MCQ
The atomic weight of an element is double its atomic number. If there are four electrons in $2p$ orbital, the element is
- A$C$
- B$N$
- ✓$O$
- D$Ca$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Reason : trans-Compound in trans addition forms two types of stereoisomers.
Common name $\to $ $IUPAC$ name