a Theory b/ Chemical equation du dugun
2.17. In an organic compound that is C=40.6%, H=6.6%, O=52.8%. If the
vapor density is 30, find the molecular formula.
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Answer:
NSWER
C
7
H
6
O→ Molecular formula
A→ Benzaldehyde (C
6
H
5
CHO)
2C
6
H
5
CHO
(A)
+NaOH⟶
benzylalcohol
C
6
H
5
CH
2
OH
(B)
+
Benzoicacid
C
6
H
5
COOH
(C)
B→ Benzyl chloride (C
6
H
5
CH
2
OH)
C→C
6
H
5
COOH (Benzoic acid)
(1) A+PCl
5
→D+E (2) C+PCl
5
→D+E
(i) A→ Benzaldehyde
B→ Benzyl alcohol
C→ Benzoic acid
D→ Benzoyl chloride
E→ Phosphoryl chloride
(ii) Cannizzaro Reaction :
Benzaldehyde
2C
6
H
5
CHO
+NaOH
BenzylAlcohol
C
6
H
5
CH
2
OH
+
Sodiumbenzoate
C
6
H
5
COON
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