Chemistry Test ...

Ammonium carbamate dissociates as

\(\mathrm{NH}_{2} \mathrm{COONH}_{4}(s) 2 \mathrm{NH}_{3}(\mathrm{g})+\mathrm{CO}_{2}(\mathrm{g})\)

In a closed vessel containing ammonium carbamate in equilibrium, ammonia is added such that partial pressure of NH₃ now equals to the original total pressure. Calculate the ratio of partial pressure of CO₂ now to the original partial pressure of CO₂ :

The number of electrons lost in the following change is :

Fe+H₂O⟶Fe₃O₄+H₂

In the reaction C(s)+CO₂⇌2CO(g), the equilibrium pressure is 12 atm. If 50% CO₂ reacts, calculate K_P.

Addition of HI on double bond of propene yields isopropyl iodide and not n-propyl iodide, because addition proceeds through :

In an alkaline medium, KMnO₄ reacts as follows (At wt. of K=39.09, Mn=54.94, O=16.0): 2KMnO4+2KOH→2K2MnO4+H2O+[O]

i) The equivalent weight of KMnO₄ in alkaline medium is 158.

ii) The number of electrons gained by one molecule of KMnO₄ in the alkaline medium is 1.

iii) In the alkaline medium, KMnO₄ acts as reducing agent.

Select correct option.

How many d-orbital(s) is/are involved in hybridization of [AuCl₄]⁻ ?

In which of the following, the highest oxidation state is not possible?

How many maximum atom(s) is/are present in same plane of Cr(CO)₆ ?

Which of the following is used as freezing mixture?

In the formation of a chloride ion from an isolated gaseous chlorine atom, 3.8 eV energy is released, which would be equal to: