Question 1

Which element displays ferromagnetism?

Accepted Answer

Co is the only element listed that displays ferromagnetism, which is the strongest type of magnetism. The other elements listed may display other types of magnetism or no magnetism at all.

Question 2

Transition group elements differ from main group metals in several ways.Which differences of the following are correct?

Accepted Answer

The answer of Transition group elements differ from main group...

Question 3

Choose the INCORRECT statement about transition elements.

Accepted Answer

Ferromagnetism is actually associated with unpaired electrons, not paired electrons. This property arises because the magnetic moments of unpaired electrons in adjacent atoms align in the same direction, leading to a strong magnetic field.

Question 4

The phenomenon resulting from the weakly effective screening of outermost electrons from the nucleus by f subshell electrons,resulting in only small differences in atomic radii in elements of atomic number 58-71,is called the:

Accepted Answer

The phenomenon described is known as the lanthanide contraction, which refers to the small differences in atomic radii in elements of atomic number 58-71 due to weakly effective screening of outermost electrons from the nucleus by f subshell electrons. This contraction results in the atoms of these elements having similar atomic radii. Therefore, option C is the correct choice. The other options (A, B, D, and E) are not relevant to the phenomenon described.

Question 5

Choose the INCORRECT statement about metallurgy.

Accepted Answer

Refining is not the removal of metal from its ore, but rather the purification of the metal after it has been extracted from the ore.

Question 6

Choose the INCORRECT statement about metallurgy.

Accepted Answer

Roasting converts an ore to its oxide, not its sulfide.

Question 7

Choose the INCORRECT completion of the following sentence:
"The transition elements are typically characterized by....

Accepted Answer

The statement "poor electrical conductivity" is not a characteristic of transition elements. In fact, transition elements are known for their good electrical conductivity.

Question 8

The electronic transitions that take place within d or f subshells of transition metals:

Accepted Answer

The electronic transitions within d or f subshells of transition metals are responsible for the highly colored compounds of these elements. This is because these transitions involve absorption or emission of light in the visible range, which gives rise to the characteristic colors of their compounds. None of the other options are correct, as metallic character, conductivity, density, and ferromagnetism are not uniquely related to electronic transitions within d or f subshells.

Question 9

Which of the following statements is true regarding the oxidation states of the transition elements?

Accepted Answer

Osmium (Os) is the only element in group 8 that commonly forms compounds with an oxidation state of +8, such as in osmium tetroxide (OsO4).

Question 10

Which of the following elements is likely to have an atomic radius of 124 pm?

Accepted Answer

The answer of Which of the following elements is likely...

Question 11

Which of the following metals form compounds with the highest oxidation states?

Accepted Answer

Manganese (Mn) is known to form compounds with the highest oxidation states among the options given, reaching up to +7 in compounds like permanganate (MnO4^-).

Question 12

A property that is common to both main group and transition metals is that both types:

Accepted Answer

The answer of A property that is common to both...

Question 13

Which of the following exhibits ferromagnetism?

Accepted Answer

Nickel (Ni) is known to exhibit ferromagnetism, meaning it has a strong magnetic attraction and can retain its magnetic properties even after removing the magnetic field. The other options (Ru, Rh, Mn) do not exhibit ferromagnetism.

Question 14

The paramagnetism of transition element compounds is caused by:

Accepted Answer

Transition elements have partially filled d and f orbitals which can contain unpaired electrons. These unpaired electrons can create a magnetic moment, causing paramagnetism.

Question 15

Choose the INCORRECT statement.

Accepted Answer

Pyrometallurgy typically involves high temperatures to extract metals from ores, rather than low temperatures to freeze them out. Therefore, statement D is incorrect.

Question 16

Which of the following will be a good oxidizing agent?

Accepted Answer

V₂O₅ is a powerful oxidizing agent due to its ability to transfer oxygen atoms to other substances. Answer: B Fe(OH₂)₆²⁺ is a complex salt and not a pure compound. It may or may not act as an oxidizing agent depending on the reaction conditions. Answer: C Zn is a reducing agent and cannot act as an oxidizing agent. Answer: D CoCl₂ is a simple salt and does not have the ability to act as an oxidizing agent.

Question 17

Choose the INCORRECT statement.

Accepted Answer

Most transition element bonding involves d orbitals, not p orbitals.

Question 18

Which of the following transition elements is unreactive towards aqueous hydrochloric acid?

Accepted Answer

Copper is unreactive towards aqueous hydrochloric acid because it is below hydrogen in the reactivity series and does not displace hydrogen from acids.

Question 19

Which element has the lowest first ionization potential?

Accepted Answer

Among the given elements, Ti has the lowest first ionization potential. This is because Ti has a larger atomic radius compared to the other elements, which means that its valence electrons are farther away from the nucleus and experience less attraction, making them easier to remove.

Question 20

Choose the INCORRECT statement about the electron configuration of transition elements.

Accepted Answer

Chromium (Cr) has an electron configuration of [Ar]3d⁵4s¹, not [Ar]3d⁴4s², due to the stability provided by a half-filled d subshell.

Quiz 23: The Transition Elements

Which element displays ferromagnetism?

Transition group elements differ from main group metals in several ways.Which differences of the following are correct?

Choose the INCORRECT statement about transition elements.

The phenomenon resulting from the weakly effective screening of outermost electrons from the nucleus by f subshell electrons,resulting in only small differences in atomic radii in elements of atomic number 58-71,is called the:

Choose the INCORRECT statement about metallurgy.

Choose the INCORRECT statement about metallurgy.

Choose the INCORRECT completion of the following sentence: "The transition elements are typically characterized by....

The electronic transitions that take place within d or f subshells of transition metals:

Which of the following statements is true regarding the oxidation states of the transition elements?

Which of the following elements is likely to have an atomic radius of 124 pm?

Which of the following metals form compounds with the highest oxidation states?

A property that is common to both main group and transition metals is that both types:

Which of the following exhibits ferromagnetism?

The paramagnetism of transition element compounds is caused by:

Choose the INCORRECT statement.

Which of the following will be a good oxidizing agent?

Choose the INCORRECT statement.

Which of the following transition elements is unreactive towards aqueous hydrochloric acid?

Which element has the lowest first ionization potential?

Choose the INCORRECT statement about the electron configuration of transition elements.