|
Use the molecular orbital energy level diagram to show that
|
|
1
|
14223
|
December 21, 2016
|
|
Explain why HF is less viscous than $H _{ 2 }O$
|
|
0
|
2862
|
December 21, 2016
|
|
Out of H and ${ H }_{ 2 }$, the latter has higher first ionisation energy
|
|
1
|
978
|
December 21, 2016
|
|
Apart from tetrahedral geometry
|
|
1
|
1338
|
December 21, 2016
|
|
Is there any change in the hybridisation
|
|
1
|
1235
|
December 21, 2016
|
|
What is the total number of sigma and pi bonds
|
|
1
|
819
|
December 21, 2016
|
|
Using VSEPR theory, draw the molecular structures
|
|
1
|
1031
|
December 21, 2016
|
|
Explain the shape of ${ I }_{ 3 }^{ - }$ ion
|
|
0
|
681
|
December 21, 2016
|
|
Discuss the shape of the following molecules using VSEPR model
|
|
1
|
6485
|
December 21, 2016
|
|
Explain the non-linear shape of $H _{ 2 }S$ and non-planar shape
|
|
1
|
825
|
December 21, 2016
|
|
Explain the important aspects of resonance
|
|
1
|
2186
|
December 21, 2016
|
|
Although geometries of ${ NH }_{ 3 }$ and $H _{ 2 }O$
|
|
1
|
800
|
December 21, 2016
|
|
Explain the shape of ${ BrF }_{ 5 }$
|
|
0
|
752
|
December 21, 2016
|
|
What do you understand by bond pairs and lone pairs of electrons?
|
|
1
|
3861
|
December 21, 2016
|
|
Which of the following has larger bond angle in each pair?
|
|
1
|
1050
|
December 21, 2016
|
|
Draw the Lewis structures for the following molecule and ions
|
|
1
|
791
|
December 21, 2016
|
|
Define octet rule
|
|
0
|
1459
|
December 21, 2016
|
|
Write the significance of dipole moment
|
|
0
|
14178
|
December 21, 2016
|
|
Define electronegativity
|
|
1
|
3110
|
December 21, 2016
|
|
Give reasons for the following :Ethyne molecule is linear
|
|
1
|
9156
|
December 21, 2016
|
|
Use Lewis symbols to show electron transfer between
|
|
1
|
3206
|
December 21, 2016
|
|
Give reason for the following questions below
|
|
1
|
1802
|
December 21, 2016
|
|
Which is more polar
|
|
1
|
714
|
December 21, 2016
|
|
Arrange the bonds in order of increasing ionic character in the molecules
|
|
1
|
1259
|
December 21, 2016
|
|
Arrange the following bonds in order of increasing ionic character
|
|
1
|
4496
|
December 21, 2016
|
|
Write the Lewis structure for the following atoms and ions
|
|
1
|
1207
|
December 21, 2016
|
|
Write Lewis dot symbols for atoms of the following elements
|
|
1
|
2927
|
December 21, 2016
|
|
Why do some elements exist as molecules and some as atoms?
|
|
0
|
1197
|
October 20, 2016
|
|
Look at the periodic table. Do you see any relation between the number of valence electrons and group numbers?
|
|
0
|
567
|
October 20, 2016
|
|
Write the Lewis structures of the given elements in the table
|
|
1
|
1168
|
October 20, 2016
|