Download App

Classification of Elements and Periodicity in Properties — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryClassification of Elements and Periodicity in Properties1 Mark
MCQ
The incorrect statement among the following is:
  • A
    The first ionisation potential of Al is less than the first ionisation potential of Mg.
  • B
    The second ionisation potential of Mg is greater than the second ionisation potential of Na.
  • C
    The first ionisation potential of Na is less than the first ionisation potential of Mg.
  • D
    The third ionisation of potential of Mg is greatest.
✓

Answer

  1. The second ionisation potential of Mg is greater than the second ionisation potential of Na.

Explanation:

After removal of an electron sodium acquires stable noble gas configuration. It is difficult to remove electron from stable noble gas configuration species.

Therefore, second ionization potential of Mg is less than that of Na.

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 Classification of Elements and Periodicity in Properties→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

At 363K, pure water has [H2O+] = 10-6M. The value of Kw at this temperature will be:
→
Bombardment of aluminum by $\alpha$-particle leads to its artificial disintegration in two ways, $(i)$ and $(ii)$ as shown. Products ${X},$ ${Y}$ and ${Z}$ respectively are,
→
Which of the following endothermic processes are spontaneous
→
How many chiral carbons are there in Reserpine (an antipsychotic drug)?
→
The $IUPAC$ name of given compound is

$\begin{array}{*{20}{c}}
  {C{H_3} - CH - CH - C{H_2} - C{H_3}} \\ 
  {\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {\,\,CN\,\,\,\,\,\,\,\,\,CH = C{H_2}\,\,} 
\end{array}$

→
Which of the following represents correct order of electron affinity?
→
Which of the following set of quantum number is not possible

         $n$                $l$             $m_1$                $m_2$    

→
An atom with high electronegativity has
→
Identify correct stability order of resonating structures ?
→
When $\psi_{\mathrm{A}}$ and $\Psi_{\mathrm{B}}$ are the wave functions of atomic orbitals, then $\sigma^*$ is represented by :
→