MCQ
The ionic radii of $L{i^ + },N{a^ + },{K^ + }$are in which of the following order
- ✓${K^ + } > N{a^ + } > L{i^ + }$
- B${K^ + } > N{a^ + } < L{i^ + }$
- C${K^ + } < N{a^ + } < L{i^ + }$
- D$L{i^ + } > N{a^ + } < {K^ + }$
✓
Answer
Correct option: A.
${K^ + } > N{a^ + } > L{i^ + }$
a
(a)Ionic radii increases down the group.
(a)Ionic radii increases down the group.
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
Which of the following having delocalised electrons?
Two reactions are given below:
→$2 \mathrm{Fe}_{(\mathrm{s})}+\frac{3}{2} \mathrm{O}_{2(\mathrm{~g})} \rightarrow \mathrm{Fe}_2 \mathrm{O}_{3(\mathrm{~s})}, \Delta \mathrm{H}^{\mathrm{o}}=-822 \mathrm{~kJ} / \mathrm{mol}$
$\mathrm{C}_{(\mathrm{s})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})} \rightarrow \mathrm{CO}_{(\mathrm{g})}, \Delta \mathrm{H}^{\mathrm{o}}=-110 \mathrm{~kJ} / \mathrm{mol}$
Then enthalpy change for following reaction
$3\mathrm{C}_{(\mathrm{s})}+\mathrm{Fe}_2 \mathrm{O}_{3(\mathrm{~s})} \rightarrow 2 \mathrm{Fe}_{(\mathrm{s})}+3 \mathrm{CO}_{(\mathrm{g})}$
Compound $A\ ($molecular formula $\mathrm{C}_5 \mathrm{H}_{10})$ gives only one monochlorinated product. Write the structure of compound $A$.
→What will be the effect on pH when 1 liter water is added to 2 liter solution of mixture of $CH _3 COOH$ and $CH _3 COONa$ :
→Which element having following electronic configurations has minimum ionization potential
The structure and hybridisation of $Si{(C{H_3})_4}$ is
→Bond energy of covalent $O - H$ bond in water is
→The expression for the solubility product of $A{l_2}\,{(S{O_4})_3}$ is
→The study of organic compounds even at present is done separate from other compounds because
The number of optical isomers in following compound is:. . . . . .
