Insoluble compound at step Z is formed by compound.
A
p-Hydroxybenzaldehyde
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B
Salicylaldehyde
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C
α-Napthylamine
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D
Napthalene
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Solution
The correct option is D Napthalene Napthalene does not form salt with HCl,NaHCO3 and NaOH. At step Z compound salicylaldehyde and p-hydroxybenzaldehyde are soluble Option D is correct.