D and F Block Elements NEET Questions. We covered all the D and F Block Elements NEET Questions in this post for free so that you can practice well for the exam.
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D and F Block Elements NEET Objective Questions for Students
The number of transition series in the long form of the periodic table is
(A) 2
(B) 3
(C) 4
(D) 5
Option c – 4
Platinum and Gold are called noble metals because
(A) They were discovered by Alfred Noble
(B) They are shining and lustrous
(C) They are found in active states
(D) They almost do not react with other substances
Option d – They almost do not react with other substances
Which one of the following statements is incorrect about transition elements?
(A) The last electron enters the d-orbitals
(B) Their properties lie in between those of s-block elements and p-block elements
(C) The transition element with the smallest atomic number is scandium
(D) Lanthanum is not a transition element but is a lanthanide
Option d – Lanthanum is not a transition element but is a lanthanide
Within each transition series, the oxidation state
(A) Decreases regularly in moving from left to right
(B) First increases till the middle of the series and then decreases
(C) First decreases till the middle of the series and then increases
(D) None of the above
Option b – First increases till the middle of the series and then decreases
Paramagnetism in transition elements is due to
(A) Unpaired electrons
(B) Paired electrons
(C) Vacant d-orbitals
(D) Completely filled d-orbitals
Option a – Unpaired electrons
Which one of the following is ferromagnetic?
(A) Cr
(B) Fe
(C) Mg
(D) Al
Option b – Fe
CrO3 is a/an……
(A) Acidic oxide
(B) Basic oxide
(C) Neutral oxide
(D) Amphoteric
Option a – Acidic oxide
The oxidation state of Chromium in K₂Cr2O7 is
(A) +5
(B) +3
(C) +6
(D) +7
Option c – +6
The highest oxidation state shown by any transition element is
(A) +2
(B) +6
(C) +7
(D) +8
Option d – +8
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