|
Use the molecular orbital energy level diagram to show that
|
|
1
|
14136
|
December 21, 2016
|
|
Explain why HF is less viscous than $H _{ 2 }O$
|
|
0
|
2842
|
December 21, 2016
|
|
Out of H and ${ H }_{ 2 }$, the latter has higher first ionisation energy
|
|
1
|
965
|
December 21, 2016
|
|
Apart from tetrahedral geometry
|
|
1
|
1310
|
December 21, 2016
|
|
Is there any change in the hybridisation
|
|
1
|
1208
|
December 21, 2016
|
|
What is the total number of sigma and pi bonds
|
|
1
|
802
|
December 21, 2016
|
|
Using VSEPR theory, draw the molecular structures
|
|
1
|
1013
|
December 21, 2016
|
|
Explain the shape of ${ I }_{ 3 }^{ - }$ ion
|
|
0
|
672
|
December 21, 2016
|
|
Discuss the shape of the following molecules using VSEPR model
|
|
1
|
6457
|
December 21, 2016
|
|
Explain the non-linear shape of $H _{ 2 }S$ and non-planar shape
|
|
1
|
814
|
December 21, 2016
|
|
Explain the important aspects of resonance
|
|
1
|
2159
|
December 21, 2016
|
|
Although geometries of ${ NH }_{ 3 }$ and $H _{ 2 }O$
|
|
1
|
782
|
December 21, 2016
|
|
Explain the shape of ${ BrF }_{ 5 }$
|
|
0
|
739
|
December 21, 2016
|
|
What do you understand by bond pairs and lone pairs of electrons?
|
|
1
|
3774
|
December 21, 2016
|
|
Which of the following has larger bond angle in each pair?
|
|
1
|
1039
|
December 21, 2016
|
|
Draw the Lewis structures for the following molecule and ions
|
|
1
|
777
|
December 21, 2016
|
|
Define octet rule
|
|
0
|
1440
|
December 21, 2016
|
|
Write the significance of dipole moment
|
|
0
|
14160
|
December 21, 2016
|
|
Define electronegativity
|
|
1
|
3089
|
December 21, 2016
|
|
Give reasons for the following :Ethyne molecule is linear
|
|
1
|
9128
|
December 21, 2016
|
|
Use Lewis symbols to show electron transfer between
|
|
1
|
3176
|
December 21, 2016
|
|
Give reason for the following questions below
|
|
1
|
1782
|
December 21, 2016
|
|
Which is more polar
|
|
1
|
703
|
December 21, 2016
|
|
Arrange the bonds in order of increasing ionic character in the molecules
|
|
1
|
1246
|
December 21, 2016
|
|
Arrange the following bonds in order of increasing ionic character
|
|
1
|
4487
|
December 21, 2016
|
|
Write the Lewis structure for the following atoms and ions
|
|
1
|
1182
|
December 21, 2016
|
|
Write Lewis dot symbols for atoms of the following elements
|
|
1
|
2878
|
December 21, 2016
|
|
Why do some elements exist as molecules and some as atoms?
|
|
0
|
1175
|
October 20, 2016
|
|
Look at the periodic table. Do you see any relation between the number of valence electrons and group numbers?
|
|
0
|
554
|
October 20, 2016
|
|
Write the Lewis structures of the given elements in the table
|
|
1
|
1145
|
October 20, 2016
|