MCQ
Which pair is different from the others?
- ✓$\ce{Li − Mg}$
- B$\ce{Na − K}$
- C$\ce{Ca − Mg}$
- D$\ce{B − Al}$
✓
Answer
Correct option: A.
$\ce{Li − Mg}$
$\ce{Li − Mg}$ have a diagonal relationship between them i.e. they show various similar properties.
Whereas $\ce{Na − K}$ belongs to Group $- 1, \ce{Ca − Mg}$ belongs to Group $- 2$ while $\ce{B − Al}$ belongs to Group $- 13.$
Whereas $\ce{Na − K}$ belongs to Group $- 1, \ce{Ca − Mg}$ belongs to Group $- 2$ while $\ce{B − Al}$ belongs to Group $- 13.$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The compound containing co-ordinate bond is
The decreasing order of the ionisation potential in the following elements is
The $IUPAC$ name of $n-$butyl chloride is
→$BeCl _{2}$ reacts with $LiAlH _{4}$ to give ....
→Main product of following reaction will be
Which of the following does not decolourise bromine solution in carbon disulphide
Incorrect match is
Which of the following is not correct?
Consider the following compounds
Hyper conjugation occurs in :
Hyper conjugation occurs in :
The most common type of reaction in aromatic compounds is