MCQ
Heating of ammonium dichromate produces
- A$NH_3 ,Cr_2O_3$ and $H_2O$
- ✓$N_2 ,Cr_2O_3$ and $H_2O$
- C$NO, CrO_3$ and $H_2O$
- D$Na_2O, CrO_3$ and $H_2O$
$\left( NH _4\right)_2 Cr _2 O _7 \rightarrow N _2+ Cr _2 O _3+4 H _2 O$
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Reason : $sp$ hybridised carbon atoms of acetylene are considerably electronegative.
$\mathrm{A}(\mathrm{g}) \rightarrow 2 \mathrm{~B}(\mathrm{~g})+\mathrm{C}(\mathrm{g})$
If the total pressure of the gases is found to be $200$ torr after $23 \mathrm{sec}$. and $300$ torr upon the complete decomposition of $\mathrm{A}$ after a very long time, then the rate constant of the given reaction is . . . . . .$\times 10^{-2} \mathrm{~s}^{-1}$ (nearest integer)
[Given : $\log _{10}(2)=0.301$ ]