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Benzene ring contains alternate single and double bonds, yet all the C-C bonds are of equal length. Why?
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0
|
2181
|
August 11, 2016
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Write the Lewis structure of the Nitrite ion
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0
|
704
|
August 11, 2016
|
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Draw Lewis dot structure for C${{O}_{3}}^{2-}}$
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0
|
575
|
August 11, 2016
|
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Explain important aspects of resonance with reference to the C${{O}_{3}}^{2-}$ ion
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0
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1110
|
August 11, 2016
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${{H}_{3}}$P${{O}_{3}}$ can be represented by structures 1 and 2 shown below
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1
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510
|
August 11, 2016
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Discuss the shapes of P${{h}_{3}}$ and As${{F}_{5}}$ using VSEPR theory
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0
|
561
|
August 11, 2016
|
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Account for the following :
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1
|
885
|
August 11, 2016
|
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Which bonds are called 'directional' and 'non- directional' bonds?
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0
|
910
|
August 11, 2016
|
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Using the VSEPR theory identity the type of hybridization and draw the structure of O${{F}_{2}}$. What are oxidation states of O and F?
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0
|
1407
|
August 11, 2016
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What do you understand by bond pair and lone pairs of electrons? Illustrate by giving one example of each type
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0
|
5911
|
August 11, 2016
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Account for the following : The experimentally determined N-F bond length in N${{F}_{3}}$ is greater than the sum of the single covalent radii of N and F
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0
|
1206
|
August 11, 2016
|
|
B$C{{l}_{3}}$ is planar but anhydrous Al$C{{l}_{3}}$ is tetrahedral. Explain
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0
|
814
|
August 11, 2016
|
|
Explain giving reasons whether B${{H}_{4}}$ and ${{H}_{3}}$${{O}^{+}}$ will have same/different geometry?
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0
|
430
|
August 11, 2016
|
|
Explain the important aspects of resonance with reference to the C${{O}_{3}}^{2-}$ ion
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0
|
2904
|
August 11, 2016
|
|
Define octet rule. Write its significance and limitations
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0
|
10891
|
August 11, 2016
|
|
Compare the properties of Ionic and Covalent compounds
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0
|
2460
|
August 11, 2016
|
|
Deduce the structure of :
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|
1
|
490
|
August 11, 2016
|
|
Explain why Be${{H}_{2}}$ molecule has a zero dipole moment although the Be-H bonds are polar
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0
|
715
|
August 11, 2016
|
|
Write the significance/applications of dipole moment
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0
|
3557
|
August 11, 2016
|
|
Write the favourable factors for the formation of ionic bond?
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0
|
534
|
August 11, 2016
|
|
How bond energy varies from ${{N}_{2}}^{+}$ to ${{N}_{2}}^{-}$ and why?
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|
1
|
548
|
August 11, 2016
|
|
In both water and diethyl ether, the central atom viz. O-atom has same hybridization. The why do they have different bond angles ? Which one has greater bond angle?
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0
|
6087
|
August 11, 2016
|
|
Draw the Lewis dot diagram of nitric acid, sulphuric acid and phosphoric acid
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0
|
6875
|
August 11, 2016
|
|
What is the effect of the following ionisation process on the bond order of ${{O}_{2}}$
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|
0
|
620
|
August 11, 2016
|
|
Calculate formal charge on each oxygen atom of ${{O}_{3}}$ molecule and write its structure with formal charges
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0
|
5156
|
August 11, 2016
|
|
Draw the Lewis dot structure of C${{O}_{3}}^{2-}$ ion
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|
0
|
644
|
August 11, 2016
|
|
Why HCl is polar whereas $C{{l}_{2}}$ molecule is non-polar?
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|
0
|
479
|
August 11, 2016
|
|
Explain why bond angle of N${{H}_{3}}$ is greater than that of N${{F}_{3}}$while bond angle of PH, is less than that of P${{F}_{3}}$
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0
|
319
|
August 11, 2016
|
|
Although geometries of NH3 and H20 molecules are distorted tetrahedral, bond angles in water is less than that of NH3 ? Discuss?
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0
|
3320
|
August 11, 2016
|
|
Why covalent bonds are called directional bonds whereas ionic bonds are called non-directional?
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|
0
|
9174
|
August 11, 2016
|