Day 190: JEE Mains Chemistry

1. A.
   B, D only
2. B.
   B, C, D only
3. C.
   A, B, D only
4. D.
   B, C only

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1. A.
   ${Na}^{+} > K^{+} > {Rb}^{+} > {Cs}^{+}$
2. B.
   ${Cs}^{+} > {Rb}^{+} > K^{+} > {Na}^{+}$
3. C.
   $K^{+} > {Na}^{+} > {Cs}^{+} > {Rb}^{+}$
4. D.
   ${Rb}^{+} > {Na}^{+} > K^{+} > {Li}^{+}$

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1. A.
   helium will deactivate ${PCl}_{5}$ and reaction will stop.
2. B.
   the equilibrium will shift in the forward direction and more of ${Cl}_{2}$ and ${PCl}_{3}$ gases will be produced.
3. C.
   the equilibrium will go backward due to suppression of dissociation of ${PCl}_{5}$.
4. D.
   addition of helium will not affect the equilibrium.

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1. A.
   Both Statement I and Statement II are false
2. B.
   Statement I is false but Statement II is true
3. C.
   Both Statement I and Statement II are true
4. D.
   Statement I is true but Statement II is false

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