1
JEE Main 2021 (Online) 26th August Morning Shift
Numerical
+4
-1
Change Language
An aqueous KCl solution of density 1.20 g mL$$-$$1 has a molality of 3.30 mol kg$$-$$1. The molarity of the solution in mol L$$-$$1 is ____________ (Nearest integer) [Molar mass of KCl = 74.5]
Your input ____
2
JEE Main 2021 (Online) 27th July Evening Shift
Numerical
+4
-1
Change Language
2SO2(g) + O2(g) $$\to$$ 2SO3(g)

The above reaction is carried out in a vessel starting with partial pressure PSO2 = 250 m bar, PO2 = 750 m bar and PSO3 = 0 bar. When the reaction is complete, the total pressure in the reaction vessel is _______ m bar. (Round off of the nearest integer).
Your input ____
3
JEE Main 2021 (Online) 27th July Morning Shift
Numerical
+4
-1
Change Language
The density of NaOH solution is 1.2 g cm$$-$$3. The molality of this solution is _____________ m. (Round off to the Nearest Integer)

[Use : Atomic mass : Na : 23.0 u, O : 16.0 u, H : 1.0 u, Density of H2O : 1.0 g cm$$-$$3]
Your input ____
4
JEE Main 2021 (Online) 25th July Evening Shift
Numerical
+4
-1
Out of Syllabus
Change Language
The number of significant figures in 0.00340 is ____________.
Your input ____
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