1
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Change Language
A KCl solution of conductivity 0.14 S m$$-$$1 shows a resistance of 4.19$$\Omega$$ in a conductivity cell. If the same cell is filled with an HCl solution, the resistance drops to 1.03$$\Omega$$. The conductivity of the HCl solution is ____________ $$\times$$ 10$$-$$2 S m$$-$$1. (Round off to the Nearest Integer).
Your input ____
2
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Change Language
On complete reaction of FeCl3 with oxalic acid in aqueous solution containing KOH, resulted in the formation of product A. The secondary valency of Fe in the product A is __________. (Round off to the Nearest Integer).
Your input ____
3
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Out of Syllabus
Change Language
The number of chlorine atoms in 20 mL of chlorine gas at STP is _________ 1021. (Round off to the Nearest Integer).

[Assume chlorine is an ideal gas at STP

R = 0.083 L bar mol$$-$$1 K$$-$$1, NA = 6.023 $$\times$$ 1023]
Your input ____
4
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Out of Syllabus
Change Language
KBr is doped with 10$$-$$5 mole percent of SrBr2. The number of cationic vacancies in 1g of KBr crystal is ____________ 1014. (Round off to the Nearest Integer).

[Atomic Mass : K : 39.1 u, Br : 79.9 u NA = 6.023 $$\times$$ 1023]
Your input ____
JEE Main Papers
2023
2021
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12