Question
Assertion (A): Ionization enthalpy increases along each series of transition elements from left to right. However, small variations occur. Reason (R): There is a corresponding increase in nuclear charge which accompanies the filling of electrons in the inner -orbitals.
(A) is True but (R) is False
(A) is False but (R) is True
Both (A) and (R) are True and (R) is the correct explanation of (A)
Both (A) and (R) are True but (R) is not the correct explanation of (A)
There is a general increase in ionisation enthalpy along each series of the transition elements from left to right. This is due to an increase in nuclear charge which accompanies the filling of the inner orbitals . The variations are relatively small because the added electrons shield the outermost electrons from the increasing nuclear charge somewhat effectively. Thus, both the Assertion and the Reason are correct, and the Reason provides the correct explanation for the Assertion.
This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from The d-and f-Block Elements. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.
More The d-and f-Block Elements Questions
The $E^\circ$ value for the $Mn^{3+}/Mn^{2+}$ couple is more positive than that of $Cr^{3+}/Cr^{2+}$ or $Fe^{3+}/Fe^{2+}$ due to change of:
The catalytic activity of transition metals is due to:
The manganate and permanganate ions are tetrahedral, due to:
The incorrect statement among the following is:
When neutral or faintly alkaline $KMnO_4$ is treated with potassium iodide, iodide ion is converted into 'X'. 'X' is:
Identify the incorrect statement among the following:
Acidified $K_2Cr_2O_7$ solution turns green when $Na_2SO_3$ is added to it. This is due to the formation of:
Which of the following ions will exhibit colour in aqueous solutions?
Why 32,000+ students choose TopperSquare
15,000+ Chapter MCQs
Physics, Chemistry, Biology — chapter-wise, topic-wise practice
AI Performance Analytics
Know your weak topics. Get a personalised study plan.
Full NEET Mock Tests
180 questions, timed, with detailed score analysis
PYQ Sets 2010–2024
15 years of past papers with solved explanations
No credit card · 30-second signup · Free forever plan included
This neet chemistry practice question is part of the TopperSquare free question bank. TopperSquare offers 15,000+ chapter-wise NEET MCQs across Physics, Chemistry, and Biology with detailed step-by-step explanations, full mock tests, NEET PYQs (2010–2024), and an AI-powered performance analytics dashboard. browse all neet practice questions → · practice chemistry sets →
Sign in to save your score, view detailed analytics, and bookmark tough questions for revision.
Sign In / Join FreeChapter-wise practice sets
Identify weak areas instantly
Step-by-step logic for every question