230456
Which of the following alkenes will not give an optically active alcohol when treated with $\mathrm{H}_2 \mathrm{O}_2 / \mathrm{H}_2 \mathrm{SO}_4$ ?
1 Butene-1
2 Ethene
3 Propene
4 2-Methylpropene
Explanation:
:
J and K CET-(1997)
Hydrocarbons
230457
The preparation of ethene from ethanol can be described as
1 addition
2 dehydration
3 hydrogenation
4 oxidation
Explanation:
: Ethene is prepared by the dehydration of ethyl alcohol in the presence of conc $\mathrm{H}_2 \mathrm{SO}_4$ at $160^{\circ} \mathrm{C}$.
J and K CET-(1999)
Hydrocarbons
230458
For the industrial manufacture of high density polyethylene, identify the process that is generally adopted out of the following.
1 free-radical liquid phase polymerisation
2 free-radical gas phase polymerisation
3 Zeigler-Natta or oxide catalysed polymerisation
4 anionic polymerization
Explanation:
: High density polyethylene is manufacture of low pressure (1.0-80 atm) in the presence of a Ziegler - Natta or oxide catalysed polymerization Typical temperature range between $350-420 \mathrm{~K}$. Hydrogen is mixed with the ethane to control the chain length of polymer.
J and K CET-(2001)
Hydrocarbons
230459
Acid catalysed hydration of allenes except ethene leads to the formation of
1 mixture of secondary and tertiary alcohols
2 mixture of primary and secondary alcohols
3 secondary or tertiary alcohol
4 primary alcohol
Explanation:
: Acid catalysed hydration of alkenes except ethane leads to the formation secondery and tertiary alcohols. The alkene involves replacing the $\pi$-bond on an alkene with a water molecule. This is done by adding of an alcohol to the more substituted carbon atom and hydrogen to the less substituted carbon atom. This reaction follow Markovinkov's rule and may undergo a carbocation rearrangement.
230456
Which of the following alkenes will not give an optically active alcohol when treated with $\mathrm{H}_2 \mathrm{O}_2 / \mathrm{H}_2 \mathrm{SO}_4$ ?
1 Butene-1
2 Ethene
3 Propene
4 2-Methylpropene
Explanation:
:
J and K CET-(1997)
Hydrocarbons
230457
The preparation of ethene from ethanol can be described as
1 addition
2 dehydration
3 hydrogenation
4 oxidation
Explanation:
: Ethene is prepared by the dehydration of ethyl alcohol in the presence of conc $\mathrm{H}_2 \mathrm{SO}_4$ at $160^{\circ} \mathrm{C}$.
J and K CET-(1999)
Hydrocarbons
230458
For the industrial manufacture of high density polyethylene, identify the process that is generally adopted out of the following.
1 free-radical liquid phase polymerisation
2 free-radical gas phase polymerisation
3 Zeigler-Natta or oxide catalysed polymerisation
4 anionic polymerization
Explanation:
: High density polyethylene is manufacture of low pressure (1.0-80 atm) in the presence of a Ziegler - Natta or oxide catalysed polymerization Typical temperature range between $350-420 \mathrm{~K}$. Hydrogen is mixed with the ethane to control the chain length of polymer.
J and K CET-(2001)
Hydrocarbons
230459
Acid catalysed hydration of allenes except ethene leads to the formation of
1 mixture of secondary and tertiary alcohols
2 mixture of primary and secondary alcohols
3 secondary or tertiary alcohol
4 primary alcohol
Explanation:
: Acid catalysed hydration of alkenes except ethane leads to the formation secondery and tertiary alcohols. The alkene involves replacing the $\pi$-bond on an alkene with a water molecule. This is done by adding of an alcohol to the more substituted carbon atom and hydrogen to the less substituted carbon atom. This reaction follow Markovinkov's rule and may undergo a carbocation rearrangement.
230456
Which of the following alkenes will not give an optically active alcohol when treated with $\mathrm{H}_2 \mathrm{O}_2 / \mathrm{H}_2 \mathrm{SO}_4$ ?
1 Butene-1
2 Ethene
3 Propene
4 2-Methylpropene
Explanation:
:
J and K CET-(1997)
Hydrocarbons
230457
The preparation of ethene from ethanol can be described as
1 addition
2 dehydration
3 hydrogenation
4 oxidation
Explanation:
: Ethene is prepared by the dehydration of ethyl alcohol in the presence of conc $\mathrm{H}_2 \mathrm{SO}_4$ at $160^{\circ} \mathrm{C}$.
J and K CET-(1999)
Hydrocarbons
230458
For the industrial manufacture of high density polyethylene, identify the process that is generally adopted out of the following.
1 free-radical liquid phase polymerisation
2 free-radical gas phase polymerisation
3 Zeigler-Natta or oxide catalysed polymerisation
4 anionic polymerization
Explanation:
: High density polyethylene is manufacture of low pressure (1.0-80 atm) in the presence of a Ziegler - Natta or oxide catalysed polymerization Typical temperature range between $350-420 \mathrm{~K}$. Hydrogen is mixed with the ethane to control the chain length of polymer.
J and K CET-(2001)
Hydrocarbons
230459
Acid catalysed hydration of allenes except ethene leads to the formation of
1 mixture of secondary and tertiary alcohols
2 mixture of primary and secondary alcohols
3 secondary or tertiary alcohol
4 primary alcohol
Explanation:
: Acid catalysed hydration of alkenes except ethane leads to the formation secondery and tertiary alcohols. The alkene involves replacing the $\pi$-bond on an alkene with a water molecule. This is done by adding of an alcohol to the more substituted carbon atom and hydrogen to the less substituted carbon atom. This reaction follow Markovinkov's rule and may undergo a carbocation rearrangement.
230456
Which of the following alkenes will not give an optically active alcohol when treated with $\mathrm{H}_2 \mathrm{O}_2 / \mathrm{H}_2 \mathrm{SO}_4$ ?
1 Butene-1
2 Ethene
3 Propene
4 2-Methylpropene
Explanation:
:
J and K CET-(1997)
Hydrocarbons
230457
The preparation of ethene from ethanol can be described as
1 addition
2 dehydration
3 hydrogenation
4 oxidation
Explanation:
: Ethene is prepared by the dehydration of ethyl alcohol in the presence of conc $\mathrm{H}_2 \mathrm{SO}_4$ at $160^{\circ} \mathrm{C}$.
J and K CET-(1999)
Hydrocarbons
230458
For the industrial manufacture of high density polyethylene, identify the process that is generally adopted out of the following.
1 free-radical liquid phase polymerisation
2 free-radical gas phase polymerisation
3 Zeigler-Natta or oxide catalysed polymerisation
4 anionic polymerization
Explanation:
: High density polyethylene is manufacture of low pressure (1.0-80 atm) in the presence of a Ziegler - Natta or oxide catalysed polymerization Typical temperature range between $350-420 \mathrm{~K}$. Hydrogen is mixed with the ethane to control the chain length of polymer.
J and K CET-(2001)
Hydrocarbons
230459
Acid catalysed hydration of allenes except ethene leads to the formation of
1 mixture of secondary and tertiary alcohols
2 mixture of primary and secondary alcohols
3 secondary or tertiary alcohol
4 primary alcohol
Explanation:
: Acid catalysed hydration of alkenes except ethane leads to the formation secondery and tertiary alcohols. The alkene involves replacing the $\pi$-bond on an alkene with a water molecule. This is done by adding of an alcohol to the more substituted carbon atom and hydrogen to the less substituted carbon atom. This reaction follow Markovinkov's rule and may undergo a carbocation rearrangement.
