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# Number of chiral carbons In $\beta -D-(+)$ glucose is

$\begin {array} {1 1} (A)\;6 & \quad (B)\;4 \\ (C)\;3 & \quad (D)\;5 \end {array}$

1. A chiral carbon has four different groups attached. $\alpha$ -D-Glucose has no plane of symmetry, so all the carbon atoms are different.