The formation of phosgene is represented as,
CO + Cl2 COCl2
The reaction is carried out in 500 mL flask. At equilibrium o.3 mole of phosgene, 0.1 mole of CO and 0.1 mole of Cl2 are present. The equilibrium constant of the reaction is:
1. 30
2. 15
3. 5
4. 3
For the equilibrium, PCl5 PCl3 + Cl2,
, temperature remaining constant:
1. Kc will increase with the increase in volume
2. Kc will increase with the decrease in volume
3. Kc will not change with the change in volume
4. Kc may increase or decrease with the change in volume depending upon its numerical value.
For the reaction,
PCl5(g) PCl3(g) + Cl2 (g)
The forward reaction at constant temperature is favoured by:
1. Introducing an inert gas at a constant volume
2. Introducing chlorine gas at a constant volume
3. Introducing an inert gas at constant pressure
4. None of the above
In the dissociation of 2HI H2 + I2, the degree of dissociation will be influenced by the:
1. Addition of inert gas at constant volume
2. Addition of inert gas at constant pressure
3. Increase of temperature
4. Increase of pressure
The correct order of increasing [H3O+] in the following aqueous solutions is:
1. 0.01 M H2S < 0.01 M H2SO4<0.01 M NaCl<0.01M NaNO2
2. 0.01 M NaCl< 0.01 M NaNO2<0.01 M H2S< 0.01 M H2SO4
3. 0.01 M NaNO2<0.01 M NaCl<0.01 M H2S<0.01 M H2SO4
4. 0.01 M H2S<0.01 M NaNO2<0.01 M NaCl<0.01 M H2SO4
If the pressure of N2 and H2 mixture in a closed apparatus is 100 atm and 20% of the mixture then reacts, the pressure at the same temperature would be:
1. 100
2. 90
3. 85
4. 80
The following reactions are known to occur in the body,
CO2 + H2OH2CO3H+ + HCO3-
If CO2 escapes from the system, then:
1. pH will decrease
2. hydrogen ion concentration will diminish
3. H2CO3 concentration will be unaltered
4. the forward reaction will be promoted
Which salt undergoes hydrolysis?
1. CH3COONa
2. KNO3
3. NaCl
4. K2SO4
Buffer solution among the following options is :
1. HNO2 and NaNO2
2. NaOH and NaCl
3. HNO3 and NH4NO3
4. HCl and KCl
According to Le-Chatelier's principle, adding heat to a solid liquid equilibrium will cause the :
1. Temperature to increase
2. Temperature to decrease
3. Amount of liquid to decrease
4. Amount of solid to decrease