Which of the following compounds gives only a | vedclass

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(B) Formaldehyde $(HCHO)$ is the simplest aldehyde. When it reacts with a Grignard reagent $(RMgX)$,it forms an addition product which,upon acidic hyd

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$HCHO$

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(B) Formaldehyde $(HCHO)$ is the simplest aldehyde. When it reacts with a Grignard reagent $(RMgX)$,it forms an addition product which,upon acidic hydrolysis,yields a primary alcohol $(RCH_2OH)$.Other aldehydes $(R'CHO)$ react with Grignard reagents to form secondary alcohols $(R'CH(OH)R)$.Ketones $(R'COR'')$ react with Grignard reagents to form tertiary alcohols $(R'R''C(OH)R)$.

Which of the following compounds gives only a primary alcohol on reaction with a Grignard reagent $(RMgX)$?

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