organic-chemistry

  1. What is the correct name of this compound

  2. How is a free radical on allylic position more stable than at benzylic position?

  3. Ring opening of aziridinylmethyl and oxiranylmethyl radicals

  4. IUPAC nomenclature of 1,2,3,4-tetramethylcyclobutane
  5. Why does alkyl group withdraw electrons in Grignard reagent?

  6. How should a triple bond be depicted in skeletal structures?
  7. Most likely to react with?

  8. How is the concentration of ethanol detected in a fermentation process
  9. When sodium hypochlorite is formed from chlorine and sodium hydroxide and made into a bleach, how does it release the hypochlorite ion?
  10. Lanthanides react with mineral oil?
  11. Is selenocysteine C3H6NO2Se or C3H7NO2Se?
  12. preparation of alkyl halides from alcohols
  13. Why is triplet carbene sp2-hybridised?
  14. Reaction between CHCl3 and Br2
  15. Singlet or triplet carbene

  16. Does the yield of extraction of trimyristin depend on the color of grounded nutmeg?
  17. Does dinitratomethane exist?
  18. Reaction between chlorobenzene and methyl chloride

  19. Molecular bonds priority

  20. Reaction of Diols with HX hydrohalic acids, Competing SN2 Reactions

  21. Chemical reaction in photosynthesis
  22. What is reaction between isopropyl alcohol and acetone?

  23. Organic Chemistry : Alkly Groups , is CycloAlkyl a subgroup

  24. do organic- compounds can be synthesized from inorganic compounds?illustrare with example
  25. Which functional group is more polar in a drug: Primary amide or a carboxylic acid?
  26. Is (2R,3S)-butane-2,3-diol chiral?

  27. When does esterification dominate?
  28. How do inter & intra molecular hydrogen bonding effect acidity of a compound?

  29. Charge separation and stability in resonating structures
  30. Resonance in Organic Compound
  31. All about hydrogen peroxide in details
  32. Clemmensen's reduction with a beta keto acid

  33. Loss of aromaticity vs low entropy of activation
  34. Clemmensen's reduction with ring expansion

  35. How many valence are in each molecule?

  36. Why does benzene undergo substitution reaction?

  37. Steric Inhibition of resonance vs. Steric inhibition of protonation

  38. Does this compound show geometrical isomerism?
  39. Stability of extended enolates
  40. What is difference between aluminium mercury alloy and gallium aluminium alloy?

  41. Why does an electron-donating group reduce the polarity of the O-H bond?

  42. Why does the carbocation in this scheme react under elimination conditions rather than being attacked by water?
  43. Why secondary alkyl groups are more prone to shifting than primary?

  44. How does epoxide ring opening occur using DIBAL-H?

  45. Insertion vs epoxide formation

  46. Is the t-butyl carbocation more stable than the benzyl carbocation?

  47. Polarity Of Bonds And Decrease In Them

  48. Molarity problems

  49. Mass balance on a system that has a recycle stream

  50. Interconversion of tropane - mechanism

  51. Determine whether the tank will overflow with mass flowrate
  52. Mass balance of a chemical process plant with a recycle

  53. Oxidation of lactols to lactones?
  54. Can carbanion rearrange to attain more stability?

  55. H-NMR spectroscopy of [18]annulene
  56. Difference between intermediates and transition states
  57. Is there an specific chemical reaction between capsaicin and casein? Is there an stoichiometric relationship between both?
  58. Axial or planar chirality in spiro[3.3]hepta-1,5-diene
  59. What is the difference between radical initiator and radical inhibitor?
  60. How many different alkyl chlorides result from C4H10 and chlorine?

  61. Do enolates get protonated at the carbon or oxygen atom?

  62. Why are some materials more flammable than others?
  63. Why is ethanol used in catalytic reduction of nitro group to an amine?
  64. Reimer–Tiemann-like reaction of catechol with diiodomethane

  65. Why cyclic ketones are more reactive than the open chained ones?

  66. By how many pKa units will the pKa value of a ketone be minimized by addition of a Lewis acid
  67. Lemieux-Johnson oxidation on cycles

  68. Does a cationic 1,3-triphosphinane react with a methyl cation?

  69. Neighbouring group participation with and without retention of configuration in nucleophilic substitution of 2,6-dichloro-9-thiabicyclo[3.3.1]nonane

  70. Stability of canonical forms

  71. Adsorption/Desorption Rates/Potential of PFASs (esp. PFOA, PFOS & PFHxs)
  72. Why is the endo product the major product in a Diels-Alder reaction?
  73. Why lactic acid optical active?

  74. What are the basic conditions for a carbocation to rearrange into a stable carbocation?

  75. What are the condensed formulae for 2-methylhexane and 3-ethyl-2-methylhexane?

  76. How do Gilman reagents open epoxides?
  77. What is the IUPAC name of fullerene like molecules?

  78. How can I quickly render paper unusable?

  79. Effect of Zn dust reduction of phenolic -OH group on other groups

  80. How many total absorptions would appear on proton -NMR spectrum for this molecule?
  81. Deprotection (debenzoylation) of glucose (sacharide) using NaOMe leads to hydrolysis glucose
  82. A level Organic Chemistry Oxidising Alcohols help
  83. Acidity of ethers vs alkanes
  84. Hydroboration on Limonene
  85. 2,4‐Dinitrobenzene reaction mechanism

  86. provide reaction mechanism for this reaction

  87. How to assign priorities around the asymmetric carbon with its substituents having multiple bonds?

  88. An acid may be defined as
  89. Are molecules chiral if a rotation leads back to the same compound?

  90. How long does it take to replicate Friedrich Wohler's synthesis of urea?

  91. Chiral Centers and Stereochemistry

  92. Why does LiAlH4 reduce the double bond of cinnamaldehyde, whereas NaBH4 does not?

  93. Why don't alkynes undergo preferential anti bromination to the degree that alkenes do?
  94. Why does NaBH4 reduce double bonds conjugated to carbonyl groups, while LiAlH4 does not?

  95. Why is 1-bromotriptycene inert to nucleophilic substitution?
  96. Anomalous Friedel–Crafts acylation with pivaloyl chloride

  97. Friedel–Crafts alkylation of benzene with propyl chloride

  98. Nonsubstituted Cycloalkene HBr Reaction

  99. How to explain the selectivity between methanol and methanethiol in an SN1 reaction with an halogenated hydrocarbon?
  100. Why doesn’t aniline undergo Friedel-Crafts alkylation?