1
JEE Main 2020 (Online) 3rd September Morning Slot
Numerical
+4
-0
The mole fraction of glucose (C6H12O6
) in an aqueous binary solution is 0.1. The mass percentage of
water in it, to the nearest integer, is _______.
Your input ____
2
JEE Main 2020 (Online) 3rd September Morning Slot
Numerical
+4
-0
The volume strength of 8.9 M H2O2
solution calculated at 273 K and 1 atm is ______. (R = 0.0821 L
atm K-1 mol-1) (rounded off ot the nearest integer)
Your input ____
3
JEE Main 2020 (Online) 2nd September Evening Slot
Numerical
+4
-0
The oxidation states of transition metal atoms
in K2Cr2O7, KMnO4 and K2FeO4, respectively,
are x, y and z. The sum of x, y and z is _______.
Your input ____
4
JEE Main 2020 (Online) 2nd September Evening Slot
Numerical
+4
-0
The ratio of the mass percentages of ‘C & H’
and ‘C & O’ of a saturated acyclic organic
compound ‘X’ are 4 : 1 and 3 : 4 respectively.
Then, the moles of oxygen gas required for
complete combustion of two moles of organic
compound ‘X’ is ________.
Your input ____
Questions Asked from Some Basic Concepts of Chemistry (Numerical)
Number in Brackets after Paper Indicates
No. of Questions
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