Which compound would have the highest boiling point? I II Ill IV V What is the f

Question

Which compound would have the highest boiling point? I II Ill IV V What is the formal charge of the oxygen in the following structure? -1 -2 +1 +2 0 Which one is the weakest base? CH_2O CH_3CH_2 OH^- CH_3CO_2 CH_3NH^- Which of following molecules has n bond? alkane alkene alkyne ether ester a. II. Ill I,IV II, III, V IV,V all of them According to the Lewis' definition, an acid is a(n): proton donor electron pair donor hydroxide ion donor hydrogen ion donor e. electron pair acceptor Which pair of species are bases in the following reaction?

Explanation / Answer

F) b) ll. ) Alcoholes are more polar than rest of the compounds.Polar molecules are attracted by opposite charge effect.Greater the forces of attraction ( More polarity ) highest will be the boiling point.

G) c) +1 ) Oxygen has valency two. In given compound the valency of oxygen os three & therefore formal charge is +1

H) e ) CH3NH- ) Weak base isthe spacies which reacts with water in very small extent ie small least capacity to accept H+ ios.

I ) c) II, III & V . All single bonfs are sigma bonds.The double & triple bond contains 1 & two pi bons respectively.

These three compounds contains two, three & two double bons respectively.

J) e ) Electron pair accepter.

K) e ) MeOH & H2O. Base is the species which accepts the proton fron other species.

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