1
JEE Main 2020 (Online) 5th September Morning Slot
Numerical
+4
-0
The minimum number of moles of O2
required for complete combustion of 1 mole of propane and 2
moles of butane is _____.
Your input ____
2
JEE Main 2020 (Online) 4th September Evening Slot
Numerical
+4
-0
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 ______.
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 ____
3
JEE Main 2020 (Online) 4th September Morning Slot
Numerical
+4
-0
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) 4th September Morning Slot
Numerical
+4
-0
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)
(mol. wt. of H2O2 = 34; mol. wt. of KMnO4 = 158)
Your input ____
Questions Asked from Some Basic Concepts of Chemistry (Numerical)
Number in Brackets after Paper Indicates
No. of Questions
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