Elementary and Complex Reactions

Q. The decomposition of ozone proceeds as $O_3\iff O_2+O\left(fast\right)O+O_3\to 2O_2\left(slow\right)$
The rate expression should be

1. $r=k\left[O_3{]}^2\right[O_2{]}^{-1}$
2. $r=k\left[O_3\right]\left[O_2\right]$
3. $r=k[O_3{]}^2$
4. $r=k\left[O_3\right][O_2{]}^{-1}$

Q. For the reaction $A+B\to C+D$, the variation of the concentration of the products is given by the curve:

1. x
2. y
3. w
4. z

Q.

Samwell is almost done!
Elementary reactions are classified based on?

1. Order
2. Molecularity
3. Rate constant
4. Phase of reactants

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> What do you observe when sugar crystals are mixed in water?

Q. ___ is the aggregate form of molecules in a colloidal solution.

1. Condensate
2. Micelle
3. Bikson
4. Precipitate

Q. In a reaction the rate of reaction is proportional to it active mass, this statement is known as:

1. Law of mass action
2. Le-chatelie principle
3. Faraday law of electrolysis
4. Law of constant proportion

Q. A hypothetical reaction :
$A_2+B_2\to 2AB$ follows the following mechanism :
$A_2\iff A+A\left(fast\right)$....K
$A+B_2\to AB+B\left(slow\right)$
$A+B\to AB\left(fast\right)$
The order of the overall reaction is

1. 2
2. 1
3. 0
4. $\frac{3}{2}$

Q. The time period of formation is the maximum for _______.

1. lignite
2. bituminous
3. anthracite
4. peat