1
JEE Advanced 2015 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

Fe3+ is reduced to Fe2+ by using

A
H2O2 in presence of NaOH.
B
Na2O2 in water.
C
H2O2 in presence of H2SO4.
D
Na2O2 in presence of H2SO4.
2
JEE Advanced 2014 Paper 1 Offline
MCQ (More than One Correct Answer)
+3
-0
For the reaction,

$${I^ - } + ClO_3^ - + {H_2}S{O_4} \to C{l^ - } + HSO_4^ - + {I_2}$$

the correct statement(s) in the balanced equation is/are
A
stoichiometric coefficient of HSO$$_4^ - $$ is 6
B
iodide is oxidised
C
sulphur is reduced
D
H2O is one of the products
3
IIT-JEE 2011 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2

Reduction of the metal centre in aqueous permanganate ion involves

A
3 electrons in neutral medium.
B
5 electrons in neutral medium.
C
3 electrons in alkaline medium.
D
5 electrons in acidic medium.
JEE Advanced Subjects