MODEL PAPER 3 — Chemistry STD 12 Science — Question
Bihar BoardEnglish MediumSTD 12 ScienceChemistryMODEL PAPER 31 Mark
MCQ
Ethylidene chloride is a/an __________ .
A
vic-dihalide
B
vinylic halide
✓
gem-dihalide
D
allylic halide
✓
Answer
Correct option: C.
gem-dihalide
(c) gem-dihalide Explanation: Gem-dihalides are dihaloalkanes that have two halogen atoms of the same type attached to the same carbon a in a molecule. The common naming system of gem-dihalides (geminal halide) is alkylidene dihalides. Ethylidene dichloride thus is a gem-dihalide. The chemical formula of ethylidene dichloride is C3H6Cl2.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.