|
Use the molecular orbital energy level diagram to show that
|
|
1
|
14425
|
December 21, 2016
|
|
Explain why HF is less viscous than $H _{ 2 }O$
|
|
0
|
2920
|
December 21, 2016
|
|
Out of H and ${ H }_{ 2 }$, the latter has higher first ionisation energy
|
|
1
|
1029
|
December 21, 2016
|
|
Apart from tetrahedral geometry
|
|
1
|
1409
|
December 21, 2016
|
|
Is there any change in the hybridisation
|
|
1
|
1294
|
December 21, 2016
|
|
What is the total number of sigma and pi bonds
|
|
1
|
868
|
December 21, 2016
|
|
Using VSEPR theory, draw the molecular structures
|
|
1
|
1075
|
December 21, 2016
|
|
Explain the shape of ${ I }_{ 3 }^{ - }$ ion
|
|
0
|
720
|
December 21, 2016
|
|
Discuss the shape of the following molecules using VSEPR model
|
|
1
|
6559
|
December 21, 2016
|
|
Explain the non-linear shape of $H _{ 2 }S$ and non-planar shape
|
|
1
|
882
|
December 21, 2016
|
|
Explain the important aspects of resonance
|
|
1
|
2262
|
December 21, 2016
|
|
Although geometries of ${ NH }_{ 3 }$ and $H _{ 2 }O$
|
|
1
|
854
|
December 21, 2016
|
|
Explain the shape of ${ BrF }_{ 5 }$
|
|
0
|
804
|
December 21, 2016
|
|
What do you understand by bond pairs and lone pairs of electrons?
|
|
1
|
4060
|
December 21, 2016
|
|
Which of the following has larger bond angle in each pair?
|
|
1
|
1093
|
December 21, 2016
|
|
Draw the Lewis structures for the following molecule and ions
|
|
1
|
839
|
December 21, 2016
|
|
Define octet rule
|
|
0
|
1507
|
December 21, 2016
|
|
Write the significance of dipole moment
|
|
0
|
14239
|
December 21, 2016
|
|
Define electronegativity
|
|
1
|
3153
|
December 21, 2016
|
|
Give reasons for the following :Ethyne molecule is linear
|
|
1
|
9307
|
December 21, 2016
|
|
Use Lewis symbols to show electron transfer between
|
|
1
|
3278
|
December 21, 2016
|
|
Give reason for the following questions below
|
|
1
|
1862
|
December 21, 2016
|
|
Which is more polar
|
|
1
|
752
|
December 21, 2016
|
|
Arrange the bonds in order of increasing ionic character in the molecules
|
|
1
|
1300
|
December 21, 2016
|
|
Arrange the following bonds in order of increasing ionic character
|
|
1
|
4552
|
December 21, 2016
|
|
Write the Lewis structure for the following atoms and ions
|
|
1
|
1285
|
December 21, 2016
|
|
Write Lewis dot symbols for atoms of the following elements
|
|
1
|
3041
|
December 21, 2016
|
|
Why do some elements exist as molecules and some as atoms?
|
|
0
|
1229
|
October 20, 2016
|
|
Look at the periodic table. Do you see any relation between the number of valence electrons and group numbers?
|
|
0
|
598
|
October 20, 2016
|
|
Write the Lewis structures of the given elements in the table
|
|
1
|
1212
|
October 20, 2016
|