$$2{M_2}S + 3{O_2}\buildrel {Heat} \over \longrightarrow 2{M_2}O + 2S{O_2} \uparrow $$
$${M_2}S + 2{M_2}O\buildrel {Heat} \over \longrightarrow 6M + S{O_2} \uparrow $$
The metal (M) may be
$$2{M_2}S + 3{O_2}\buildrel {Heat} \over \longrightarrow 2{M_2}O + 2S{O_2} \uparrow $$
$${M_2}S + 2{M_2}O\buildrel {Heat} \over \longrightarrow 6M + S{O_2} \uparrow $$
The metal (M) may be
2
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.33
In the Bayer's process, the leaching of alumina is done by using
3
WB JEE 2019
MCQ (Single Correct Answer)
+2
-0.67
A copper coin was electroplated with Zn and then heated at high temperature until there is a change in colour. What will be the resulting colour?
4
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
The metal which can be used to obtain metallic Cu from aqueous CuSO4 solution is
Questions Asked from MCQ (Single Correct Answer)
WB JEE Subjects
Physics
Mechanics
Electricity
Chemistry
Physical Chemistry
Inorganic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry