ORGANIC FUNDAMENTALS

UNIT TEST - ORGANIC FUNDAMENTALS Q1. Which of the following acids have the smallest dissociation constant? CH3CHFCOOH FCH2CH2COOH BrCH2CH2COOH CH3CHBrCOOH Q2. The most unlikely representation of resonance structures of p-nitrophenoxide ion is i. ii. iii. iv. Q3. The compound which gives the most stable carbonium ion on dehydration is i. ii. iii. iv. Q4. InCH3CH2OH, the bond that undergoes heterolytic cleavage more readily is: i. ii. iii. iv. Q5. Hydrogen bonding is maximum in Ethanol Diethyl ether Ethyl chloride Triethylamine Q6. Of the following compounds, which will have zero dipole moment? 1,1-dichloroethylene Cis-1,2-dichloroethylene trans-1,2-dichloroethylene None of the above Q7. The enolic form of acetone contains 9σ, 1π, 2 lone pairs 8σ, 2π, 2 lone pairs 10σ, 1π, 1 lone pairs 9σ, 2π, 1 lone pairs Q8. The species in which the central atom uses sp2 hybrid orbitals in its bonding is PH3 NH3 CH3+ SbH3 Q9. Which of the following compound will exhibit geometrical isomerism? 1-phenyl-2-butene 3-phenyl-1-butene 2-phenyl-1-butene 1,1-diphenyl-2-propene Q10. State true or false m-chlorobromobenzene is an isomer of m-bromochlorobenzene. (T/F) Q11. Write the structural formulae of all the possible isomers of C2H2Cl2 and indicate which of them is non polar. Q12. What effect should the following resonance of vinyl chloride have on its dipole moment? To get correct answers and feed back Solve it and send answer sheet to mshahid96@gmail.com