NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI13:HYDROCARBONS
318087
Assertion : Cis-2-butene gives meso-2, 3-butanediol with dilute alkaline \(\mathrm{KMnO}_{4}\) solution. Reason : Dilute alkaline \(\mathrm{KMnO}_{4}\) solution gives trans addition with alkenes.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Cis alkene - syn addtion - meso product. Alkaline \(\mathrm{KMnO}_{4}\) always gives syn -addition on olefins. So, option (3) is correct.
CHXI13:HYDROCARBONS
318088
Assertion : Polymerisation of ethylene gives polythene. Reason : Polythene formation is a substitution reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Alkenes in the presence of traces of oxygen and at high temperature and pressure undergo polymerisation. Its an addition reaction. \(\mathrm{nCH}_{2}=\mathrm{CH}_{2} \xrightarrow[\text { traces of } \mathrm{O}_{2}]{473 \mathrm{~K}, 1500 \mathrm{~atm}} \underset{\text { Polyethylene (Polythene) }}{\left(\mathrm{CH}_{2}-\mathrm{CH}_{2}\right)_{\mathrm{n}}}\) So, option (3) is correct .
CHXI13:HYDROCARBONS
318089
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of \({\text{44}}\,\,{\text{u}}\). The alkene is
1 Propene
2 1-butene
3 2-butene
4 Ethene
Explanation:
The given molecular formula suggests that the aldehyde formed will be acetaldehyde hence the alkene will be \(\xrightarrow{{{\text{Zn/}}{{\text{H}}_{\text{2}}}{\text{O}}}}{\text{2C}}{{\text{H}}_{\text{3}}}{\text{CHO + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\)
CHXI13:HYDROCARBONS
318090
What are the final products obtained by ozonolysis of propene?
318087
Assertion : Cis-2-butene gives meso-2, 3-butanediol with dilute alkaline \(\mathrm{KMnO}_{4}\) solution. Reason : Dilute alkaline \(\mathrm{KMnO}_{4}\) solution gives trans addition with alkenes.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Cis alkene - syn addtion - meso product. Alkaline \(\mathrm{KMnO}_{4}\) always gives syn -addition on olefins. So, option (3) is correct.
CHXI13:HYDROCARBONS
318088
Assertion : Polymerisation of ethylene gives polythene. Reason : Polythene formation is a substitution reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Alkenes in the presence of traces of oxygen and at high temperature and pressure undergo polymerisation. Its an addition reaction. \(\mathrm{nCH}_{2}=\mathrm{CH}_{2} \xrightarrow[\text { traces of } \mathrm{O}_{2}]{473 \mathrm{~K}, 1500 \mathrm{~atm}} \underset{\text { Polyethylene (Polythene) }}{\left(\mathrm{CH}_{2}-\mathrm{CH}_{2}\right)_{\mathrm{n}}}\) So, option (3) is correct .
CHXI13:HYDROCARBONS
318089
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of \({\text{44}}\,\,{\text{u}}\). The alkene is
1 Propene
2 1-butene
3 2-butene
4 Ethene
Explanation:
The given molecular formula suggests that the aldehyde formed will be acetaldehyde hence the alkene will be \(\xrightarrow{{{\text{Zn/}}{{\text{H}}_{\text{2}}}{\text{O}}}}{\text{2C}}{{\text{H}}_{\text{3}}}{\text{CHO + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\)
CHXI13:HYDROCARBONS
318090
What are the final products obtained by ozonolysis of propene?
318087
Assertion : Cis-2-butene gives meso-2, 3-butanediol with dilute alkaline \(\mathrm{KMnO}_{4}\) solution. Reason : Dilute alkaline \(\mathrm{KMnO}_{4}\) solution gives trans addition with alkenes.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Cis alkene - syn addtion - meso product. Alkaline \(\mathrm{KMnO}_{4}\) always gives syn -addition on olefins. So, option (3) is correct.
CHXI13:HYDROCARBONS
318088
Assertion : Polymerisation of ethylene gives polythene. Reason : Polythene formation is a substitution reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Alkenes in the presence of traces of oxygen and at high temperature and pressure undergo polymerisation. Its an addition reaction. \(\mathrm{nCH}_{2}=\mathrm{CH}_{2} \xrightarrow[\text { traces of } \mathrm{O}_{2}]{473 \mathrm{~K}, 1500 \mathrm{~atm}} \underset{\text { Polyethylene (Polythene) }}{\left(\mathrm{CH}_{2}-\mathrm{CH}_{2}\right)_{\mathrm{n}}}\) So, option (3) is correct .
CHXI13:HYDROCARBONS
318089
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of \({\text{44}}\,\,{\text{u}}\). The alkene is
1 Propene
2 1-butene
3 2-butene
4 Ethene
Explanation:
The given molecular formula suggests that the aldehyde formed will be acetaldehyde hence the alkene will be \(\xrightarrow{{{\text{Zn/}}{{\text{H}}_{\text{2}}}{\text{O}}}}{\text{2C}}{{\text{H}}_{\text{3}}}{\text{CHO + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\)
CHXI13:HYDROCARBONS
318090
What are the final products obtained by ozonolysis of propene?
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
CHXI13:HYDROCARBONS
318087
Assertion : Cis-2-butene gives meso-2, 3-butanediol with dilute alkaline \(\mathrm{KMnO}_{4}\) solution. Reason : Dilute alkaline \(\mathrm{KMnO}_{4}\) solution gives trans addition with alkenes.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Cis alkene - syn addtion - meso product. Alkaline \(\mathrm{KMnO}_{4}\) always gives syn -addition on olefins. So, option (3) is correct.
CHXI13:HYDROCARBONS
318088
Assertion : Polymerisation of ethylene gives polythene. Reason : Polythene formation is a substitution reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Alkenes in the presence of traces of oxygen and at high temperature and pressure undergo polymerisation. Its an addition reaction. \(\mathrm{nCH}_{2}=\mathrm{CH}_{2} \xrightarrow[\text { traces of } \mathrm{O}_{2}]{473 \mathrm{~K}, 1500 \mathrm{~atm}} \underset{\text { Polyethylene (Polythene) }}{\left(\mathrm{CH}_{2}-\mathrm{CH}_{2}\right)_{\mathrm{n}}}\) So, option (3) is correct .
CHXI13:HYDROCARBONS
318089
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of \({\text{44}}\,\,{\text{u}}\). The alkene is
1 Propene
2 1-butene
3 2-butene
4 Ethene
Explanation:
The given molecular formula suggests that the aldehyde formed will be acetaldehyde hence the alkene will be \(\xrightarrow{{{\text{Zn/}}{{\text{H}}_{\text{2}}}{\text{O}}}}{\text{2C}}{{\text{H}}_{\text{3}}}{\text{CHO + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\)
CHXI13:HYDROCARBONS
318090
What are the final products obtained by ozonolysis of propene?
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