R/S assignment from drawn structures

14 questions on R/S assignment from drawn structures from the Stereoisomerism chapter: 3 NEET level, 5 JEE Main, 6 JEE Advanced. Each one opens with its answer and solution.

• Assign the configuration of the stereocentre in the compound shown (butan-2-ol drawn with wedges). NEET level, drawn structure
• The amino acid shown is alanine drawn with wedges. The configuration of its stereocentre is NEET level, drawn structure
• The compound shown is 2-chlorobutane drawn with wedges. Its configuration is NEET level, drawn structure
• Glyceraldehyde, 2,3-dihydroxypropanal, is shown drawn with wedges. Which option gives the correct configuration and the correct reason? JEE Main level, drawn structure
• The compound shown is one stereoisomer of 3-chlorobutan-2-ol drawn with wedges. Its full configuration is JEE Advanced level, drawn structure
• The compound shown is (S)-butan-2-ol. Which of the four wedge drawings shown as options have the (R) configuration at their stereocentre? JEE Main level, drawn structure
• The compound shown is but-3-yn-2-ol drawn with wedges. Which option gives its configuration together with the correct ranking of the two carbon substituents? JEE Main level, drawn structure
• The compound shown is one stereoisomer of bicyclo[2.2.1]heptan-2-ol (norbornan-2-ol), drawn with wedges. Number the bridgehead next to the CHOH carbon as C1, th... JEE Advanced level, drawn structure
• The amino acid isoleucine, 2-amino-3-methylpentanoic acid, is shown drawn with wedges. How many of its stereocentres have the (S) configuration? Give an integer... JEE Advanced level, drawn structure
• The open-chain aldohexose shown is drawn with wedges (it is D-glucose). Number the carbonyl carbon as C1. How many of its four stereocentres have the (R) config... JEE Advanced level, drawn structure
• The compound shown is one stereoisomer of 2-isopropyl-5-methylcyclohexan-1-ol drawn with wedges (C1 bears OH, C2 bears isopropyl, C5 bears methyl). How many of ... JEE Main level, drawn structure
• The compound shown is one stereoisomer of 1,2-dichlorocyclohexane drawn with wedges. Consider configuration only. Which of the following statements are correct? JEE Advanced level, drawn structure
• The compound shown is (R)-2-chlorobutane. Which of the wedge drawings shown as options is its enantiomer? JEE Main level, drawn structure
• The compound shown is one stereoisomer of tartaric acid (2,3-dihydroxybutanedioic acid) drawn with wedges. Its configuration is JEE Advanced level, drawn structure