When $5 \ L$ of a gas mixture of methane and propane is perfectly combusted at $0 \ ^\circ C$ and $1 \ atm$,$16 \ L$ of oxygen at the same temperature and pressure is consumed. The amount of heat released from this combustion in $kJ$ ($\Delta H_{comb.} (CH_4) = 890 \ kJ \ mol^{-1},$ $\Delta H_{comb.} (C_3H_8) = 2220 \ kJ \ mol^{-1}$) is
- A$38$
- B$317$
- C$477$
- D$32$
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If $0.5 \ g$ of a mixture of two metals $A$ and $B$ with respective equivalent weights $12$ and $9$ displace $560 \ mL$ of $H_2$ at $STP$ from an acid,the composition of the mixture is:
Difficult
View SolutionAt $NTP$,the density of a gas,whose molecular weight is $45$,is ............. $g \ L^{-1}$.
Medium
View SolutionUpon mixing equal volumes of aqueous solutions of $0.1 \, M \, HCl$ and $0.2 \, M \, H_2SO_4$,the concentration of $H^{+}$ in the resulting solution is $.... \, mol / L$.
MediumKVPY 2012
View SolutionMatch the following items in List-$I$ with the corresponding results in List-$II$ (at $STP$):
List-$I$ List-$II$ (At $STP$) $(A)$ $10 \ g \ CaCO_3 \xrightarrow{\Delta} \text{decomposition}$ $(i)$ $0.224 \ L \ CO_2$ $(B)$ $1.06 \ g \ Na_2CO_3 \xrightarrow{\text{Excess } HCl} \text{reaction}$ $(ii)$ $4.48 \ L \ CO_2$ $(C)$ $2.4 \ g \ C \xrightarrow{\text{Excess } O_2} \text{combustion}$ $(iii)$ $0.448 \ L \ CO_2$ $(D)$ $0.56 \ g \ CO \xrightarrow{\text{Excess } O_2} \text{combustion}$ $(iv)$ $2.24 \ L \ CO_2$ $(v)$ $22.4 \ L \ CO_2$
| List-$I$ | List-$II$ (At $STP$) |
| $(A)$ $10 \ g \ CaCO_3 \xrightarrow{\Delta} \text{decomposition}$ | $(i)$ $0.224 \ L \ CO_2$ |
| $(B)$ $1.06 \ g \ Na_2CO_3 \xrightarrow{\text{Excess } HCl} \text{reaction}$ | $(ii)$ $4.48 \ L \ CO_2$ |
| $(C)$ $2.4 \ g \ C \xrightarrow{\text{Excess } O_2} \text{combustion}$ | $(iii)$ $0.448 \ L \ CO_2$ |
| $(D)$ $0.56 \ g \ CO \xrightarrow{\text{Excess } O_2} \text{combustion}$ | $(iv)$ $2.24 \ L \ CO_2$ |
| $(v)$ $22.4 \ L \ CO_2$ |
DifficultAP EAMCET 2008
View SolutionThe chloride of a metal is $MCl_2$. The formula of its phosphate will be:
Easy
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