Q21 of 59 Page 30

In the following questions two or more options may be correct.

Which of the following have no unit?


Electron gain enthalpy and ionisation enthalpy have units of enthalpy but electronegativity and metallic character don’t have.

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19

In the following questions two or more options may be correct.

Which of the following sets contain only isoelectronic ions?


 20

In the following questions two or more options may be correct.

In which of the following options order of arrangement does not agree with the variation of property indicated against it?


 22

In the following questions two or more options may be correct.

Ionic radii vary in


 23

In the following questions two or more options may be correct.

An element belongs to 3rd period and group-13 of the periodic table. Which of the following properties will be shown by the element?