MCQ
Which one of the following has largest ionic radius?
- ✓$O_2^{2 - }$
- B$Li^+$
- C$B^{3+}$
- D$F^-$
✓
Answer
Correct option: A.
$O_2^{2 - }$
a
On moving along a period ionic radii decreases due to increase in effective nuclear charge
On moving along a period ionic radii decreases due to increase in effective nuclear charge
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
A liquid confined inside an adiabatic container is taken from state $1$ to state $2$ by single stage process as shown, then $\Delta H$ is
→First and second excitation potentials of hydrogen atom (in $eV$) would be respectively
→In case of hydrogen atom when electron falls from higher level to $M$ shell, the corresponding spectral line will form the part of :
→The enthalpy of vapourisation of a liquid is 30kJ mol-1 and enthalpy of vapourisation is 75J mol-1. The boiling point of the liquid at 1atm is:
In hydroboration reaction
$I$. Syn addition takes place
$II$. Reaction proceed through formation of cyclic transition state
$III$. Markownikoff rule is followed in reaction
$IV$. Anti addition takes place and anti markownikoff rule is followed
→$I$. Syn addition takes place
$II$. Reaction proceed through formation of cyclic transition state
$III$. Markownikoff rule is followed in reaction
$IV$. Anti addition takes place and anti markownikoff rule is followed
Correct statement is/are
Solubility product for salt $A{B_2}$ is $4 \times {10^{ - 12}}$. Calculate solubility
→Which of the following reagent does not oxidize $HCl$ ?
→The formula of $3$ membered discrete chain silicate is
→The set of quantum number for the $19^{th}$ electrons in chromium is
→What will be the major product of following sequence of reactions?
→$n - Bu -\equiv\frac{(i) n-BuLi,n - C _{5} H _{11} Cl}{(ii) Lindlar\,\, cat, H _{2}}$