01. Alkenes
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Hydrocarbons

230433 Elimination of bromine from 2-bromobutane results in the formation of:

1 Predominantly 2-butyne
2 Predominantly l-butene
3 Predominantly 2-butene
4 Equimolar mixture of 1 and 2-butene
AIEEE 2005
Hydrocarbons

230434 Reaction of one molecule of $\mathrm{HBr}$ with one molecule of 1,3 -butadiene at $40^{\circ} \mathrm{C}$ gives predominantly:

1 1-bromo-2-butene under kinetically controlled conditions
2 3-bromobutene under thermodynamically controlled conditions
3 1-bromo-2-butene under thermodynamically controlled conditions
4 3-bromobutene under kinetically controlled conditions
AIEEE 2005
Hydrocarbons

230435 The reaction of propene with $\mathrm{HOCl}\left(\mathrm{Cl}_2+\right.$ $\left.\mathrm{H}_2 \mathrm{O}\right)$ proceeds through the intermediate:

1 $\mathrm{CH}_3 \stackrel{+}{\mathrm{C}} \mathrm{HCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_3 \mathrm{CH}(\mathrm{OH}) \stackrel{+}{\mathrm{C}} \mathrm{H}_2$
3 $\mathrm{CH}_3 \mathrm{CHCl}^{+} \mathrm{H}_2$
4 $\mathrm{CH}_3+\stackrel{+}{\mathrm{C}} \mathrm{HCH}_2 \mathrm{OH}$
JEE Main 2016
Hydrocarbons

230484 The presence of $\mathrm{Ag}^{+}$ion increases the solubility of alkenes due to the formation of:

1 $\mathrm{d} \pi$-do bonding
2 $p \sigma-p \pi$ bonding
3 $\mathrm{p} \pi-\mathrm{d} \pi$ bonding
4 $\mathrm{p} \pi-\mathrm{d} \sigma$ bonding
5 non of the above
Kerala-CEE-2004
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Hydrocarbons

230433 Elimination of bromine from 2-bromobutane results in the formation of:

1 Predominantly 2-butyne
2 Predominantly l-butene
3 Predominantly 2-butene
4 Equimolar mixture of 1 and 2-butene
AIEEE 2005
Hydrocarbons

230434 Reaction of one molecule of $\mathrm{HBr}$ with one molecule of 1,3 -butadiene at $40^{\circ} \mathrm{C}$ gives predominantly:

1 1-bromo-2-butene under kinetically controlled conditions
2 3-bromobutene under thermodynamically controlled conditions
3 1-bromo-2-butene under thermodynamically controlled conditions
4 3-bromobutene under kinetically controlled conditions
AIEEE 2005
Hydrocarbons

230435 The reaction of propene with $\mathrm{HOCl}\left(\mathrm{Cl}_2+\right.$ $\left.\mathrm{H}_2 \mathrm{O}\right)$ proceeds through the intermediate:

1 $\mathrm{CH}_3 \stackrel{+}{\mathrm{C}} \mathrm{HCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_3 \mathrm{CH}(\mathrm{OH}) \stackrel{+}{\mathrm{C}} \mathrm{H}_2$
3 $\mathrm{CH}_3 \mathrm{CHCl}^{+} \mathrm{H}_2$
4 $\mathrm{CH}_3+\stackrel{+}{\mathrm{C}} \mathrm{HCH}_2 \mathrm{OH}$
JEE Main 2016
Hydrocarbons

230484 The presence of $\mathrm{Ag}^{+}$ion increases the solubility of alkenes due to the formation of:

1 $\mathrm{d} \pi$-do bonding
2 $p \sigma-p \pi$ bonding
3 $\mathrm{p} \pi-\mathrm{d} \pi$ bonding
4 $\mathrm{p} \pi-\mathrm{d} \sigma$ bonding
5 non of the above
Kerala-CEE-2004
NEET DIGITAL LIBRARY
Hydrocarbons

230433 Elimination of bromine from 2-bromobutane results in the formation of:

1 Predominantly 2-butyne
2 Predominantly l-butene
3 Predominantly 2-butene
4 Equimolar mixture of 1 and 2-butene
AIEEE 2005
Hydrocarbons

230434 Reaction of one molecule of $\mathrm{HBr}$ with one molecule of 1,3 -butadiene at $40^{\circ} \mathrm{C}$ gives predominantly:

1 1-bromo-2-butene under kinetically controlled conditions
2 3-bromobutene under thermodynamically controlled conditions
3 1-bromo-2-butene under thermodynamically controlled conditions
4 3-bromobutene under kinetically controlled conditions
AIEEE 2005
Hydrocarbons

230435 The reaction of propene with $\mathrm{HOCl}\left(\mathrm{Cl}_2+\right.$ $\left.\mathrm{H}_2 \mathrm{O}\right)$ proceeds through the intermediate:

1 $\mathrm{CH}_3 \stackrel{+}{\mathrm{C}} \mathrm{HCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_3 \mathrm{CH}(\mathrm{OH}) \stackrel{+}{\mathrm{C}} \mathrm{H}_2$
3 $\mathrm{CH}_3 \mathrm{CHCl}^{+} \mathrm{H}_2$
4 $\mathrm{CH}_3+\stackrel{+}{\mathrm{C}} \mathrm{HCH}_2 \mathrm{OH}$
JEE Main 2016
Hydrocarbons

230484 The presence of $\mathrm{Ag}^{+}$ion increases the solubility of alkenes due to the formation of:

1 $\mathrm{d} \pi$-do bonding
2 $p \sigma-p \pi$ bonding
3 $\mathrm{p} \pi-\mathrm{d} \pi$ bonding
4 $\mathrm{p} \pi-\mathrm{d} \sigma$ bonding
5 non of the above
Kerala-CEE-2004
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Hydrocarbons

230433 Elimination of bromine from 2-bromobutane results in the formation of:

1 Predominantly 2-butyne
2 Predominantly l-butene
3 Predominantly 2-butene
4 Equimolar mixture of 1 and 2-butene
AIEEE 2005
Hydrocarbons

230434 Reaction of one molecule of $\mathrm{HBr}$ with one molecule of 1,3 -butadiene at $40^{\circ} \mathrm{C}$ gives predominantly:

1 1-bromo-2-butene under kinetically controlled conditions
2 3-bromobutene under thermodynamically controlled conditions
3 1-bromo-2-butene under thermodynamically controlled conditions
4 3-bromobutene under kinetically controlled conditions
AIEEE 2005
Hydrocarbons

230435 The reaction of propene with $\mathrm{HOCl}\left(\mathrm{Cl}_2+\right.$ $\left.\mathrm{H}_2 \mathrm{O}\right)$ proceeds through the intermediate:

1 $\mathrm{CH}_3 \stackrel{+}{\mathrm{C}} \mathrm{HCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_3 \mathrm{CH}(\mathrm{OH}) \stackrel{+}{\mathrm{C}} \mathrm{H}_2$
3 $\mathrm{CH}_3 \mathrm{CHCl}^{+} \mathrm{H}_2$
4 $\mathrm{CH}_3+\stackrel{+}{\mathrm{C}} \mathrm{HCH}_2 \mathrm{OH}$
JEE Main 2016
Hydrocarbons

230484 The presence of $\mathrm{Ag}^{+}$ion increases the solubility of alkenes due to the formation of:

1 $\mathrm{d} \pi$-do bonding
2 $p \sigma-p \pi$ bonding
3 $\mathrm{p} \pi-\mathrm{d} \pi$ bonding
4 $\mathrm{p} \pi-\mathrm{d} \sigma$ bonding
5 non of the above
Kerala-CEE-2004
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