Questions asked by rafael n

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• Why do C-C bond break earlier than C-F in the pyrolysis of c2f6?
  
• Why #"Li"_2^+# is more stable than #"Li"_2# ?
  
• Why teritary amine can't show chirality?
  
• How it is aromatic ?
  
• What does this structure mean ? what are use of charges ? please explain
  
• What is complementary strand of DNA of the following single strand DNA sequence 5'A-T-C-A-T-G-C-3' ? How to find it? Explain in detail.
  
• Is dyneema fiber conductor of electricity?
  
• What is gun benzoin? How can it mask smell of ethyl alcohol?
  
• What is #sum_(R=1)^(N) (1/3)^(R-1)#? provide steps please.
  
• If a1=a2=a3 then can i say a1=a2=a3=1 ?
  
• Let a, b, c be three numbers in G. P . And we take theirs log (eg. Log a, Log b,Log c) is it always true that their log will be in A. P?
  
• Is there any easy to solve this sigma question Find the sum of 1^8 +2^8 +3^8 +4^8+......to n terms? I tried by taking (n+1)^9 -(n) ^9 but that method is too long. Please anybody suggest easier and short method.
  
• Please explain meaning of exp function how to use it .E.G in this (y = exp((sin^2x + sin^4 x + sin^6 x +........infinity)*ln2) ) part. ?
  
• Please explain this method to solve series?
  
• Find general term of this sequence ? 1,2,2,4,4,4,4,8,8,8,8,8,8,8,8,......