1
JEE Main 2020 (Online) 3rd September Morning Slot
Numerical
+4
-0
Change Language
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) 2nd September Evening Slot
Numerical
+4
-0
Change Language
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 ____
3
JEE Main 2020 (Online) 9th January Evening Slot
Numerical
+4
-0
Change Language
10.30 mg of O2 is dissolved into a liter of sea water of density 1.03 g/mL. The concentration of O2 in ppm is__________.
Your input ____
4
JEE Main 2020 (Online) 9th January Morning Slot
Numerical
+4
-0
Change Language
The molarity of HNO3 in a sample which has density 1.4 g/mL and mass percentage of 63% is _____.
(Molecular Weight of HNO3 = 63)
Your input ____
JEE Main Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12