When each of the aldopentoses are stepped up by one carbon atom by Kiliani reaction followed by oxidation with HNO3 , optically active or inactive dicarboxylic acids are produced. Which of the following is true?

Question

When each of the aldopentoses are stepped up by one carbon atom by Kiliani reaction followed by oxidation with HNO3 , optically active or inactive dicarboxylic acids are produced. Which of the following is true? (A)  D - ribose produces two optically active dicarboxylic acids (B)  D - arabinose produces two optically active dicarboxylic acids (C)  D - xylose produces one optically active and one optically inactive dicarboxylic acid (D)  D - lyxose produces two optically inactive dicarboxylic acid

Tardigrade Admin · Accepted Answer

Q. When each of the aldopentoses are stepped up by one carbon atom by Kiliani reaction followed by oxidation with $H N O_{3}$ , optically active or inactive dicarboxylic acids are produced. Which of the following is true?

$D$ - ribose produces two optically active dicarboxylic acids

$D$ - arabinose produces two optically active dicarboxylic acids

$D$ - xylose produces one optically active and one optically inactive dicarboxylic acid

$D$ - lyxose produces two optically inactive dicarboxylic acid

Q. When each of the aldopentoses are stepped up by one carbon atom by Kiliani reaction followed by oxidation with HNO3​ , optically active or inactive dicarboxylic acids are produced. Which of the following is true?

D - ribose produces two optically active dicarboxylic acids

D - arabinose produces two optically active dicarboxylic acids

D - xylose produces one optically active and one optically inactive dicarboxylic acid

D - lyxose produces two optically inactive dicarboxylic acid

Q. When each of the aldopentoses are stepped up by one carbon atom by Kiliani reaction followed by oxidation with $H N O_{3}$ , optically active or inactive dicarboxylic acids are produced. Which of the following is true?

$D$ - ribose produces two optically active dicarboxylic acids

$D$ - arabinose produces two optically active dicarboxylic acids

$D$ - xylose produces one optically active and one optically inactive dicarboxylic acid

$D$ - lyxose produces two optically inactive dicarboxylic acid