Oxidation of Alkanes

Q. Identify the product 'P' in the given oxidation reaction:
$(C{H}_3{)}_{3}CH+[O]\stackrel{KMn{O}_4}{⟶}P$

1. $(C{H}_3{)}_{3}COH$
2. $H_{2}O$ and $C{O}_2$
3. $C{H}_{3}C{H}_{2}C{H}_{2}CHO$
4. $C{H}_{3}C{H}_{2}C{H}_{2}C{H}_{2}OH$

Q. The possible product formed on pyrolysis of n-hexane is/are:

1. $C{H}_4,C_3{H}_6,C_2{H}_4$
2. $C_6{H}_{12},H_2$
3. $C_4{H}_8,C_2{H}_6$
4. All of the above.

Q. Controlled oxidation of ethane in the presence of manganese acetate produces :

1. Ethanoic acid
2. Ethene
3. Ethanoate
4. Methane

Q. Find the product 'X' in the given reaction :
$C{H}_4+H_{2}O\underset{△\left(1273K\right)}{\overset{Ni}{\to }}X+3H_2$

1. $CO$
2. $C{H}_{3}OH$
3. $C{H}_{3}CHO$
4. $HCHO$

Q. Find the product 'X' in the given reaction :
$C{H}_4+H_{2}O\underset{△\left(1273K\right)}{\overset{Ni}{\to }}X+3H_2$

1. $CO$
2. $C{H}_{3}OH$
3. $C{H}_{3}CHO$
4. $HCHO$

Q. At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% $O_2$ by volume for complete combustion. After combustion the gases occupy 330 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. $C_3{H}_8$
2. $C_4{H}_8$
3. $C_4{H}_{10}$
4. $C_3{H}_6$

Q. Controlled oxidation of ethane in the presence of manganese acetate produces :

1. Ethanoic acid
2. Ethene
3. Ethanoate
4. Methane

Q.

Choose the correct word/phrase from within the brackets to complete the sentence.
When acetaldehyde is oxidised with acidified potassium dichromate, it forms

1. ester

2. ethanol

3. acetic acid

Q. Find out the product 'P' :
$2C{H}_4+O_2\underset{100atm}{\overset{Cu/523K}{\to }}P$

1. $HCHO$
2. $C{H}_{3}OH$
3. $H_{2}O$
4. $C{H}_{3}CHO$

Q. For the given reactions , the name of the reaction which isn't correctly matched is :

1. $\text{n-butane}\underset{\Delta }{\overset{AlC{l}_3+HCl}{\to }}\text{2-methyl propane}:\text{Isomerisation}$
2. $C_6{H}_{14}\stackrel{773K}{⟶}{C}_4{H}_8+C_2{H}_6:\text{Pyrolysis}$
3. $C{H}_4+2O_2\stackrel{\Delta }{⟶}C{O}_2+2H_{2}O:\text{Controlled oxidation}$
4. $\left(C{H}_3{)}_{3}CH\stackrel{Kmn{O}_4}{\to }\right(C{H}_3{)}_{3}C-OH:\text{Controlled oxidation}$

Q. At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% $O_2$ by volume for complete combustion. After combustion the gases occupy 330 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. $C_3{H}_8$
2. $C_4{H}_8$
3. $C_4{H}_{10}$
4. $C_3{H}_6$

Q.

Which of the following is oxidised by $KMn{O}_4$

1. Methane

2. pentane

3. Isobutane

4. Neopentane