230409
In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ which is effective factor?
1 Porosity of $\mathrm{Al}_2 \mathrm{O}_3$
2 Temperature
3 Concentration
4 Surface area of $\mathrm{Al}_2 \mathrm{O}_3$
Explanation:
: In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ temperature is the effective factor for dehydration of alcohol by $\mathrm{Al}_2 \mathrm{O}_3$. e.g-
BCECE-2012]
Hydrocarbons
230414
The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is
1 $\mathrm{CH}_3 \mathrm{CHCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_2 \mathrm{CHCH}_3$
3 $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2$
4 $\mathrm{CH}_3 \mathrm{CH}_2+\mathrm{CH}_2$
Explanation:
: The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is $\mathrm{CH}_3-\mathrm{CH}^{+}-\mathrm{CH}_3$.
BITSAT- 2009
Hydrocarbons
230416
The olefin which on ozonolysis gives $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$ is
1 2-butene
2 1-pentene
3 1-butene
4 2-pentene CGPET-2016]**
Explanation:
: 2-Pentene on ozonolysis to give a $\mathrm{CH}_3-\mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$. $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_3 \stackrel{\text { Ozonolysis }}{\longrightarrow}$
Hydrocarbons
230418
Propyne and propene can $b$ distinguished by
1 cone, $\mathrm{H}_2 \mathrm{SO}_4$
2 $\mathrm{Br}_2$ in $\mathrm{CCl}_4$
3 dil, $\mathrm{H}_2 \mathrm{SO}_4$
4 $\mathrm{AgNO}_3$ in ammonia
Explanation:
: Propene and propyne are distinguished by common chemicals tests namely ammonical silver nitrate or ammonical cuprous chloride. Ammonical silver nitrate is also called as Tollen's reagent. When propyne is mixed with ammonical silver nitrate a white precipitate is formed. Whereas there is no reaction when Tollen's reagent to propene. Propyne + ammonical silver nitrate $\rightarrow$ silver acetylide (white ppt) $+\mathrm{NH}_3+\mathrm{H}_2 \mathrm{O}$ Propene + ammonical silver nitrate $\rightarrow$ No reaction.
CG PET- 2012
Hydrocarbons
230425
In the reaction, $\mathrm{CH}_3 \mathrm{COOH} \stackrel{\text { LNIl }_4}{\longrightarrow} \mathrm{A} \stackrel{\mathrm{NC}_4}{\longrightarrow} \mathrm{B} \stackrel{\text { *c.kI }}{\longrightarrow} \mathrm{C}$ the product $C$ is
1 acetaldehyde
2 acetylene
3 ethylene
4 acetylchloride
Explanation:
: In the reaction, the produce ' $C$ ' is ethylene.
230409
In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ which is effective factor?
1 Porosity of $\mathrm{Al}_2 \mathrm{O}_3$
2 Temperature
3 Concentration
4 Surface area of $\mathrm{Al}_2 \mathrm{O}_3$
Explanation:
: In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ temperature is the effective factor for dehydration of alcohol by $\mathrm{Al}_2 \mathrm{O}_3$. e.g-
BCECE-2012]
Hydrocarbons
230414
The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is
1 $\mathrm{CH}_3 \mathrm{CHCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_2 \mathrm{CHCH}_3$
3 $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2$
4 $\mathrm{CH}_3 \mathrm{CH}_2+\mathrm{CH}_2$
Explanation:
: The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is $\mathrm{CH}_3-\mathrm{CH}^{+}-\mathrm{CH}_3$.
BITSAT- 2009
Hydrocarbons
230416
The olefin which on ozonolysis gives $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$ is
1 2-butene
2 1-pentene
3 1-butene
4 2-pentene CGPET-2016]**
Explanation:
: 2-Pentene on ozonolysis to give a $\mathrm{CH}_3-\mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$. $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_3 \stackrel{\text { Ozonolysis }}{\longrightarrow}$
Hydrocarbons
230418
Propyne and propene can $b$ distinguished by
1 cone, $\mathrm{H}_2 \mathrm{SO}_4$
2 $\mathrm{Br}_2$ in $\mathrm{CCl}_4$
3 dil, $\mathrm{H}_2 \mathrm{SO}_4$
4 $\mathrm{AgNO}_3$ in ammonia
Explanation:
: Propene and propyne are distinguished by common chemicals tests namely ammonical silver nitrate or ammonical cuprous chloride. Ammonical silver nitrate is also called as Tollen's reagent. When propyne is mixed with ammonical silver nitrate a white precipitate is formed. Whereas there is no reaction when Tollen's reagent to propene. Propyne + ammonical silver nitrate $\rightarrow$ silver acetylide (white ppt) $+\mathrm{NH}_3+\mathrm{H}_2 \mathrm{O}$ Propene + ammonical silver nitrate $\rightarrow$ No reaction.
CG PET- 2012
Hydrocarbons
230425
In the reaction, $\mathrm{CH}_3 \mathrm{COOH} \stackrel{\text { LNIl }_4}{\longrightarrow} \mathrm{A} \stackrel{\mathrm{NC}_4}{\longrightarrow} \mathrm{B} \stackrel{\text { *c.kI }}{\longrightarrow} \mathrm{C}$ the product $C$ is
1 acetaldehyde
2 acetylene
3 ethylene
4 acetylchloride
Explanation:
: In the reaction, the produce ' $C$ ' is ethylene.
230409
In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ which is effective factor?
1 Porosity of $\mathrm{Al}_2 \mathrm{O}_3$
2 Temperature
3 Concentration
4 Surface area of $\mathrm{Al}_2 \mathrm{O}_3$
Explanation:
: In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ temperature is the effective factor for dehydration of alcohol by $\mathrm{Al}_2 \mathrm{O}_3$. e.g-
BCECE-2012]
Hydrocarbons
230414
The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is
1 $\mathrm{CH}_3 \mathrm{CHCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_2 \mathrm{CHCH}_3$
3 $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2$
4 $\mathrm{CH}_3 \mathrm{CH}_2+\mathrm{CH}_2$
Explanation:
: The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is $\mathrm{CH}_3-\mathrm{CH}^{+}-\mathrm{CH}_3$.
BITSAT- 2009
Hydrocarbons
230416
The olefin which on ozonolysis gives $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$ is
1 2-butene
2 1-pentene
3 1-butene
4 2-pentene CGPET-2016]**
Explanation:
: 2-Pentene on ozonolysis to give a $\mathrm{CH}_3-\mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$. $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_3 \stackrel{\text { Ozonolysis }}{\longrightarrow}$
Hydrocarbons
230418
Propyne and propene can $b$ distinguished by
1 cone, $\mathrm{H}_2 \mathrm{SO}_4$
2 $\mathrm{Br}_2$ in $\mathrm{CCl}_4$
3 dil, $\mathrm{H}_2 \mathrm{SO}_4$
4 $\mathrm{AgNO}_3$ in ammonia
Explanation:
: Propene and propyne are distinguished by common chemicals tests namely ammonical silver nitrate or ammonical cuprous chloride. Ammonical silver nitrate is also called as Tollen's reagent. When propyne is mixed with ammonical silver nitrate a white precipitate is formed. Whereas there is no reaction when Tollen's reagent to propene. Propyne + ammonical silver nitrate $\rightarrow$ silver acetylide (white ppt) $+\mathrm{NH}_3+\mathrm{H}_2 \mathrm{O}$ Propene + ammonical silver nitrate $\rightarrow$ No reaction.
CG PET- 2012
Hydrocarbons
230425
In the reaction, $\mathrm{CH}_3 \mathrm{COOH} \stackrel{\text { LNIl }_4}{\longrightarrow} \mathrm{A} \stackrel{\mathrm{NC}_4}{\longrightarrow} \mathrm{B} \stackrel{\text { *c.kI }}{\longrightarrow} \mathrm{C}$ the product $C$ is
1 acetaldehyde
2 acetylene
3 ethylene
4 acetylchloride
Explanation:
: In the reaction, the produce ' $C$ ' is ethylene.
230409
In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ which is effective factor?
1 Porosity of $\mathrm{Al}_2 \mathrm{O}_3$
2 Temperature
3 Concentration
4 Surface area of $\mathrm{Al}_2 \mathrm{O}_3$
Explanation:
: In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ temperature is the effective factor for dehydration of alcohol by $\mathrm{Al}_2 \mathrm{O}_3$. e.g-
BCECE-2012]
Hydrocarbons
230414
The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is
1 $\mathrm{CH}_3 \mathrm{CHCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_2 \mathrm{CHCH}_3$
3 $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2$
4 $\mathrm{CH}_3 \mathrm{CH}_2+\mathrm{CH}_2$
Explanation:
: The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is $\mathrm{CH}_3-\mathrm{CH}^{+}-\mathrm{CH}_3$.
BITSAT- 2009
Hydrocarbons
230416
The olefin which on ozonolysis gives $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$ is
1 2-butene
2 1-pentene
3 1-butene
4 2-pentene CGPET-2016]**
Explanation:
: 2-Pentene on ozonolysis to give a $\mathrm{CH}_3-\mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$. $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_3 \stackrel{\text { Ozonolysis }}{\longrightarrow}$
Hydrocarbons
230418
Propyne and propene can $b$ distinguished by
1 cone, $\mathrm{H}_2 \mathrm{SO}_4$
2 $\mathrm{Br}_2$ in $\mathrm{CCl}_4$
3 dil, $\mathrm{H}_2 \mathrm{SO}_4$
4 $\mathrm{AgNO}_3$ in ammonia
Explanation:
: Propene and propyne are distinguished by common chemicals tests namely ammonical silver nitrate or ammonical cuprous chloride. Ammonical silver nitrate is also called as Tollen's reagent. When propyne is mixed with ammonical silver nitrate a white precipitate is formed. Whereas there is no reaction when Tollen's reagent to propene. Propyne + ammonical silver nitrate $\rightarrow$ silver acetylide (white ppt) $+\mathrm{NH}_3+\mathrm{H}_2 \mathrm{O}$ Propene + ammonical silver nitrate $\rightarrow$ No reaction.
CG PET- 2012
Hydrocarbons
230425
In the reaction, $\mathrm{CH}_3 \mathrm{COOH} \stackrel{\text { LNIl }_4}{\longrightarrow} \mathrm{A} \stackrel{\mathrm{NC}_4}{\longrightarrow} \mathrm{B} \stackrel{\text { *c.kI }}{\longrightarrow} \mathrm{C}$ the product $C$ is
1 acetaldehyde
2 acetylene
3 ethylene
4 acetylchloride
Explanation:
: In the reaction, the produce ' $C$ ' is ethylene.
230409
In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ which is effective factor?
1 Porosity of $\mathrm{Al}_2 \mathrm{O}_3$
2 Temperature
3 Concentration
4 Surface area of $\mathrm{Al}_2 \mathrm{O}_3$
Explanation:
: In the preparation of alkene from alcohol using $\mathrm{Al}_2 \mathrm{O}_3$ temperature is the effective factor for dehydration of alcohol by $\mathrm{Al}_2 \mathrm{O}_3$. e.g-
BCECE-2012]
Hydrocarbons
230414
The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is
1 $\mathrm{CH}_3 \mathrm{CHCH}_2 \mathrm{Cl}$
2 $\mathrm{CH}_2 \mathrm{CHCH}_3$
3 $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2$
4 $\mathrm{CH}_3 \mathrm{CH}_2+\mathrm{CH}_2$
Explanation:
: The intermediate formed during the addition of $\mathrm{HCl}$ to propene in the presence of peroxide is $\mathrm{CH}_3-\mathrm{CH}^{+}-\mathrm{CH}_3$.
BITSAT- 2009
Hydrocarbons
230416
The olefin which on ozonolysis gives $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$ is
1 2-butene
2 1-pentene
3 1-butene
4 2-pentene CGPET-2016]**
Explanation:
: 2-Pentene on ozonolysis to give a $\mathrm{CH}_3-\mathrm{CH}_2 \mathrm{CHO}$ and $\mathrm{CH}_3 \mathrm{CHO}$. $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_3 \stackrel{\text { Ozonolysis }}{\longrightarrow}$
Hydrocarbons
230418
Propyne and propene can $b$ distinguished by
1 cone, $\mathrm{H}_2 \mathrm{SO}_4$
2 $\mathrm{Br}_2$ in $\mathrm{CCl}_4$
3 dil, $\mathrm{H}_2 \mathrm{SO}_4$
4 $\mathrm{AgNO}_3$ in ammonia
Explanation:
: Propene and propyne are distinguished by common chemicals tests namely ammonical silver nitrate or ammonical cuprous chloride. Ammonical silver nitrate is also called as Tollen's reagent. When propyne is mixed with ammonical silver nitrate a white precipitate is formed. Whereas there is no reaction when Tollen's reagent to propene. Propyne + ammonical silver nitrate $\rightarrow$ silver acetylide (white ppt) $+\mathrm{NH}_3+\mathrm{H}_2 \mathrm{O}$ Propene + ammonical silver nitrate $\rightarrow$ No reaction.
CG PET- 2012
Hydrocarbons
230425
In the reaction, $\mathrm{CH}_3 \mathrm{COOH} \stackrel{\text { LNIl }_4}{\longrightarrow} \mathrm{A} \stackrel{\mathrm{NC}_4}{\longrightarrow} \mathrm{B} \stackrel{\text { *c.kI }}{\longrightarrow} \mathrm{C}$ the product $C$ is
1 acetaldehyde
2 acetylene
3 ethylene
4 acetylchloride
Explanation:
: In the reaction, the produce ' $C$ ' is ethylene.
