1
JEE Main 2021 (Online) 20th July Evening Shift
Numerical
+4
-1
When 0.15 g of an organic compound was analyzed using Carius method for estimation of bromine, 0.2397 g of AgBr was obtained. The percentage of bromine in the organic compound is ______________. (Nearest integer)
[Atomic mass : Silver = 108, Bromine = 80]
[Atomic mass : Silver = 108, Bromine = 80]
Your input ____
2
JEE Main 2021 (Online) 20th July Morning Shift
Numerical
+4
-1
250 mL of 0.5 M NaOH was added to 500 mL of 1 M HCl. The number of unreacted HCl molecules in the solution after complete reaction is ___________ $$\times$$ 1021. (Nearest integer)
(NA = 6.022 $$\times$$ 1023)
(NA = 6.022 $$\times$$ 1023)
Your input ____
3
JEE Main 2021 (Online) 20th July Morning Shift
Numerical
+4
-1
An average person needs about 10000 kJ energy per day. The amount of glucose (molar mass = 180.0 g mol$$-$$1) needed to meet this energy requirement is ____________ g.
(Use : $$\Delta$$CH(glucose) = $$-$$2700 kJ mol$$-$$1)
(Use : $$\Delta$$CH(glucose) = $$-$$2700 kJ mol$$-$$1)
Your input ____
4
JEE Main 2021 (Online) 18th March Evening Shift
Numerical
+4
-1
10.0 mL of Na2CO3 solution is titrated against 0.2 M HCl solution. The following titre values were obtained in 5 readings :
4.8 mL, 4.9 mL, 5.0 mL, 5.0 mL and 5.0 mL
Based on these readings, and convention of titrimetric estimation the concentration of Na2CO3 solution is ___________ mM.
(Round off to the Nearest Integer).
4.8 mL, 4.9 mL, 5.0 mL, 5.0 mL and 5.0 mL
Based on these readings, and convention of titrimetric estimation the concentration of Na2CO3 solution is ___________ mM.
(Round off to the Nearest Integer).
Your input ____
Questions Asked from Some Basic Concepts of Chemistry (Numerical)
Number in Brackets after Paper Indicates No. of Questions
JEE Main 2022 (Online) 29th July Evening Shift (1) JEE Main 2022 (Online) 28th July Evening Shift (1) JEE Main 2022 (Online) 28th July Morning Shift (2) JEE Main 2022 (Online) 27th July Morning Shift (1) JEE Main 2022 (Online) 26th July Evening Shift (2) JEE Main 2022 (Online) 26th July Morning Shift (2) JEE Main 2022 (Online) 25th July Evening Shift (2) JEE Main 2022 (Online) 28th June Evening Shift (1) JEE Main 2022 (Online) 28th June Morning Shift (2) JEE Main 2022 (Online) 27th June Evening Shift (1) JEE Main 2022 (Online) 27th June Morning Shift (1) JEE Main 2022 (Online) 26th June Evening Shift (2) JEE Main 2022 (Online) 25th June Evening Shift (1) JEE Main 2022 (Online) 25th June Morning Shift (3) JEE Main 2022 (Online) 24th June Evening Shift (1) JEE Main 2022 (Online) 24th June Morning Shift (1) JEE Main 2021 (Online) 1st September Evening Shift (2) JEE Main 2021 (Online) 31st August Evening Shift (1) JEE Main 2021 (Online) 31st August Morning Shift (1) JEE Main 2021 (Online) 27th August Evening Shift (1) JEE Main 2021 (Online) 27th August Morning Shift (2) JEE Main 2021 (Online) 26th August Evening Shift (3) JEE Main 2021 (Online) 26th August Morning Shift (1) JEE Main 2021 (Online) 27th July Evening Shift (1) JEE Main 2021 (Online) 27th July Morning Shift (2) JEE Main 2021 (Online) 25th July Evening Shift (2) JEE Main 2021 (Online) 25th July Morning Shift (2) JEE Main 2021 (Online) 22th July Evening Shift (2) JEE Main 2021 (Online) 20th July Evening Shift (2) JEE Main 2021 (Online) 20th July Morning Shift (2) JEE Main 2021 (Online) 18th March Evening Shift (1) JEE Main 2021 (Online) 18th March Morning Shift (3) JEE Main 2021 (Online) 17th March Evening Shift (1) JEE Main 2021 (Online) 17th March Morning Shift (3) JEE Main 2021 (Online) 16th March Evening Shift (1) JEE Main 2021 (Online) 16th March Morning Shift (2) JEE Main 2021 (Online) 26th February Evening Shift (1) JEE Main 2021 (Online) 26th February Morning Shift (1) JEE Main 2021 (Online) 25th February Morning Shift (1) JEE Main 2021 (Online) 24th February Evening Shift (1) JEE Main 2021 (Online) 24th February Morning Shift (1) JEE Main 2020 (Online) 6th September Morning Slot (1) JEE Main 2020 (Online) 5th September Morning Slot (1) JEE Main 2020 (Online) 4th September Evening Slot (1) JEE Main 2020 (Online) 4th September Morning Slot (2) JEE Main 2020 (Online) 3rd September Evening Slot (2) JEE Main 2020 (Online) 3rd September Morning Slot (2) JEE Main 2020 (Online) 2nd September Evening Slot (2) JEE Main 2020 (Online) 9th January Morning Slot (2) JEE Main 2020 (Online) 8th January Morning Slot (2) JEE Main 2020 (Online) 7th January Evening Slot (1)