Physical World
Which of the following does not possess alpha hydrogen?
Which statement is correct?
Maleic acid is cis-bytenedioic acid whereas fumaric acid is trans-butenedioic acid.
Maleic acid is able to lose $$H^+$$ ion and it results in the formation of intra hydrogen bond. Whereas fumaric acid being a trans isomer has strong interaction with both the oxygen atoms of each carboxylic group.
Hence, fumaric acid is unable to give hydrogen ions as compared to maleic acid.
That is why, maleic acid is stronger than fumaric acid.
Hence, option B is correct.
Which of the following does not possess alpha hydrogen?
Draw the structure of the hexanal molecule.
Which of the following structures is not correctly matched?
Write the structural formula for each of the following. Three aldehydes with the formula $$C_{5}H_{10}O$$.
Which of the following statements are correct about the following reaction ?
A compound has molecular formula $$C_6H_{12}O.$$ It does not reduce Tollens or Fehling's reagent, but gives a crystalline derivative with 2,4-dinitro-phenyl hydrazine. With alkali and $$I_2,$$ it gives yellow solid with a medicinal odour. Clemmensen reduction converts it to 2-methylpentane. The structural formula of the compound is most likely to be:
Butanal is an example of