CBSE BoardEnglish MediumSTD 10ScienceMODEL PAPER 101 Mark
MCQ
Ethane - with the molecular formula $C _2 H _6$ has
A
9 covalent bonds
B
8 covalent bonds
C
7 covalent bonds
D
6 covalent bonds
✓
Answer
(c) 7 covalent bonds Explanation: Ethane - with the molecular formula $C _2 H _6$ - has 7 covalent bonds. 1 covalent bond (C - C) exists between the two carbon atoms. 3 C - H covalent bonds are formed by 3 hydrogen atoms with each carbon atom.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.