Free Transition Elements MCQs with Answers
531 Transition Elements MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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Read the Transition Elements notesFree MDCAT chapter notes with key terms531 questions · page 23 of 27
- A. And, Jess
- B. Bragged:
- C. Regardless
- D. Ten
Explanation: The correct answer is B) Bragged.Corrected Sentence: "And, Jess," he bragged, "regardless of my threescore years and ten, I ploughed…
Correct answer: Bragged:- A. Repulse
- B. Summoned
- C. Surfeit
- D. Dismissed
Explanation: To beckon is to motion or gesture someone to approach you. summon is to order someone to be present.
Correct answer: Summoned- A. 120
- B. 174
- C. 128
- D. 175
Explanation: To solve the sequence 180, 140, 179, 138, 177, 134, ?, separate the terms by their positions:Odd-position terms: 180, 179…
Correct answer: 174- A. A. If statement I is the cause and statement II is its effect;
- B. B. If statement II is the cause and statement I is its effect;
- C. C. If both the statements I and II are independent causes;
- D. D. If both the statements I and II are effects of independent causes;
- E. E. If both the statements I and II are effects of some common cause;
Explanation: The correct answer is B. The drop in the tax on petrol imports (statement II) likely caused the government to reduce petrol prices…
Correct answer: B. If statement II is the cause and statement I is its effect;- A. If only I follow
- B. If only II follows
- C. If either I or II follows
- D. If neither I nor II follows
- E. If both I and II follows
Explanation: The explanation for this question will be added soon!
Correct answer: If only II follows- A. [Ar] 3d44s1
- B. [Ar] 3d44s2
- C. [Ar] 3d54s2
- D. [Ar] 3d54s1
Explanation: In 3d series (1st series of transition elements), two elements "Cr" and "Cu" have differe electronic configuration.
Correct answer: [Ar] 3d54s1- A. [Ar]4s23d4
- B. [Ar) 4s23d4
- C. [Ar]3d54s1
- D. [Ar)4s13d6
Explanation: The correct electronic configuration of Chromium (Cr) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵.
Correct answer: [Ar]3d54s1- A. Potassium Tetra Cyano Cupperate
- B. Ligand is positively charged
- C. Coordination Number is 2
- D. Central atom is present in anionic sphere
Explanation: In the complex K2[Cu(CN)4], the central atom is copper (Cu), and it is present in the anionic sphere.
Correct answer: Central atom is present in anionic sphere449. Pure metal?
- A. corrode slowly
- B. corode rapidly
- C. does not corrode easily
Explanation: This statement is generally true for pure metals. Pure metals have a high degree of chemical stability and are less prone to corrosion…
Correct answer: does not corrode easily- A. simple ions
- B. complex ions
- C. Double salts
- D. strong anion
Explanation: Transition metal compounds can form complex ions in solution by coordinating with surrounding molecules or ions.
Correct answer: complex ions- A. ligand
- B. mono dentate ligand
- C. polydendate ligand
- D. bi dendate ligand
Explanation: This term refers to a ligand that can donate only two pairs of electrons. Why not polydentate ?
Correct answer: ligand- A. Complex Ion
- B. coordination sphere
- C. Ligands
- D. Complex Compounds
Explanation: The coordination sphere includes the central metal atom or ion and its surrounding ligands. It is part of the entire complex compound.
Correct answer: coordination sphere453. When the central atom of coordination compound is sp3d2 hybridization, the expected geometry will be
- A. tetrahedral
- B. square plannar
- C. trigonal bi pyramidal
- D. octahedral
Explanation: Octahedral geometry is consistent with sp3d2 hybridization. In octahedral geometry, the central atom is surrounded by six ligands arranged…
Correct answer: octahedral- A. CaSiO3
- B. Fe2O3
- C. Ca3(PO4)2
- D. MnSiO3
Explanation: This compound is calcium phosphate, and it is commonly used as a fertilizer.
Correct answer: Ca3(PO4)2- A. HF (Hydrofluoric acid)
- B. HCl
- C. HBr
- D. HI
Explanation: While HF is the weakest acid in water among the given options, it's important to remember that it's still a highly corrosive and dangerous…
Correct answer: HF (Hydrofluoric acid)- A. ns²p²
- B. ns²p⁴
- C. ns²p⁵
- D. iodine
Explanation: Group VIIA (or Group 17) elements: These elements, also known as halogens, have seven valence electrons in their outermost…
Correct answer: ns²p⁵- A. HClO (Hypochlorous acid)
- B. HClO2 (Chlorous acid)
- C. HClO3 (Chloric acid)
- D. HClO4 (Perchloric acid)
Explanation: Strength of Oxyacids of Chlorine:The strength of oxyacids of chlorine generally increases as the number of oxygen atoms attached to the…
Correct answer: HClO4 (Perchloric acid)- A. Displacement reaction
- B. Double displacement reaction
- C. Disproportionation reaction
- D. Reduction reaction
Explanation: What is a disproportionation reaction?It's a type of redox reaction where a single element undergoes both oxidation and reduction…
Correct answer: Disproportionation reaction- A. Fluorine
- B. Chlorine (Cl)
- C. Bromine (Br)
- D. Iodine (I)
Explanation: Fluorine has the highest electronegativity among the halogens. Electronegativity is a measure of an atom's ability to attract electrons in…
Correct answer: Fluorine- A. F2 - fluorine.
- B. Oxidizing power
- C. Halogens and oxidizing power
- D. Relative oxidizing power of halogens
Explanation: Oxidizing power: Oxidizing agents have the ability to accept electrons from other substances, causing them to be oxidized (lose…
Correct answer: F2 - fluorine.