Download App

3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
The correct order of radii is
  • A
    $N < Be < B$
  • ✓
    ${F^ - } < {O^{2 - }} < {N^{3 - }}$
  • C
    $Na < Li < K$
  • D
    $F{e^{3 + }} < F{e^{2 + }} < F{e^{4 + }}$
✓

Answer

Correct option: B.
${F^ - } < {O^{2 - }} < {N^{3 - }}$
b
(b)Ionic radii decreases significantly from left to right in a period among representative elements.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 3. Classification of elements and periodicity in properties→3. Classification of elements and periodicity in properties — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which one of the following is least reactive in a nucleophilic substitution reaction
→
The radius of which of the following orbit is same as that of first orbit of hydrogen atom?
→
An athlete is given $100\,g$ of glucose $\left( C _6 H _{12} O _6\right)$ for energy. This is equivalent to $1800\,kJ$ of energy.The $50\, \%$ of this energy gained is utilized by the athlete for sports activities at the event. In order to avoid storage of energy, the weight of extra water he would need to perspire is $.........g$ (Nearest integer)

Assume that there is no other way of consuming stored energy.Given : The enthalpy of evaporation of water is $45\,kJ\,mol ^{-1}$

Molar mass of $C , H$ and $O$ are $12.1$ and $16\,g\,mol ^{-1}$

→
For which of the reaction $\Delta H = \Delta E$
→
Magnetic moment 2.83BM is given by which of the following ions? [Atomic number Ti = 22, Cr = 24, Mn = 25, Ni = 28].
→
A compound contains atoms of three elements in $A, B$ and $C$. If the oxidation number of $A$ is $+2, B$ is $+5$ and that of $C$ is $-2$, the possible formula of the compound is
→
When vinyl $\&$ allyl are joined each other, we get
→
The shapes of methane, ethene and ethyne molecules are, respectively
→
Which of the following molecular species is not linear ?
→
The correct order of second $I.E. $ of $C, N, O$ and $F$ are in the order
→