230096
Which one of the following is the most energetic conformation of cyclohexane?
1 Boat
2 Twisted boat
3 Chair
4 Half chair
Explanation:
: Half chair is the most energetic and is the most stained and ustable conformation of cyclohexane.
COMEDK 2016
Hydrocarbons
230097
Methane can be converted to ethane by the reaction,
1 Chlorination followed by the reaction with alcoholic $\mathrm{KOH}$
2 Chlorination followed by the reaction with aqueous $\mathrm{KOH}$
3 Chlorination followed by Wurtz reaction
4 Chlorination followed by decarboxylation.
Explanation:
: Methane can be converted to ethane by the Wurtz reaction,
COMEDK 2018
Hydrocarbons
230268
Iodoform gives a precipitate with $\mathrm{AgNO}_3$ on heating but chloroform dose not because
1 $\mathrm{C}-\mathrm{I}$ bond in iodoform is weak and $\mathrm{C}-\mathrm{Cl}$ bond in chloroform is strong
2 Choroform is covalent
3 iodoform is ionic
4 None of the above
Explanation:
: $\mathrm{On}$ heating $\mathrm{C}-\mathrm{I}$ bond in $\mathrm{CHI}_3$ break, but $\mathrm{C}$ - $\mathrm{Cl}$ bond in $\mathrm{CHCl}_3$ does not break. Thus, $\mathrm{AgNO}_3$ gives precipitate AgI with iodoform.
UP CPMT-2008
Hydrocarbons
230099
Which among the following is most strained cycloalkane?
1 Cyclohexane
2 Cyclobutane
3 Cyclopropane
4 Cyclopentane
Explanation:
: Cyclopropane has the highest angle strain among the cyclobutane, cyclopentane and cyclohexane.
COMEDK 2020
Hydrocarbons
230100
Which one of the following reagents is used for detection of unsaturation in alkenes?
: Both bromine water or alkaline $\mathrm{KMnO}_4$ (Baeyer's reagent) are decolourised after the reaction with unsaturated compound. Unsaturation in alkyne or alkene in any organic compound is defected by reagents the organic compound with alkaline $\mathrm{KMnO}_4$ or bromine water.
230096
Which one of the following is the most energetic conformation of cyclohexane?
1 Boat
2 Twisted boat
3 Chair
4 Half chair
Explanation:
: Half chair is the most energetic and is the most stained and ustable conformation of cyclohexane.
COMEDK 2016
Hydrocarbons
230097
Methane can be converted to ethane by the reaction,
1 Chlorination followed by the reaction with alcoholic $\mathrm{KOH}$
2 Chlorination followed by the reaction with aqueous $\mathrm{KOH}$
3 Chlorination followed by Wurtz reaction
4 Chlorination followed by decarboxylation.
Explanation:
: Methane can be converted to ethane by the Wurtz reaction,
COMEDK 2018
Hydrocarbons
230268
Iodoform gives a precipitate with $\mathrm{AgNO}_3$ on heating but chloroform dose not because
1 $\mathrm{C}-\mathrm{I}$ bond in iodoform is weak and $\mathrm{C}-\mathrm{Cl}$ bond in chloroform is strong
2 Choroform is covalent
3 iodoform is ionic
4 None of the above
Explanation:
: $\mathrm{On}$ heating $\mathrm{C}-\mathrm{I}$ bond in $\mathrm{CHI}_3$ break, but $\mathrm{C}$ - $\mathrm{Cl}$ bond in $\mathrm{CHCl}_3$ does not break. Thus, $\mathrm{AgNO}_3$ gives precipitate AgI with iodoform.
UP CPMT-2008
Hydrocarbons
230099
Which among the following is most strained cycloalkane?
1 Cyclohexane
2 Cyclobutane
3 Cyclopropane
4 Cyclopentane
Explanation:
: Cyclopropane has the highest angle strain among the cyclobutane, cyclopentane and cyclohexane.
COMEDK 2020
Hydrocarbons
230100
Which one of the following reagents is used for detection of unsaturation in alkenes?
: Both bromine water or alkaline $\mathrm{KMnO}_4$ (Baeyer's reagent) are decolourised after the reaction with unsaturated compound. Unsaturation in alkyne or alkene in any organic compound is defected by reagents the organic compound with alkaline $\mathrm{KMnO}_4$ or bromine water.
230096
Which one of the following is the most energetic conformation of cyclohexane?
1 Boat
2 Twisted boat
3 Chair
4 Half chair
Explanation:
: Half chair is the most energetic and is the most stained and ustable conformation of cyclohexane.
COMEDK 2016
Hydrocarbons
230097
Methane can be converted to ethane by the reaction,
1 Chlorination followed by the reaction with alcoholic $\mathrm{KOH}$
2 Chlorination followed by the reaction with aqueous $\mathrm{KOH}$
3 Chlorination followed by Wurtz reaction
4 Chlorination followed by decarboxylation.
Explanation:
: Methane can be converted to ethane by the Wurtz reaction,
COMEDK 2018
Hydrocarbons
230268
Iodoform gives a precipitate with $\mathrm{AgNO}_3$ on heating but chloroform dose not because
1 $\mathrm{C}-\mathrm{I}$ bond in iodoform is weak and $\mathrm{C}-\mathrm{Cl}$ bond in chloroform is strong
2 Choroform is covalent
3 iodoform is ionic
4 None of the above
Explanation:
: $\mathrm{On}$ heating $\mathrm{C}-\mathrm{I}$ bond in $\mathrm{CHI}_3$ break, but $\mathrm{C}$ - $\mathrm{Cl}$ bond in $\mathrm{CHCl}_3$ does not break. Thus, $\mathrm{AgNO}_3$ gives precipitate AgI with iodoform.
UP CPMT-2008
Hydrocarbons
230099
Which among the following is most strained cycloalkane?
1 Cyclohexane
2 Cyclobutane
3 Cyclopropane
4 Cyclopentane
Explanation:
: Cyclopropane has the highest angle strain among the cyclobutane, cyclopentane and cyclohexane.
COMEDK 2020
Hydrocarbons
230100
Which one of the following reagents is used for detection of unsaturation in alkenes?
: Both bromine water or alkaline $\mathrm{KMnO}_4$ (Baeyer's reagent) are decolourised after the reaction with unsaturated compound. Unsaturation in alkyne or alkene in any organic compound is defected by reagents the organic compound with alkaline $\mathrm{KMnO}_4$ or bromine water.
230096
Which one of the following is the most energetic conformation of cyclohexane?
1 Boat
2 Twisted boat
3 Chair
4 Half chair
Explanation:
: Half chair is the most energetic and is the most stained and ustable conformation of cyclohexane.
COMEDK 2016
Hydrocarbons
230097
Methane can be converted to ethane by the reaction,
1 Chlorination followed by the reaction with alcoholic $\mathrm{KOH}$
2 Chlorination followed by the reaction with aqueous $\mathrm{KOH}$
3 Chlorination followed by Wurtz reaction
4 Chlorination followed by decarboxylation.
Explanation:
: Methane can be converted to ethane by the Wurtz reaction,
COMEDK 2018
Hydrocarbons
230268
Iodoform gives a precipitate with $\mathrm{AgNO}_3$ on heating but chloroform dose not because
1 $\mathrm{C}-\mathrm{I}$ bond in iodoform is weak and $\mathrm{C}-\mathrm{Cl}$ bond in chloroform is strong
2 Choroform is covalent
3 iodoform is ionic
4 None of the above
Explanation:
: $\mathrm{On}$ heating $\mathrm{C}-\mathrm{I}$ bond in $\mathrm{CHI}_3$ break, but $\mathrm{C}$ - $\mathrm{Cl}$ bond in $\mathrm{CHCl}_3$ does not break. Thus, $\mathrm{AgNO}_3$ gives precipitate AgI with iodoform.
UP CPMT-2008
Hydrocarbons
230099
Which among the following is most strained cycloalkane?
1 Cyclohexane
2 Cyclobutane
3 Cyclopropane
4 Cyclopentane
Explanation:
: Cyclopropane has the highest angle strain among the cyclobutane, cyclopentane and cyclohexane.
COMEDK 2020
Hydrocarbons
230100
Which one of the following reagents is used for detection of unsaturation in alkenes?
: Both bromine water or alkaline $\mathrm{KMnO}_4$ (Baeyer's reagent) are decolourised after the reaction with unsaturated compound. Unsaturation in alkyne or alkene in any organic compound is defected by reagents the organic compound with alkaline $\mathrm{KMnO}_4$ or bromine water.
230096
Which one of the following is the most energetic conformation of cyclohexane?
1 Boat
2 Twisted boat
3 Chair
4 Half chair
Explanation:
: Half chair is the most energetic and is the most stained and ustable conformation of cyclohexane.
COMEDK 2016
Hydrocarbons
230097
Methane can be converted to ethane by the reaction,
1 Chlorination followed by the reaction with alcoholic $\mathrm{KOH}$
2 Chlorination followed by the reaction with aqueous $\mathrm{KOH}$
3 Chlorination followed by Wurtz reaction
4 Chlorination followed by decarboxylation.
Explanation:
: Methane can be converted to ethane by the Wurtz reaction,
COMEDK 2018
Hydrocarbons
230268
Iodoform gives a precipitate with $\mathrm{AgNO}_3$ on heating but chloroform dose not because
1 $\mathrm{C}-\mathrm{I}$ bond in iodoform is weak and $\mathrm{C}-\mathrm{Cl}$ bond in chloroform is strong
2 Choroform is covalent
3 iodoform is ionic
4 None of the above
Explanation:
: $\mathrm{On}$ heating $\mathrm{C}-\mathrm{I}$ bond in $\mathrm{CHI}_3$ break, but $\mathrm{C}$ - $\mathrm{Cl}$ bond in $\mathrm{CHCl}_3$ does not break. Thus, $\mathrm{AgNO}_3$ gives precipitate AgI with iodoform.
UP CPMT-2008
Hydrocarbons
230099
Which among the following is most strained cycloalkane?
1 Cyclohexane
2 Cyclobutane
3 Cyclopropane
4 Cyclopentane
Explanation:
: Cyclopropane has the highest angle strain among the cyclobutane, cyclopentane and cyclohexane.
COMEDK 2020
Hydrocarbons
230100
Which one of the following reagents is used for detection of unsaturation in alkenes?
: Both bromine water or alkaline $\mathrm{KMnO}_4$ (Baeyer's reagent) are decolourised after the reaction with unsaturated compound. Unsaturation in alkyne or alkene in any organic compound is defected by reagents the organic compound with alkaline $\mathrm{KMnO}_4$ or bromine water.
