NEET Test Series from KOTA - 10 Papers In MS WORD
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Hydrocarbons
230452
Which of the following is formed when pent-1ene reacts with $\mathrm{HCl}$ ?
1 3-chloropentane
2 2-chloropentane
3 1,2-dichloropentane
4 1-chloropentane
Explanation:
: This reaction procced through Markownikoff's rule.
J and K CET-2002
Hydrocarbons
230462
Anti-Markownikoff's addition of $\mathrm{HBr}$ is not observed in
1 propene
2 1-butene
3 but-2-ene
4 pent-2-ene
Explanation:
: Anti-MarkownikofiPs rule is not applicable in case of symmetrical alkenes. The structures of the given compounds are Thus, anti-Markownikoff's rule is not applicable to but2-ene.
JCECE - 2011]
Hydrocarbons
230470
Which one of the following alkenes will react faster with $\mathrm{H}_2$ under catalytic hydrogenation conditions? ( $R=$ Alkyl substrituent)
1
2
3
4
Explanation:
: The stability of alkene, greater the number of alkyl group attached to the doubly bonded carbon atom, more stable is the alkene. Less substituted alkene is more react faster with $\mathrm{H}_2$ under catalytic hydrogenation condition. Hence, the give more faster
JIPMER-2007]
Hydrocarbons
230474
Polypropylene can be obtained by polymerization of
230452
Which of the following is formed when pent-1ene reacts with $\mathrm{HCl}$ ?
1 3-chloropentane
2 2-chloropentane
3 1,2-dichloropentane
4 1-chloropentane
Explanation:
: This reaction procced through Markownikoff's rule.
J and K CET-2002
Hydrocarbons
230462
Anti-Markownikoff's addition of $\mathrm{HBr}$ is not observed in
1 propene
2 1-butene
3 but-2-ene
4 pent-2-ene
Explanation:
: Anti-MarkownikofiPs rule is not applicable in case of symmetrical alkenes. The structures of the given compounds are Thus, anti-Markownikoff's rule is not applicable to but2-ene.
JCECE - 2011]
Hydrocarbons
230470
Which one of the following alkenes will react faster with $\mathrm{H}_2$ under catalytic hydrogenation conditions? ( $R=$ Alkyl substrituent)
1
2
3
4
Explanation:
: The stability of alkene, greater the number of alkyl group attached to the doubly bonded carbon atom, more stable is the alkene. Less substituted alkene is more react faster with $\mathrm{H}_2$ under catalytic hydrogenation condition. Hence, the give more faster
JIPMER-2007]
Hydrocarbons
230474
Polypropylene can be obtained by polymerization of
230452
Which of the following is formed when pent-1ene reacts with $\mathrm{HCl}$ ?
1 3-chloropentane
2 2-chloropentane
3 1,2-dichloropentane
4 1-chloropentane
Explanation:
: This reaction procced through Markownikoff's rule.
J and K CET-2002
Hydrocarbons
230462
Anti-Markownikoff's addition of $\mathrm{HBr}$ is not observed in
1 propene
2 1-butene
3 but-2-ene
4 pent-2-ene
Explanation:
: Anti-MarkownikofiPs rule is not applicable in case of symmetrical alkenes. The structures of the given compounds are Thus, anti-Markownikoff's rule is not applicable to but2-ene.
JCECE - 2011]
Hydrocarbons
230470
Which one of the following alkenes will react faster with $\mathrm{H}_2$ under catalytic hydrogenation conditions? ( $R=$ Alkyl substrituent)
1
2
3
4
Explanation:
: The stability of alkene, greater the number of alkyl group attached to the doubly bonded carbon atom, more stable is the alkene. Less substituted alkene is more react faster with $\mathrm{H}_2$ under catalytic hydrogenation condition. Hence, the give more faster
JIPMER-2007]
Hydrocarbons
230474
Polypropylene can be obtained by polymerization of
230452
Which of the following is formed when pent-1ene reacts with $\mathrm{HCl}$ ?
1 3-chloropentane
2 2-chloropentane
3 1,2-dichloropentane
4 1-chloropentane
Explanation:
: This reaction procced through Markownikoff's rule.
J and K CET-2002
Hydrocarbons
230462
Anti-Markownikoff's addition of $\mathrm{HBr}$ is not observed in
1 propene
2 1-butene
3 but-2-ene
4 pent-2-ene
Explanation:
: Anti-MarkownikofiPs rule is not applicable in case of symmetrical alkenes. The structures of the given compounds are Thus, anti-Markownikoff's rule is not applicable to but2-ene.
JCECE - 2011]
Hydrocarbons
230470
Which one of the following alkenes will react faster with $\mathrm{H}_2$ under catalytic hydrogenation conditions? ( $R=$ Alkyl substrituent)
1
2
3
4
Explanation:
: The stability of alkene, greater the number of alkyl group attached to the doubly bonded carbon atom, more stable is the alkene. Less substituted alkene is more react faster with $\mathrm{H}_2$ under catalytic hydrogenation condition. Hence, the give more faster
JIPMER-2007]
Hydrocarbons
230474
Polypropylene can be obtained by polymerization of
give more faster
