00. Electronic effect and Its Applications
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GENERAL ORGANIC CHEMISTRY

231617 Arrange $\mathrm{Na}^{+}, \mathrm{Mg}^{2+}$ and $\mathrm{Al}^{3+}$ in increasing order of energy of hydration.

1 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{Al}^{3+}$
2 $\mathrm{Al}^{3+}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Al}^{3+}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
4 $\mathrm{Mg}^{2+}<\mathrm{Al}^{3+}<\mathrm{Na}^{+}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

231618 The boiling point of ethanol is higher as compared to the boiling point of diethyl ether though both have the same molecular formula. This is due to

1 Resonance
2 R-group
3 H-bonding
4 Covalent bonding
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

231621 Consider the following carbocations
I. \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}^{+}\)
II. \(\mathbf{C H}_3 \mathbf{C H}_2^{+}\)
III. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2^{+}\)
IV. \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}^{+}\)
The correct sequence for the stability of these is

1 II $<$ I $<$ IV $<$ III
2 II $<$ III $<$ I $<$ IV
3 III $<$ I $<$ II $<$ IV
4 IV $<$ III $<$ I $<$ II
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

231624 How many $\pi$ bonds are present in naphthalene?

1 4
2 5
3 6
4 7
UPTU/ UPSEE-2008
NEET DIGITAL LIBRARY
GENERAL ORGANIC CHEMISTRY

231617 Arrange $\mathrm{Na}^{+}, \mathrm{Mg}^{2+}$ and $\mathrm{Al}^{3+}$ in increasing order of energy of hydration.

1 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{Al}^{3+}$
2 $\mathrm{Al}^{3+}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Al}^{3+}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
4 $\mathrm{Mg}^{2+}<\mathrm{Al}^{3+}<\mathrm{Na}^{+}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

231618 The boiling point of ethanol is higher as compared to the boiling point of diethyl ether though both have the same molecular formula. This is due to

1 Resonance
2 R-group
3 H-bonding
4 Covalent bonding
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

231621 Consider the following carbocations
I. \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}^{+}\)
II. \(\mathbf{C H}_3 \mathbf{C H}_2^{+}\)
III. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2^{+}\)
IV. \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}^{+}\)
The correct sequence for the stability of these is

1 II $<$ I $<$ IV $<$ III
2 II $<$ III $<$ I $<$ IV
3 III $<$ I $<$ II $<$ IV
4 IV $<$ III $<$ I $<$ II
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

231624 How many $\pi$ bonds are present in naphthalene?

1 4
2 5
3 6
4 7
UPTU/ UPSEE-2008
Join With Us for More Updates
GENERAL ORGANIC CHEMISTRY

231617 Arrange $\mathrm{Na}^{+}, \mathrm{Mg}^{2+}$ and $\mathrm{Al}^{3+}$ in increasing order of energy of hydration.

1 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{Al}^{3+}$
2 $\mathrm{Al}^{3+}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Al}^{3+}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
4 $\mathrm{Mg}^{2+}<\mathrm{Al}^{3+}<\mathrm{Na}^{+}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

231618 The boiling point of ethanol is higher as compared to the boiling point of diethyl ether though both have the same molecular formula. This is due to

1 Resonance
2 R-group
3 H-bonding
4 Covalent bonding
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

231621 Consider the following carbocations
I. \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}^{+}\)
II. \(\mathbf{C H}_3 \mathbf{C H}_2^{+}\)
III. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2^{+}\)
IV. \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}^{+}\)
The correct sequence for the stability of these is

1 II $<$ I $<$ IV $<$ III
2 II $<$ III $<$ I $<$ IV
3 III $<$ I $<$ II $<$ IV
4 IV $<$ III $<$ I $<$ II
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

231624 How many $\pi$ bonds are present in naphthalene?

1 4
2 5
3 6
4 7
UPTU/ UPSEE-2008
For More Updates join with Us
GENERAL ORGANIC CHEMISTRY

231617 Arrange $\mathrm{Na}^{+}, \mathrm{Mg}^{2+}$ and $\mathrm{Al}^{3+}$ in increasing order of energy of hydration.

1 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{Al}^{3+}$
2 $\mathrm{Al}^{3+}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Al}^{3+}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
4 $\mathrm{Mg}^{2+}<\mathrm{Al}^{3+}<\mathrm{Na}^{+}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

231618 The boiling point of ethanol is higher as compared to the boiling point of diethyl ether though both have the same molecular formula. This is due to

1 Resonance
2 R-group
3 H-bonding
4 Covalent bonding
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

231621 Consider the following carbocations
I. \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}^{+}\)
II. \(\mathbf{C H}_3 \mathbf{C H}_2^{+}\)
III. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2^{+}\)
IV. \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}^{+}\)
The correct sequence for the stability of these is

1 II $<$ I $<$ IV $<$ III
2 II $<$ III $<$ I $<$ IV
3 III $<$ I $<$ II $<$ IV
4 IV $<$ III $<$ I $<$ II
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

231624 How many $\pi$ bonds are present in naphthalene?

1 4
2 5
3 6
4 7
UPTU/ UPSEE-2008
NEET DIGITAL LIBRARY