1

JEE Main 2021 (Online) 26th August Morning Shift

Numerical

+4

-1

The OH

[Given K

^{$$-$$}concentration in a mixture of 5.0 mL of 0.0504 M NH_{4}Cl and 2 mL of 0.0210 M NH_{3}solution is x $$\times$$ 10^{$$-$$6}M. The value of x is ___________. (Nearest integer)[Given K

_{w}= 1 $$\times$$ 10^{$$-$$14}and K_{b}= 1.8 $$\times$$ 10^{$$-$$5}]Your input ____

2

JEE Main 2021 (Online) 27th July Evening Shift

Numerical

+4

-1

The equilibrium constant for the reaction

A(s) $$\rightleftharpoons$$ M(s) + $${1 \over 2}$$O

is K

A(s) $$\rightleftharpoons$$ M(s) + $${1 \over 2}$$O

_{2}(g)is K

_{p}= 4. At equilibrium, the partial pressure of O_{2}is _________ atm. (Round off to the nearest integer)Your input ____

3

JEE Main 2021 (Online) 27th July Morning Shift

Numerical

+4

-1

PCl

K

3.0 moles of PCl

_{5}$$\rightleftharpoons$$ PCl_{3}+ Cl_{2}K

_{c}= 1.8443.0 moles of PCl

_{5}is introduced in a 1 L closed reaction vessel at 380 K. The number of moles of PCl_{5}at equilibrium is ______________ $$\times$$ 10^{$$-$$3}. (Round off to the Nearest Integer)Your input ____

4

JEE Main 2021 (Online) 25th July Evening Shift

Numerical

+4

-1

Assuming that Ba(OH)

_{2}is completely ionised in aqueous solution under the given conditions the concentration of H_{3}O^{+}ions in 0.005 M aqueous solution of Ba(OH)^{2}at 298 K is ______________ $$\times$$ 10^{$$-$$12}mol L^{$$-$$1}. (Nearest integer)Your input ____

Questions Asked from Chemical Equilibrium (Numerical)

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