HARD
JEE Main/Advance
IMPORTANT
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1 mole each of H2 (g) and I2 (g) are introduced in a 1 L evacuated vessel at 523 K and equilibrium H2 (g)+I2 (g)2HI (g) is established. The concentration of Hl (g) at equilibrium

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Important Questions on Equilibrium

MEDIUM
JEE Main/Advance
IMPORTANT
For the reaction: PCl5(g)PCl3(g)+Cl2(g)
The forward reaction at constant temperature is favoured by
HARD
JEE Main/Advance
IMPORTANT
Which of the following reaction will shift in forward direction. When the respective change is made at equilibrium :
HARD
JEE Main/Advance
IMPORTANT
2CaSO4(s)2CaO(s)+2SO2(g)+O2(g),    ΔH>0
Above equilibrium is established by taking some amount of CaSO4(s) in a closed container at 1600 K.Then which of the following may be correct option.
HARD
JEE Main/Advance
IMPORTANT

The dissociation of phosgene, which occurs according to the reaction

COCl2(g)CO(g)+Cl2(g)
Is an endothermic process. Which of the following will increase the degree of dissociation of COCl2?

HARD
JEE Main/Advance
IMPORTANT
The self-ionisation constant for pure formic acid, K=HCOOH2+[HCOO-] has been estimated as10-6 at room temperature. The density of formic acid is 1.15g/cm3. What percentage of formic acid molecules in pure fomic acid are converted to formate ion?
MEDIUM
JEE Main/Advance
IMPORTANT
pKa  for an acid HA is 6. The value of K for the reaction A-+H3O+HA+H2O is :
MEDIUM
JEE Main/Advance
IMPORTANT
10-6 M HCl is diluted to 100 times. Its pH is:
EASY
JEE Main/Advance
IMPORTANT
Which of the following solutions has a pH exactly equal to 8?