EASY
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What is the percentage of lanthanides and iron in Misch metal respectively?

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Important Questions on d- and f-Block elements

MEDIUM
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Among Ce4f15d16s2, Nd4f16s2, Eu4f76s2 and Dy4f106s2, the elements having highest and lowest 3rd ionisation energies, respectively are
MEDIUM
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids

Which of the following lanthanoid is diamagnetic?

Atomic no's Sm=62, Ce=58, Eu=63, Yb=70

EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Which of the following statement is not correct?
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Given below are two statements:

Statement I : CeO2 can be used for oxidation of aldehydes and ketones.

Statement II : Aqueous solution of EuSO4 is a strong reducing agent. In the light of the above statements, choose the correct answer from the options given below:

EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Mischmetal is an alloy consisting mainly of :
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Which one of the following lanthanoids does not form MO2? [M is lanthanoid metal]
HARD
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids

Identify the formula of compound (B) formed in following reaction.

(i) Lanthanoide (Ln) burnt in oxygen forming compound (A)

(ii) Compound (A) reacts with CO2 in excess to form compound (B)

MEDIUM
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
The most basic hydroxide among the following is
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Knowing that the chemistry of lanthanides (Ln) is dominated by their +3 oxidation state, which of the following statements is incorrect?
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Which one of the following statements related to lanthanons is incorrect?
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Which of the following properties is NOT of lanthanoids?
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Which statement is incorrect with reference to inner transition elements?
HARD
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
The incorrect statement among the following is:
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Which of the following cations has the strongest tendency towards complex formation?
MEDIUM
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Which one of the following lanthanides exhibits +2 oxidation state with diamagnetic nature ? (Given Z for Nd=60,Yb=70,La=57,Ce=58)
MEDIUM
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
The most basic hydroxide among the following is-
MEDIUM
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids

Which of the following statements is incorrect?

EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
The lanthanide ion that would show colour is:
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
Which of the following elements involves gradual filling of 4f - levels?
EASY
Chemistry>Inorganic Chemistry>d- and f-Block elements>Oxidation States and Chemical Reactivity of Lanthanoids
The major constituents of misch metal are