1
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Elements $$X, Y$$ and $$Z$$ have atomic numbers 19, 37 and 55 respectively. Which of the following statements is true about them ?

A
$$Y$$ would have an ionisation potential between those of $$X$$ and $$Z$$.
B
$$Z$$ would have the highest ionisation potential.
C
$$Y$$ would have the highest ionisation potential.
D
Their ionisation potential would increase with increasing atomic number.
2
KCET 2021
MCQ (Single Correct Answer)
+1
-0

The third ionisation enthalpy is highest in

A
alkali metals
B
alkaline earth metals
C
chalcogens
D
pnictogens
3
KCET 2019
MCQ (Single Correct Answer)
+1
-0

The first ionisation enthalpy of the following elements are in the order :

A
C < N < Si < P
B
P < Si < N < C
C
P < Si < C < N
D
Si < P < C < N
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