The compound that neither forms semicarbazone nor oxime is

Which of the following compounds neither forms semicarbazone oxime ?

Which of the following forms stable semicarbazone

Which of the following compounds neither gives iodoform test nor responds to Tollen's test?

Why does compound (A) not form an oxime ?

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An organic compound neither reacts with neutral ferric chloride solution nor with Fehling solution. It however, reacts with Grignard reagent and gives positive iodoform test. The compound is