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
Which of the following elements has the highest ionization energy?
  • A
    Al
  • B
    In
  • C
    Ga
  • D
    B
✓

Answer

  1. B

Explanation:

In the fifth group, ionization potential (I.E) decreases on moving down the group from top to bottom.

Therefore, boron (B) has the highest I.E.

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

Assign $A, B, C, D$ from given type of reaction. $3Mg\left( s \right) + {N_2}\left( g \right) \longrightarrow M{g_3}{N_2}$
→
In the equation ${H_2}S + 2HN{O_3} \to 2{H_2}O + 2N{O_2} + S$. The equivalent weight of hydrogen sulphide is
→
The heats of combustion of rhombic and monoclinic sulphur are respectively $ 70960 $ and $71030$  calories. What will be the heat of conversion of rhombic sulphur to monoclinic.....$calories$
→
The state of hybridisation of central atom in dimer of $BH_3$ and $BeH_2$ is
→
Which one of the following oxides is expected exhibit paramagnetic behaviour
→
The species, having bond angles of $120^o $ is
→
When $NaCl$ is dissolved in water the sodium ion becomes
→
Aniline under acidic medium, when chlorinated, produces :
→
Identify the element which can have highest oxidation numbers
→
The mass of $CO_2$ that will be obtained by heating $10\, kg$ of $80\%$ pure lime stone $(CaCO_3)$ is ............... $\mathrm{kg}$
→