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
Which of the following is not representative element ?
  • A
    Tellurium
  • ✓
    Tantalum
  • C
    Thallium
  • D
    Astatine
✓

Answer

Correct option: B.
Tantalum
b
From left to right in periodic table :-

Metallic character decreases

Non-metallic character increases

$\Rightarrow$ It is due to increase in ionization enthalpy and increase in electron gain enthalpy.

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

The total number of gm-molecules of $S{O_2}C{l_2}$ in $13.5\,g$ of sulphuryl chloride is
→
Review the equilibrium and choose the correct statement

$HCl{O_4} + {H_2}O$ $ \rightleftharpoons $ ${H_3}{O^ + } + ClO_4^ - $

→
The molar solubility $(mol\;{L^{ - 1}})$ of a sparingly soluble salt $M{X_4}$ is $'s'$. The corresponding solubility product is ${K_{sp}}$. $'s'$ is given in terms of $_{{K_{sp}}}$ by the relation
→
The $\Delta H_f^o$ for $CO_2 (g), CO(g)$ and $H_2O (g)$ are $-393.5, -110.5$ and $-241.8\, kJ\, mol^{-1}$ respectively. The standard enthalpy change (in $kJ$) for the reaction $CO_2 (g) + H_2 (g) \to CO (g) + H_2O (g)$ is
→
For the redox reaction $MnO_4^ - + {C_2}O_4^{ - 2} + {H^ + } \to \,M{n^{2 + }} + C{O_2} + {H_2}O$ the correct coefficients of the reactants for the balanced reaction are

$MnO_4^ - $               ${C_2}O_4^{2 - }$             ${H^ + }$

→
An atom of an element has two electrons in the M shell. Identify its atomic number.
→
Among the following which has the highest first ionization energy
→
On the basis of Bohr's model, the radius of $3^{rd}$ orbit is
→
Photoelectric effect established that light
→
Which theory can be best understood by considering the formation of the chlorine molecule, Cl2?
→