Question

H HA How many peaks would be expected for A in a H NMR spectrum for the above compound? 3 8 4 6
rio NaOH + H2O What is the major product of the above reaction?
OCH, OCH 00 С Rank the above compounds in order of decreasing reactivity in electrophilic aromatic substitution reactions C>A
1) CH3CH2MgBr (xs) 2) H30* What is the major product of the reaction? OH HO OH HO No reaction
ОН PCC НО ОН What is the major product of the reaction? О ОН ОН ОН ОН н 0 но ОН О ОН
0 0
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Answer #1

1) option c (4)

0.86 5,07 H 12.3B 0.88 H 5.03 5.70 it NA PPM

2)

Oby -oh Bare ople 0 H -H₂0 Ans. Option c

Reaction is aldol condensation

3) electrophilic aromatic substitution ability of the ring increase when there is an electron donating group present in the ring. When electron withdrawing group present, the ability decrease.
So the order is as follows.... C>E>A>B>D.
Hence the answer is option b

4)

200 Et Mg By 타 (3) 0 0H Ans. Option B Į Eting by 해 o 타 애

Grignard reaction of lactone.

5)

о он рес С. ои 운 он Ая: Гори * D

PCC oxidation. Primary alcohol will be oxidised to aldehyde, secondary alcohol will be oxidised to ketone, tertiary alcohol will be unaffected

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