Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
JEE Main & Advanced
Chemistry
Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
Question Bank
Critical Thinking
question_answer
Which of the following is not the correct increasing order of ionisation energy [RPMT 2000]
A)\[C{{l}^{-}}<Ar<{{K}^{+}}\]
B)\[Au<Ag<Cu\]
C) \[Cs<Rb<K\]
D)\[K<Ca<Sc\]
Correct Answer:
B
Solution :
The correct increasing order of I.E. is, \[Cu<Ag<Au.\]