Hydrocarbons · JEE Main previous year questions

2016 2 questions

1. Q652016 · 3 Apr 2016 · Shift 1

   At $300\mathrm{K}$ and $1\mathrm{atm}$, $15\mathrm{mL}$ of a gaseous hydrocarbon requires $375\mathrm{mL}$ air containing $20\%$ ${\mathrm{O}}_2$ by volume for complete combustion. After combustion the gases occupy $345\mathrm{mL}$. Assuming that the water formed is in liquid form and the volumes were measured at the same temperature and pressure, the formula of the hydrocarbon is:

   1. A.${\mathrm{C}}_3{\mathrm{H}}_8$
   2. B.${\mathrm{C}}_4{\mathrm{H}}_8$
   3. C.${\mathrm{C}}_4{\mathrm{H}}_{10}$
   4. D.${\mathrm{C}}_3{\mathrm{H}}_6$
   Show answer

   Answer: A

2. Q662016 · 3 Apr 2016 · Shift 1
   
   1. A.
   2. B.
   3. C.
   4. D.
   Show answer

   Answer: D