The Fischer projection of D -erythrose is shown below. D -Erythrose...

The Fischer projection of $D$ -erythrose is shown below.

The Fischer projection of D -erythrose is shown below. D -Erythrose and its isomers are listed as P, Q, R, and S in

$D$ -Erythrose and its isomers are listed as $P, Q, R,$ and $S$ in Column I. Choose the correct relationship of $P, Q, R,$ and $S$ with $D$ -erythrose from Column II.

	Column - I		Column -II
P.		1.	Diastereomer
Q.		2.	Identical
R.		3.	Enantiomer
S.

Options

A $P \to 2, Q \to 3, R \to 2, S \to 2$
B $P \to 3, Q \to 1, R \to 1, S \to 2$
C $P \to 2, Q \to 1, R \to 1, S \to 3$
D $P \to 2, Q \to 3, R \to 3, S \to 1$

Correct answer

C. $P \to 2, Q \to 1, R \to 1, S \to 3$

Step-by-step solution

The Fischer projection of D -erythrose is shown below. D -Erythrose and its isomers are listed as P, Q, R, and S in

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