MCQ
The oxide which is not reduced by hydrogen is
- A$A{g_2}O$
- ✓${K_2}O$
- C$F{e_2}{O_3}$
- D${P_4}{O_{10}}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

(use $R =0.083 L\,bar\,mol ^{-1}\, K ^{-1}$ )
Half-life does not depend on the concentration of the reactant. After $10 \,\min,$ volume of $N_2$ gas is $20\, L$ and after the completion of reaction, it is $100\, L$. Hence, rate constant is :- 