1
JEE Main 2020 (Online) 4th September Evening Slot
Numerical
+4
-0
Change Language
Consider the following equations :
2Fe2+ + H2O2 $$ \to $$ xA + yB
(in basic medium)
2MnO4- + 6H+ + 5H2O2 $$ \to $$ x'C + y'D + z'E
(in acidic medium)
The sum of the stoichiometric coefficients x, y, x', y', and z' for products A, B, C, D and E, respectively, is ______.
Your input ____
2
JEE Main 2020 (Online) 4th September Morning Slot
Numerical
+4
-0
Change Language
A 20.0 mL solution containing 0.2 g impure H2O2 reacts completely with 0.316 g of KMnO4 in acid solution. The purity of H2O2 (in %) is _____________
(mol. wt. of H2O2 = 34; mol. wt. of KMnO4 = 158)
Your input ____
3
JEE Main 2020 (Online) 4th September Morning Slot
Numerical
+4
-0
Change Language
The mass of ammonia in grams produced when 2.8 kg of dinitrogen quantitatively reacts with 1 kg of dihydrogen is _______.
Your input ____
4
JEE Main 2020 (Online) 3rd September Evening Slot
Numerical
+4
-0
Change Language
The volume (in mL) of 0.1 N NaOH required to neutralise 10 mL of 0.1 N phosphinic acid is ___________.
Your input ____
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12