Combustion of Aromatics

Q. Complete combustion of benzene produces:

1. $C_2{H}_2+H_{2}O$
2. $C{O}_2+H_{2}O$
3. $C_2{H}_{5}OH$
4. $C{H}_4+H_2$

Q. $45.4$ L of dinitrogen reacted with $22.7$ L of dioxygen and $45.4$ L of nitrous oxide was formed. The reaction is given below:
$2N_2\left(g\right)+O_2\left(g\right)\to 2N_{2}O\left(g\right)$
Which law is being obeyed in this experiment?

1. None
2. Gay Lussac's law of gaseous volumes
3. Henry's Law
4. Raoult's Law

Q.

Statement-1: Oxyhydrogen flame produces higher temperature then oxy atomic hydrogen flame.
Statement-2: The heat generated during burning of these gases in oxygen is used to melt substances.

1. Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
2. Statement-1 is True, Statement-2 is True; Statement-2 is not a correct explanation for Statement-1
3. Statement-1 is true, Statement-2 is false
4. Statement-1 is false, Statement-2 is true

Q. Henry's law constant for the molality of methane in benzene at $298K$ is $4.27\times 105mmHg$. Calculate the solubility of methane in benzene at $298K$ under $760mmHg$.

Q. When a certain amount of ethylene was burnt, 622 kJ heat was evolved. If heat of combustion of ethylene is 1411 kJ, the volume of $O_2$ that entered into the reaction is:

1. $29.62$ L
2. $6226$ $\times$ $22.4$ L
3. $296.5$ mL
4. $22.4$ mL

Q. Few reactions of alkanes are given below. The name of the reaction which is not correctly matched with the reaction is:

1. $C{H}_{3}C{H}_{2}C{H}_{2}C{H}_3\stackrel{AlC{l}_3+HCl}{\to }C{H}_3-\stackrel{C{H}_3}{\stackrel{|}{C}H}-C{H}_3:Isomerisation$
2. $C{H}_4+2O_2\underset{}{\overset{\Delta }{\to }}C{O}_2+2H_{2}O:Controlledoxidation$
3. $C_6{H}_{14}\stackrel{773K}{\to }{C}_4{H}_8+C_2{H}_6:Pyrolysis$
4. $C{H}_4+HN{O}_3\underset{}{\overset{{400}^{O}C}{\to }}C{H}_{3}N{O}_2:Nitration$

Q. The products of combustion of an aliphatic thiol (RSH) at $298K$ are

1. $C{O}_2\left(g\right),H_{2}O\left(g\right),andS{O}_2\left(g\right)$
2. $C{O}_2\left(g\right),H_{2}O\left(l\right),andS{O}_2\left(g\right)$
3. $C{O}_2\left(g\right),H_{2}O\left(l\right),andS{O}_2\left(l\right)$
4. $C{O}_2\left(l\right),H_{2}O\left(l\right),andS{O}_2\left(g\right)$

Q. The final product of complete oxidation of hydrocarbons is

1. Acid
2. Aldehyde
3. $H_{2}O+C{O}_2$
4. Dihydric alcohol

Q.

1. hydrolysis of aqueous solution of ${\left(N{H}_4\right)}_{2}S{O}_4+H_{2}S{O}_4$
2. auto oxidation
3. electrolysis of $50\%N{a}_2{O}_2$
4. treating $N{a}_2{O}_2$ with cold dil. $N{a}_2{O}_2$

Q. What product(s) are expected from the complete combustion of octane $\left(C_8{H}_{18}\right)$?

1. ${CO}_2$ and $H_{2}O$
2. ${CO}_2,H_{2}O$ and ${NO}_2$
3. ${CO}_2,{SO}_2$ and $H_{2}O$
4. $H_{2}O,CO$ and ${CO}_2$

Q. The volume of oxygen required for complete oxidation of 2 litre of methane at NTP is:

1. $12.25L$
2. $1L$
3. $4L$
4. $3L$

Q. The final product of complete oxidation of hydrocarbons is

1. $H_{2}O+C{O}_2$
2. Acid
3. Aldehyde
4. Dihydric alcohol

Q. Complete combustion of benzene produces:

1. $C_2{H}_{5}OH$
2. $C{H}_4+H_2$
3. $C_2{H}_2+H_{2}O$
4. $C{O}_2+H_{2}O$

Q. Which of the following reactions of methane is incomplete combustion?

1. $2C{H}_4+O_2\underset{}{\overset{Cu/523K/100atm}{\to }}2C{H}_{3}OH$
2. $C{H}_4+O_2\underset{}{\overset{M{o}_2{O}_3}{\to }}HCHO+H_{2}O$
3. $C{H}_4+2O_2\to C{O}_2\left(g\right)+2H_2{O}_{\left(l\right)}$
4. $C{H}_4+O_2\to C_{\left(s\right)}+2H_{2}O\left(l\right)$