231385
Which of the following compound show acidic nature?
1 but-1-yne
2 bup-2-yne
3 but-1-ene
4 buta-1, 3 diene
Explanation:
Alkyne have 50\% s-character and alkene have $33.33 \%$ s-character. Higher the s-character, higher is acidic strength. But that alkyne which have acidic hydrogen, show the affective acidic strength. The terminal alkyne have acidic hydrogen. Hence, but-1-yne is acidic in nature.
CG PET- 2013
GENERAL ORGANIC CHEMISTRY
231388
The type of hybridisation present in each carbon of benzene is
1 $\mathrm{sp}^{3}$
2 $\mathrm{sp}^{2}$
3 $\mathrm{sp}$
4 None of these
Explanation:
In benzene ring the $\pi$-electron is symmetrically distributed. Hence all the six carbon atom have $\mathrm{sp}^{2}$ hybridization. Because from each $1 \mathrm{p}$ and $1 \mathrm{~s}$ orbital electron delocalized in $\pi$-electrons.
CG PET -2006
GENERAL ORGANIC CHEMISTRY
231394
Which one of the following will most readily be dehydrated in acidic solution?
1
2
3
4
Explanation:
(A)
CG PET- 2015
GENERAL ORGANIC CHEMISTRY
231412
Due to the presence of an unpaired electron, free radicals are
1 Cations
2 Anions
3 Chemically inactive
4 Chemically reactive
Explanation:
The free radical is a intermediate of $\mathrm{rx}^{\mathrm{h}}$ in which the one electron is less and not complete its octet. Hence, to their octet it reacts the other species. Hence it is chemically reactive. So, option (d) is correct.
231385
Which of the following compound show acidic nature?
1 but-1-yne
2 bup-2-yne
3 but-1-ene
4 buta-1, 3 diene
Explanation:
Alkyne have 50\% s-character and alkene have $33.33 \%$ s-character. Higher the s-character, higher is acidic strength. But that alkyne which have acidic hydrogen, show the affective acidic strength. The terminal alkyne have acidic hydrogen. Hence, but-1-yne is acidic in nature.
CG PET- 2013
GENERAL ORGANIC CHEMISTRY
231388
The type of hybridisation present in each carbon of benzene is
1 $\mathrm{sp}^{3}$
2 $\mathrm{sp}^{2}$
3 $\mathrm{sp}$
4 None of these
Explanation:
In benzene ring the $\pi$-electron is symmetrically distributed. Hence all the six carbon atom have $\mathrm{sp}^{2}$ hybridization. Because from each $1 \mathrm{p}$ and $1 \mathrm{~s}$ orbital electron delocalized in $\pi$-electrons.
CG PET -2006
GENERAL ORGANIC CHEMISTRY
231394
Which one of the following will most readily be dehydrated in acidic solution?
1
2
3
4
Explanation:
(A)
CG PET- 2015
GENERAL ORGANIC CHEMISTRY
231412
Due to the presence of an unpaired electron, free radicals are
1 Cations
2 Anions
3 Chemically inactive
4 Chemically reactive
Explanation:
The free radical is a intermediate of $\mathrm{rx}^{\mathrm{h}}$ in which the one electron is less and not complete its octet. Hence, to their octet it reacts the other species. Hence it is chemically reactive. So, option (d) is correct.
231385
Which of the following compound show acidic nature?
1 but-1-yne
2 bup-2-yne
3 but-1-ene
4 buta-1, 3 diene
Explanation:
Alkyne have 50\% s-character and alkene have $33.33 \%$ s-character. Higher the s-character, higher is acidic strength. But that alkyne which have acidic hydrogen, show the affective acidic strength. The terminal alkyne have acidic hydrogen. Hence, but-1-yne is acidic in nature.
CG PET- 2013
GENERAL ORGANIC CHEMISTRY
231388
The type of hybridisation present in each carbon of benzene is
1 $\mathrm{sp}^{3}$
2 $\mathrm{sp}^{2}$
3 $\mathrm{sp}$
4 None of these
Explanation:
In benzene ring the $\pi$-electron is symmetrically distributed. Hence all the six carbon atom have $\mathrm{sp}^{2}$ hybridization. Because from each $1 \mathrm{p}$ and $1 \mathrm{~s}$ orbital electron delocalized in $\pi$-electrons.
CG PET -2006
GENERAL ORGANIC CHEMISTRY
231394
Which one of the following will most readily be dehydrated in acidic solution?
1
2
3
4
Explanation:
(A)
CG PET- 2015
GENERAL ORGANIC CHEMISTRY
231412
Due to the presence of an unpaired electron, free radicals are
1 Cations
2 Anions
3 Chemically inactive
4 Chemically reactive
Explanation:
The free radical is a intermediate of $\mathrm{rx}^{\mathrm{h}}$ in which the one electron is less and not complete its octet. Hence, to their octet it reacts the other species. Hence it is chemically reactive. So, option (d) is correct.
231385
Which of the following compound show acidic nature?
1 but-1-yne
2 bup-2-yne
3 but-1-ene
4 buta-1, 3 diene
Explanation:
Alkyne have 50\% s-character and alkene have $33.33 \%$ s-character. Higher the s-character, higher is acidic strength. But that alkyne which have acidic hydrogen, show the affective acidic strength. The terminal alkyne have acidic hydrogen. Hence, but-1-yne is acidic in nature.
CG PET- 2013
GENERAL ORGANIC CHEMISTRY
231388
The type of hybridisation present in each carbon of benzene is
1 $\mathrm{sp}^{3}$
2 $\mathrm{sp}^{2}$
3 $\mathrm{sp}$
4 None of these
Explanation:
In benzene ring the $\pi$-electron is symmetrically distributed. Hence all the six carbon atom have $\mathrm{sp}^{2}$ hybridization. Because from each $1 \mathrm{p}$ and $1 \mathrm{~s}$ orbital electron delocalized in $\pi$-electrons.
CG PET -2006
GENERAL ORGANIC CHEMISTRY
231394
Which one of the following will most readily be dehydrated in acidic solution?
1
2
3
4
Explanation:
(A)
CG PET- 2015
GENERAL ORGANIC CHEMISTRY
231412
Due to the presence of an unpaired electron, free radicals are
1 Cations
2 Anions
3 Chemically inactive
4 Chemically reactive
Explanation:
The free radical is a intermediate of $\mathrm{rx}^{\mathrm{h}}$ in which the one electron is less and not complete its octet. Hence, to their octet it reacts the other species. Hence it is chemically reactive. So, option (d) is correct.
