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 24 of 27
- A. Pale yellow
- B. greenish yellow
- C. Reddish brown
- D. Iodine
Explanation: Chlorine gas has a distinctive greenish-yellow color at room temperature and atmospheric pressure.This color is due to the absorption of…
Correct answer: greenish yellow- A. Fluorine
- B. Chlorine (Cl)
- C. Bromine (Br)
- D. Iodine (I)
Explanation: Fluorine's exceptional reactivity:Fluorine is the most reactive element among all halogens, and its high reactivity extends to its ability…
Correct answer: Fluorine- A. All are non-metals
- B. All the halogens have electronic configuration ns²np⁵
- C. They have high electron affinity and ionization energy
- D. All the halogens react with noble gases to form their halides
Explanation: Why d is incorrect: Noble gases are notoriously unreactive due to their complete valence shells, making them resistant to forming bonds…
Correct answer: All the halogens react with noble gases to form their halides- A. NaClO
- B. NaCIO2
- C. NaCIO3
- D. NaCIO4
Explanation: Sodium hypochlorite, commonly known as bleach, is a compound containing sodium, chlorine, and oxygen.
Correct answer: NaClO- A. Cotton
- B. Costly fabrics.
- C. linen
- D. paper pulp
Explanation: Bleaching powder (CaOCl2), a strong oxidizing agent, is commonly used for bleaching various materials, but it has limitations:Materials it…
Correct answer: Costly fabrics.- A. HF
- B. HBr
- C. HCl
- D. HI
Explanation: The strength of a reducing agent depends on its ability to donate electrons.
Correct answer: HF- A. SbF2 is used for manufacture of pottery.
- B. Sodium fluoroacetate
- C. CuF2
- D. None of the above
Explanation: Incorrect options and their uses:(b) Sodium fluoroacetate: This is indeed a highly toxic rat poison due to its ability to block energy…
Correct answer: SbF2 is used for manufacture of pottery.- A. AgNO3 (silver nitrate)
- B. AgI (silver iodide)
- C. AgCl (silver chloride)
- D. AgBr (silver bromide)
Explanation: Key properties of silver halides in photography:Silver halides (AgX, where X represents a halogen) are light-sensitive compounds.When…
Correct answer: AgBr (silver bromide)- A. Iodine
- B. bromine
- C. chlorine
- D. F2
Explanation: Teflon, also known as polytetrafluoroethylene (PTFE), is a synthetic polymer with exceptional properties like high heat resistance, low…
Correct answer: F2- A. Soll porocity
- B. Proper growth of plants
- C. Alkalinity of soil
- D. All
Explanation: Therefore, Boron is primarily categorized as a micronutrient for its essential role in proper growth and development of plants.
Correct answer: Proper growth of plants- A. Cu
- B. Cr
- C. NI
- D. Al
Explanation: Al: Aluminum, however, does not readily form colored complexes with borax under the conditions of the Borax bead test.
Correct answer: Al- A. Si
- B. Ge
- C. Se
- D. Sn
- E. None of them
Explanation: ll the listed elements, Si, Ge, Se, and Sn, are semiconductors. Therefore, the answer to "Which one of the following is not a…
Correct answer: None of them- A. Na2B4O7.4H2O
- B. Na2B4O7.5H2O
- C. Na2B4O7.2H20
- D. Na2B4O7.10H20
Explanation: Na2B4O7.5H2O: This hydrate has moderate solubility and could potentially crystallize at 62°C, depending on the concentration of the…
Correct answer: Na2B4O7.5H2O- A. -OH
- B. ОСНз
- C. 02
- D. CH3
Explanation: The key difference between silicon and silica lies not in the addition of groups like -OH, CH3, or OCH3, but in the nature of the chemical…
Correct answer: 02- A. Zn
- B. Fe2+
- C. Ni3+
- D. Cu+
Explanation: Iron (Fe) in the +2 oxidation state has an electronic configuration of (Ar) 3d6.
Correct answer: Fe2+- A. Rare earth elements
- B. Outer transition elements
- C. Inner transition elements
- D. Typical transition elements
Explanation: The d-block elements are found in groups 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 of the periodic table; d-block elements are also known as the…
Correct answer: Outer transition elements- A. Type of ligands
- B. Types of hybridization in the elements of ligands
- C. Hybridization of central metal
- D. All of above options are correct
Explanation: The configuration of the complex depends on the type and number of orbitals involved in the hybridization.
Correct answer: Hybridization of central metal- A. English
- B. Greek
- C. Roman numerals
- D. Hebrew
Explanation: The oxidation number of metal is written in Roman Numerals.
Correct answer: Roman numerals- A. Amine
- B. Oxalate
- C. Carbonyl
- D. Cyano
Explanation: Option B is correct since Oxalate is a bidentate ligand, and it shapes a chelate. This may be coordinated with all the O atoms.
Correct answer: Oxalate480. Pure metal:
- A. Corrodes slowly
- B. Does not corrode easily
- C. Corrodes rapidly
- D. None of these options are correct
Explanation: Pure metals are not easily corroded, even iron hardly gets corroded if pure. The impurities present in the metal promote corrosion.
Correct answer: Does not corrode easily