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 element with positive electron gain enthalpy is:
  • A
    Hydrogen.
  • B
    Sodium.
  • C
    Oxygen.
  • D
    Neon.
✓

Answer

  1. Neon.

Explanation:

It has positive electron enthalpy due to stable electron gain enthalpy, there is repulsion between electron to be added and valence electrons.

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

Which of the following can exhibit cis-trans isomerism
→
The alkaline earth metal which shows properties similar to aluminium is:
→
The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are -400kJ/ mol, -300kJ/ mol and -1300kJ/ mol-1 respectively. The standard enthalpy of combustion per gram of glucose of 25°C is:
→
Which of the following species is not electrophilic in nature
→
During change of $O^2$ to $O_2^-$ ion, the electron adds on which one of the following  orbitals?
→
The oxidation state of phosphorous is ............. in phosphoric acid.
→
Four species are listed below :

$i\,\, HCO_3$      $ii. \,H_3O^+$

$iii.\, HSO_4^-$       $iv.\, HSO_3F$

Which one of the following is the correct sequence of their acid strength?

→
Predict the major product
→
Which one does not exhibit paramagnetism
→
If 500mL of a 5M solution is diluted to 1500mL, what will be the molarity of the solution obtained?
→