Thermal stability
Thermal stability of the hydrides of group 15 elements decreases as we go down the group. Therefore, NH 3 is most stable and BiH 3 is least stable. The stability of the hydrides of group 15 elements decreases in the order: NH 3 > PH 3 > AsH 3 > SbH 3 > B..
Relative Stability of Carbocation
>Thus, the order of stability is: CH 3 + < 1 o < 2 o < 3 o Other carbocations are benzyl carbocation, which is primary in nature but is highly stable because of resonance stabilization..
>Thus, the order of stability is: CH 3 + < 1 o < 2 o < 3 o Other carbocations are benzyl carbocation, which is primary in nature but is highly stable because of resonance stabilization..Relative stabilities of dienes
A conjugated diene is more stable as compared with non-conjugated dienes. The relative order of stability of dienes is:Conjugated diene > Isolated diene > Cumulated diene The evidence in favour of maximum stability of conjugated dienes can be obtained from the values of heats o..
A conjugated diene is more stable as compared with non-conjugated dienes. The relative order of stability of dienes is:Conjugated diene > Isolated diene > Cumulated diene The evidence in favour of maximum stability of conjugated dienes can be obtained from the values of heats o..Co-ordination Compounds Stability
Stability of Co-ordination Compounds in Solution - Although a complex ion does not dissociate generally, it may sometimes dissociate to a small extent. Example: The stability consta..
Stability of Co-ordination Compounds in Solution - Although a complex ion does not dissociate generally, it may sometimes dissociate to a small extent. Example: The stability consta..(b) Lower stability of the anilinium ion
The electron releasing groups (like -OCH 3 , -CH 3 , -NH 2 etc) enhance the availability of unshared electrons on nitrogen and increases the basic strength. Electrons withdrawing groups like (-NO 2 , -CN, -X etc) affect the stability of an aromatic ammonium cation and decreases the basic ..
The electron releasing groups (like -OCH 3 , -CH 3 , -NH 2 etc) enhance the availability of unshared electrons on nitrogen and increases the basic strength. Electrons withdrawing groups like (-NO 2 , -CN, -X etc) affect the stability of an aromatic ammonium cation and decreases the basic ..Nuclear Stability and Neutron/Proton Ratio
Nuclear Stability and Neutron/Proton Ratio - It has been found that the stability of nucleus depends upon its neutron to proton (n/p) ratio. A plot of N (the neutron number) against Z (atomic number or number of protons) show that for stable nuclides upto Z = 20, N = 20 i.e., th..
Nuclear Stability and Neutron/Proton Ratio - It has been found that the stability of nucleus depends upon its neutron to proton (n/p) ratio. A plot of N (the neutron number) against Z (atomic number or number of protons) show that for stable nuclides upto Z = 20, N = 20 i.e., th..To increase stability C.G. of the toy is lowered.
Solved Examples Example 1: A uniform meter rod of weight 100 N carries a weight of 40 N and 60 N suspended from 20 cm and 90 cm mark respectively. Where will you provide a knife edge to balance the meter scale? Suggested answer : If we assume the fulcrum to be at 50 cm mark, then the ..
Solved Examples Example 1: A uniform meter rod of weight 100 N carries a weight of 40 N and 60 N suspended from 20 cm and 90 cm mark respectively. Where will you provide a knife edge to balance the meter scale? Suggested answer : If we assume the fulcrum to be at 50 cm mark, then the ..Influence on the Reactions of other Functional Groups
The presence of nitro group facilitates nucleophilic substitution of otherwise unreactive aromatic halides by stabilizing the intermediate carbanio..
The presence of nitro group facilitates nucleophilic substitution of otherwise unreactive aromatic halides by stabilizing the intermediate carbanio..2. Ionization energies
The ionization energies of the elements of oxygen family are less than those of nitrogen family. As we move down the group from oxygen to polonium, the ionization energy decreases. Explanation: We expect that the ionization energy of oxygen should be more than that of N because of decrease in size..
The ionization energies of the elements of oxygen family are less than those of nitrogen family. As we move down the group from oxygen to polonium, the ionization energy decreases. Explanation: We expect that the ionization energy of oxygen should be more than that of N because of decrease in size..Reducing character
The reducing character of the hydrides of group 15 elements increases from NH 3 to BiH 3 . Thus, increasing order of reducing character is as follows: NH 3 < PH 3 < AsH 3 < SbH 3 < BiH 3 Explanation: The reducing character depends upon the stability of the hydri..
See what our Users say :
I really liked this tutoring. Helped me alot and gave me more ways to work a problem. awesome help and I even got the idea on these problems - kimi
This is my favorite tutoring ever. i might say that to others to, but this tutoring has thought me the most from any tutorings!! -Ashlyn
I uploaded a worksheet and I wanted to follow it with the tutor so I could learn the technical parts. It took just a few minutes to get the understanding of what I needed with the tutor. I even get through all the examples on the sheet in 25 minutes that we were focused on it.
I have experienced very innovative way of learning, I joined online tutoring at Tutorvista few months back when I was in grade 10, I scored really well in grade 10 and ny parents were really happy.
Looking for More Help!
