Transition And Innertransition Elements
- Transition and InnerTransition Elements - Result Question 1
- Transition and InnerTransition Elements - Result Question 9 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 2
- Transition and InnerTransition Elements - Result Question 11 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 3
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- Transition and InnerTransition Elements - Result Question 37
- Transition and InnerTransition Elements - Result Question 38
- Transition and InnerTransition Elements - Result Question 39 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 8
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- Transition and InnerTransition Elements - Result Question 44
- Transition and InnerTransition Elements - Result Question 45
- Transition and InnerTransition Elements - Result Question 9 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 46 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 48 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 51 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 53
- Transition and InnerTransition Elements - Result Question 54
- Transition and InnerTransition Elements - Result Question 11 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 55
- Transition and InnerTransition Elements - Result Question 56 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 58 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 12
- Transition and InnerTransition Elements - Result Question 60
- Transition and InnerTransition Elements - Result Question 61 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 63 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 13
- Transition and InnerTransition Elements - Result Question 66
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- Transition and InnerTransition Elements - Result Question 14
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- Transition and InnerTransition Elements - Result Question 71
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- Transition and InnerTransition Elements - Result Question 73
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- Transition and InnerTransition Elements - Result Question 17
- Transition and InnerTransition Elements - Result Question 18
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- Transition and InnerTransition Elements - Result Question 20
- Transition and InnerTransition Elements - Result Question 21
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- Transition and InnerTransition Elements - Result Question 31
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- Transition and InnerTransition Elements - Result Question 33
- Transition and InnerTransition Elements - Result Question 34
- Transition and InnerTransition Elements - Result Question 35
- Transition and InnerTransition Elements - Result Question 39 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 40
- Transition and InnerTransition Elements - Result Question 46 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 48 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 49
- Transition and InnerTransition Elements - Result Question 51 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 56 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 58 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 61 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 63 — JEE PYQ Chapterwise
- Transition and InnerTransition Elements - Result Question 64
- Transition and InnerTransition Elements - Result Question 74
Transition and InnerTransition Elements - Result Question 9 — JEE PYQ Chapterwise
10. The element that usually does not show variable oxidation states is
(2019 Main, 11 Jan I)
(a) $Sc$
(b) $Cu$
(c) $Ti$
(d) $V$
Show Answer
Answer:
Correct Answer: 10. (a)
Solution:
The most stable oxidation states in the compounds of the given transition metals of $3 d$-series are,
$Sc:+3 ; Ti:+3,+4 ; V:+2,+3,+4,+5 ; Cu:+1,+2$
The electronic configuration of $Sc(Z=21)$ is $[Ar] 3 d^{1}, 4 s^{2}$.
Due to the presence of only one $3 d$-electron
(no pairing energy) and two $4 s$-electrons, they easily ionise to achieve most stable +3 oxidation state.
BETA
