MCQ
Nitrogen combines with metals to form
- ANitrites
- BNitrates
- CNitrosyl chloride
- ✓Nitrides
$3Mg + {N_2}\, \to \,M{g_3}{N_2}$ Magnesium nitride
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$A \to B$ ${k_1} = {10^{15}}{e^{ - 25000/8.34\,T}}$
$C \to D$ ${k_2} = {10^{14}}{e^{ - 15000/8.34\,T}}$
Calculate the approximate temperature at which $k_1 = k_2$ ...... $K$
Reason : Cerium salts are used as catalyst in petroleum cracking.
| Rate constant | Activation energy | |
| Step $1$ | $k_1$ | $E_{a1} = 180\ kJ/mol$ |
| Step $2$ | $k_2$ | $E_{a2} = 80\ kJ/mol$ |
| Step $3$ | $k_3$ | $E_{a3} = 50\ kJ/mol$ |
If overall rate constant, $k = {\left( {\frac{{{k_1}{k_2}}}{{{k_3}}}} \right)^{2/3}}$ ,then overall activation energy of the reaction will be .......... $ kJ/mol$
