Answer: Sodium.
- A Magnesium
- B Sodium
- C Calcium
- D Zinc
Correct answer: B. Sodium
Explanation: Sodium fusion converts covalently bound N, S and halogens into ionic species (NaCN, Na<sub>2</sub>S, NaX) that can then be detected in aqueous extract.
Geometric (cis-trans) isomers of 1,2-dichloroethene differ only in the relative arrangement of groups across the rigid C=C double bond.
Concept context
General Organic Chemistry covers the rules behind all organic reactions. Covers inductive effect, resonance, hyperconjugation, types of reactions (substitution, addition, elimination), and isomerism including optical and geometric forms.
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