E/Z and geometrical isomers from drawn structures

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

• The but-2-ene isomer shown has the two methyl groups on opposite sides of the double bond. Its configuration is NEET level, drawn structure
• The compound shown is 1-bromo-2-chloroethene drawn with Br and Cl on the same side of the double bond. Its configuration is NEET level, drawn structure
• Ethene, shown, has no geometrical isomers. Which one of the alkenes shown as options can exist as a pair of cis/trans (geometrical) isomers? NEET level, drawn structure
• The compound shown is 3-methylpent-2-ene drawn with a definite geometry. Its configuration is JEE Main level, drawn structure
• The compound shown is 2-chlorobut-2-ene drawn with a definite geometry. Its configuration is JEE Main level, drawn structure
• The compound shown is hepta-2,4-diene drawn without stereochemistry. How many geometrical isomers does it have? Give an integer. JEE Main level, drawn structure
• The compound shown is 2-bromo-3-methylpent-2-ene drawn with a definite geometry. Its configuration is JEE Advanced level, drawn structure
• The hexa-2,4-diene stereoisomer shown is drawn with a definite geometry at both double bonds. Which of the following statements are correct? JEE Advanced level, drawn structure
• The compound shown is octa-2,4,6-triene drawn without stereochemistry. How many geometrical isomers does it have? Give an integer. JEE Advanced level, drawn structure
• The compound shown is acetaldehyde oxime, CH3CH=NOH, drawn with a definite geometry about the C=N bond. Its configuration is JEE Main level, drawn structure
• The compound shown is one stereoisomer of 4-methylhex-2-ene drawn with wedges at C4 and a definite geometry at the double bond. Its complete descriptor is JEE Advanced level, drawn structure
• The compound shown is 2-isopropyl-3-methylpent-2-en-1-ol drawn with a definite geometry. Which option gives its configuration with the correct reasoning? JEE Advanced level, drawn structure
• Cyclopropane, shown, has no stereoisomers. Treat rings as planar and consider configuration only. Which of the ring compounds shown as options exhibit cis/trans... JEE Main level, drawn structure
• The compound shown is 2-chloro-3-fluorobut-2-ene drawn with a definite geometry. Which of the following statements are correct? JEE Advanced level, drawn structure