Miscellaneous Questions based on Hydrocarbons
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CHXI13:HYDROCARBONS

318343 Given below are two statements.
Statement I : The presence of weaker \(\pi\)-bonds make alkenes less stable than alkanes.
Statement II : The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.

1 Both Statement I and Statement II are correct.
2 Both Statement I and Statement II are incorrect.
3 Statement I is correct but Statement II is incorrect.
4 Statement I is incorrect but Statement II is correct.
JEE - 2022
CHXI13:HYDROCARBONS

318344 Which of the following is true?

1 Acetylene is more reactive than ethylene to an electrophilic attack
2 Acetylene is less reactive than ethylene towards electrophilic attack
3 Acetylene may show more or less reactivity towards electrophilic reagent.
4 Acetylene and ethylene show identical reactivities towards an electrophilic attack
CHXI13:HYDROCARBONS

318345 Match the following
Column I
Column II
A
Acetylene
P
\({\rm{HCHO}}\,\,{\rm{\& }}\,\,{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{CHO}}\)
B
Ethylene
Q
\(\,{\rm{2C}}{{\rm{H}}_{\rm{3}}}{\rm{CHO}}\)
C
Benzene
R
One mole of \({{\rm{(CHO)}}_{\rm{2}}}\)
D
2- Butene
S
3 moles of \({{\rm{(CHO)}}_{\rm{2}}}\)
T
\({\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 \(\mathrm{A}-\mathrm{R}, \quad \mathrm{B}-\mathrm{Q}, \quad \mathrm{C}-\mathrm{T}, \quad \mathrm{D}-\mathrm{S}\)
2 \(\mathrm{A}-\mathrm{S}, \quad \mathrm{B}-\mathrm{Q}, \quad \mathrm{C}-\mathrm{P}, \quad \mathrm{D}-\mathrm{R}\)
3 \(\mathrm{A}-\mathrm{R}, \quad \mathrm{B}-\mathrm{T}, \quad \mathrm{C}-\mathrm{S}, \quad \mathrm{D}-\mathrm{Q}\)
4 \(\mathrm{A}-\mathrm{T}, \quad \mathrm{B}-\mathrm{R}, \quad \mathrm{C}-\mathrm{P}, \quad \mathrm{D}-\mathrm{S}\)
CHXI13:HYDROCARBONS

318346 Which of the following statements is true about catalytic hydrogenation of alkenes and alkynes?

1 Reaction is exothermic but catalyst is required to reduce the activation energy.
2 Reaction is exothermic but catalyst is required to increase the activation energy.
3 Reaction is endothermic but catalyst is required to reduce the activation energy.
4 Reaction is endothermic but catalyst is required to increase the activation energy.
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CHXI13:HYDROCARBONS

318343 Given below are two statements.
Statement I : The presence of weaker \(\pi\)-bonds make alkenes less stable than alkanes.
Statement II : The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.

1 Both Statement I and Statement II are correct.
2 Both Statement I and Statement II are incorrect.
3 Statement I is correct but Statement II is incorrect.
4 Statement I is incorrect but Statement II is correct.
JEE - 2022
CHXI13:HYDROCARBONS

318344 Which of the following is true?

1 Acetylene is more reactive than ethylene to an electrophilic attack
2 Acetylene is less reactive than ethylene towards electrophilic attack
3 Acetylene may show more or less reactivity towards electrophilic reagent.
4 Acetylene and ethylene show identical reactivities towards an electrophilic attack
CHXI13:HYDROCARBONS

318345 Match the following
Column I
Column II
A
Acetylene
P
\({\rm{HCHO}}\,\,{\rm{\& }}\,\,{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{CHO}}\)
B
Ethylene
Q
\(\,{\rm{2C}}{{\rm{H}}_{\rm{3}}}{\rm{CHO}}\)
C
Benzene
R
One mole of \({{\rm{(CHO)}}_{\rm{2}}}\)
D
2- Butene
S
3 moles of \({{\rm{(CHO)}}_{\rm{2}}}\)
T
\({\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 \(\mathrm{A}-\mathrm{R}, \quad \mathrm{B}-\mathrm{Q}, \quad \mathrm{C}-\mathrm{T}, \quad \mathrm{D}-\mathrm{S}\)
2 \(\mathrm{A}-\mathrm{S}, \quad \mathrm{B}-\mathrm{Q}, \quad \mathrm{C}-\mathrm{P}, \quad \mathrm{D}-\mathrm{R}\)
3 \(\mathrm{A}-\mathrm{R}, \quad \mathrm{B}-\mathrm{T}, \quad \mathrm{C}-\mathrm{S}, \quad \mathrm{D}-\mathrm{Q}\)
4 \(\mathrm{A}-\mathrm{T}, \quad \mathrm{B}-\mathrm{R}, \quad \mathrm{C}-\mathrm{P}, \quad \mathrm{D}-\mathrm{S}\)
CHXI13:HYDROCARBONS

318346 Which of the following statements is true about catalytic hydrogenation of alkenes and alkynes?

1 Reaction is exothermic but catalyst is required to reduce the activation energy.
2 Reaction is exothermic but catalyst is required to increase the activation energy.
3 Reaction is endothermic but catalyst is required to reduce the activation energy.
4 Reaction is endothermic but catalyst is required to increase the activation energy.
NEET DIGITAL LIBRARY
CHXI13:HYDROCARBONS

318343 Given below are two statements.
Statement I : The presence of weaker \(\pi\)-bonds make alkenes less stable than alkanes.
Statement II : The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.

1 Both Statement I and Statement II are correct.
2 Both Statement I and Statement II are incorrect.
3 Statement I is correct but Statement II is incorrect.
4 Statement I is incorrect but Statement II is correct.
JEE - 2022
CHXI13:HYDROCARBONS

318344 Which of the following is true?

1 Acetylene is more reactive than ethylene to an electrophilic attack
2 Acetylene is less reactive than ethylene towards electrophilic attack
3 Acetylene may show more or less reactivity towards electrophilic reagent.
4 Acetylene and ethylene show identical reactivities towards an electrophilic attack
CHXI13:HYDROCARBONS

318345 Match the following
Column I
Column II
A
Acetylene
P
\({\rm{HCHO}}\,\,{\rm{\& }}\,\,{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{CHO}}\)
B
Ethylene
Q
\(\,{\rm{2C}}{{\rm{H}}_{\rm{3}}}{\rm{CHO}}\)
C
Benzene
R
One mole of \({{\rm{(CHO)}}_{\rm{2}}}\)
D
2- Butene
S
3 moles of \({{\rm{(CHO)}}_{\rm{2}}}\)
T
\({\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 \(\mathrm{A}-\mathrm{R}, \quad \mathrm{B}-\mathrm{Q}, \quad \mathrm{C}-\mathrm{T}, \quad \mathrm{D}-\mathrm{S}\)
2 \(\mathrm{A}-\mathrm{S}, \quad \mathrm{B}-\mathrm{Q}, \quad \mathrm{C}-\mathrm{P}, \quad \mathrm{D}-\mathrm{R}\)
3 \(\mathrm{A}-\mathrm{R}, \quad \mathrm{B}-\mathrm{T}, \quad \mathrm{C}-\mathrm{S}, \quad \mathrm{D}-\mathrm{Q}\)
4 \(\mathrm{A}-\mathrm{T}, \quad \mathrm{B}-\mathrm{R}, \quad \mathrm{C}-\mathrm{P}, \quad \mathrm{D}-\mathrm{S}\)
CHXI13:HYDROCARBONS

318346 Which of the following statements is true about catalytic hydrogenation of alkenes and alkynes?

1 Reaction is exothermic but catalyst is required to reduce the activation energy.
2 Reaction is exothermic but catalyst is required to increase the activation energy.
3 Reaction is endothermic but catalyst is required to reduce the activation energy.
4 Reaction is endothermic but catalyst is required to increase the activation energy.
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CHXI13:HYDROCARBONS

318343 Given below are two statements.
Statement I : The presence of weaker \(\pi\)-bonds make alkenes less stable than alkanes.
Statement II : The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.

1 Both Statement I and Statement II are correct.
2 Both Statement I and Statement II are incorrect.
3 Statement I is correct but Statement II is incorrect.
4 Statement I is incorrect but Statement II is correct.
JEE - 2022
CHXI13:HYDROCARBONS

318344 Which of the following is true?

1 Acetylene is more reactive than ethylene to an electrophilic attack
2 Acetylene is less reactive than ethylene towards electrophilic attack
3 Acetylene may show more or less reactivity towards electrophilic reagent.
4 Acetylene and ethylene show identical reactivities towards an electrophilic attack
CHXI13:HYDROCARBONS

318345 Match the following
Column I
Column II
A
Acetylene
P
\({\rm{HCHO}}\,\,{\rm{\& }}\,\,{\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{CHO}}\)
B
Ethylene
Q
\(\,{\rm{2C}}{{\rm{H}}_{\rm{3}}}{\rm{CHO}}\)
C
Benzene
R
One mole of \({{\rm{(CHO)}}_{\rm{2}}}\)
D
2- Butene
S
3 moles of \({{\rm{(CHO)}}_{\rm{2}}}\)
T
\({\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 \(\mathrm{A}-\mathrm{R}, \quad \mathrm{B}-\mathrm{Q}, \quad \mathrm{C}-\mathrm{T}, \quad \mathrm{D}-\mathrm{S}\)
2 \(\mathrm{A}-\mathrm{S}, \quad \mathrm{B}-\mathrm{Q}, \quad \mathrm{C}-\mathrm{P}, \quad \mathrm{D}-\mathrm{R}\)
3 \(\mathrm{A}-\mathrm{R}, \quad \mathrm{B}-\mathrm{T}, \quad \mathrm{C}-\mathrm{S}, \quad \mathrm{D}-\mathrm{Q}\)
4 \(\mathrm{A}-\mathrm{T}, \quad \mathrm{B}-\mathrm{R}, \quad \mathrm{C}-\mathrm{P}, \quad \mathrm{D}-\mathrm{S}\)
CHXI13:HYDROCARBONS

318346 Which of the following statements is true about catalytic hydrogenation of alkenes and alkynes?

1 Reaction is exothermic but catalyst is required to reduce the activation energy.
2 Reaction is exothermic but catalyst is required to increase the activation energy.
3 Reaction is endothermic but catalyst is required to reduce the activation energy.
4 Reaction is endothermic but catalyst is required to increase the activation energy.
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