231356
Give the increasing order of their acidic strength of the following : $\mathrm{CH}_{3} \mathrm{COOH}, \mathrm{H}_{2} \mathrm{O}$ and $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
Dehydration of alcohol means, removal of water molecule in alcohol. Dehydration of alcohol is a elimination reaction. During dehydration carbocation intermediate is formed which is more stable Hence, the order of dehydration is : $3^{\circ}>2^{\circ}>1^{\circ}>\mathrm{CH}_{3} \mathrm{OH}$
BCECE-2017
GENERAL ORGANIC CHEMISTRY
231359
Arrange the following compounds in the order of decreasing acidity.
1 ii $>$ iv $>$ i $>$ iii
2 i $>$ ii $>$ iii $>$ iv
3 iii $>$ i $>$ ii $>$ iv
4 iv $>$ iii $>$ i $>$ ii
Explanation:
As we know that $-\mathrm{I}$ effect decrease the acidity and $+\mathrm{I}$ effect increase the acidity and higher the value of electro negativity higher is the $-\mathrm{I}$ effect. Hence, the decreasing order of acidity - III $>$ I $>$ II $>$ IV
BCECE-2017
GENERAL ORGANIC CHEMISTRY
231361
Which of the following compounds are meso form?
1 Only I
2 Both I and III
3 Both I and II
4 Both II and III
Explanation:
A Meso compound is a non-optically active compound. Which is mirror image of each other. Hence I and II are meso compound, because its mirror image is superimpose.
231356
Give the increasing order of their acidic strength of the following : $\mathrm{CH}_{3} \mathrm{COOH}, \mathrm{H}_{2} \mathrm{O}$ and $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
Dehydration of alcohol means, removal of water molecule in alcohol. Dehydration of alcohol is a elimination reaction. During dehydration carbocation intermediate is formed which is more stable Hence, the order of dehydration is : $3^{\circ}>2^{\circ}>1^{\circ}>\mathrm{CH}_{3} \mathrm{OH}$
BCECE-2017
GENERAL ORGANIC CHEMISTRY
231359
Arrange the following compounds in the order of decreasing acidity.
1 ii $>$ iv $>$ i $>$ iii
2 i $>$ ii $>$ iii $>$ iv
3 iii $>$ i $>$ ii $>$ iv
4 iv $>$ iii $>$ i $>$ ii
Explanation:
As we know that $-\mathrm{I}$ effect decrease the acidity and $+\mathrm{I}$ effect increase the acidity and higher the value of electro negativity higher is the $-\mathrm{I}$ effect. Hence, the decreasing order of acidity - III $>$ I $>$ II $>$ IV
BCECE-2017
GENERAL ORGANIC CHEMISTRY
231361
Which of the following compounds are meso form?
1 Only I
2 Both I and III
3 Both I and II
4 Both II and III
Explanation:
A Meso compound is a non-optically active compound. Which is mirror image of each other. Hence I and II are meso compound, because its mirror image is superimpose.
231356
Give the increasing order of their acidic strength of the following : $\mathrm{CH}_{3} \mathrm{COOH}, \mathrm{H}_{2} \mathrm{O}$ and $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
Dehydration of alcohol means, removal of water molecule in alcohol. Dehydration of alcohol is a elimination reaction. During dehydration carbocation intermediate is formed which is more stable Hence, the order of dehydration is : $3^{\circ}>2^{\circ}>1^{\circ}>\mathrm{CH}_{3} \mathrm{OH}$
BCECE-2017
GENERAL ORGANIC CHEMISTRY
231359
Arrange the following compounds in the order of decreasing acidity.
1 ii $>$ iv $>$ i $>$ iii
2 i $>$ ii $>$ iii $>$ iv
3 iii $>$ i $>$ ii $>$ iv
4 iv $>$ iii $>$ i $>$ ii
Explanation:
As we know that $-\mathrm{I}$ effect decrease the acidity and $+\mathrm{I}$ effect increase the acidity and higher the value of electro negativity higher is the $-\mathrm{I}$ effect. Hence, the decreasing order of acidity - III $>$ I $>$ II $>$ IV
BCECE-2017
GENERAL ORGANIC CHEMISTRY
231361
Which of the following compounds are meso form?
1 Only I
2 Both I and III
3 Both I and II
4 Both II and III
Explanation:
A Meso compound is a non-optically active compound. Which is mirror image of each other. Hence I and II are meso compound, because its mirror image is superimpose.
231356
Give the increasing order of their acidic strength of the following : $\mathrm{CH}_{3} \mathrm{COOH}, \mathrm{H}_{2} \mathrm{O}$ and $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
Dehydration of alcohol means, removal of water molecule in alcohol. Dehydration of alcohol is a elimination reaction. During dehydration carbocation intermediate is formed which is more stable Hence, the order of dehydration is : $3^{\circ}>2^{\circ}>1^{\circ}>\mathrm{CH}_{3} \mathrm{OH}$
BCECE-2017
GENERAL ORGANIC CHEMISTRY
231359
Arrange the following compounds in the order of decreasing acidity.
1 ii $>$ iv $>$ i $>$ iii
2 i $>$ ii $>$ iii $>$ iv
3 iii $>$ i $>$ ii $>$ iv
4 iv $>$ iii $>$ i $>$ ii
Explanation:
As we know that $-\mathrm{I}$ effect decrease the acidity and $+\mathrm{I}$ effect increase the acidity and higher the value of electro negativity higher is the $-\mathrm{I}$ effect. Hence, the decreasing order of acidity - III $>$ I $>$ II $>$ IV
BCECE-2017
GENERAL ORGANIC CHEMISTRY
231361
Which of the following compounds are meso form?
1 Only I
2 Both I and III
3 Both I and II
4 Both II and III
Explanation:
A Meso compound is a non-optically active compound. Which is mirror image of each other. Hence I and II are meso compound, because its mirror image is superimpose.
