1 |
Which gas is used to prepare ammonia? |
N<sub>2</sub>
O<sub>2</sub>
Cl<sub>2</sub>
S
|
2 |
The % age of nitrogen and oxygen in our atmosphere is: |
80
90
95
99
|
3 |
Guldberg and waage put forward law of mass action in: |
1860
1869
1870
1879
|
4 |
When the reaction causes to produced it is called. |
Chemical equlibrium state
Static equilibrium
Dynamic equilibriiun
All
|
5 |
When the rate of a the forward reaction takes place at the rate of reverse reaction the composition of the reaction mixture remains constant it is called. |
Chemical equilibrium
Dynamic equilibrium
Static equilibrium
All
|
6 |
The color of hydrogen Iodide is: |
Colourless
Black
Red
Pink
|
7 |
The color of Iodine is: |
Purple
Black
Red
Pink
|
8 |
The reaction in which the products can recombine to form reactants are called. |
Reversible reaction
Irreversible reaction
Decomposition
Addition
|
9 |
The reaction in which the products do not recombine to form reactants are called. |
Inversible reactions
Reversible reaction
Decomposition
Addition
|
10 |
In irreversible reaction, dynamic equilibrium: |
Never establishes
Establishes before the completion of reaction
Establishes after the completion of reaction
Establishes readily
|
11 |
The value of equilibrium constant (Kc) depends only on: |
temperature
Pressure
concentration
density
|
12 |
When the number of moles of both sides are equal in a reaction then the unit of Kc will be: |
no unit
mol-2 dm6
mol dm3
mo-2 dn
|