Given below are two statements: Statement I: The number of pairs, from the following, in which both the ions are coloured in aqueous solution is 3. [ Sc³⁺, Ti³⁺ ], [ Mn²⁺, Cr²⁺ ], [ Cu²⁺, Zn²⁺ ] and [ Ni²⁺, Ti⁴⁺ ] Statement II: Th⁴⁺ is the strongest reducing agent among Th⁴⁺, Ce⁴⁺, Gd³⁺ and Eu²⁺. In the light of the above statements, choose the correct answer from the options given below

(A) Both Statement I and Statement II are false

(B) Both Statement I and Statement II are true

(C) Statement I is false but Statement II is true

(D) Statement I is true but Statement II is false

d- and f-Block Elements: JEE Main 2026 Chemistry question

JEE Main 2026 · 28 Jan, Morning shift · Q55

JEE Main 202628 Jan, Morning shiftChemistryHardd- and f-Block Elements158× since 2002

Given below are two statements: Statement I: The number of pairs, from the following, in which both the ions are coloured in aqueous solution is 3.

[\mathrm{Sc^{3+}},\mathrm{Ti^{3+}}]

[\mathrm{Mn^{2+}},\mathrm{Cr^{2+}}]

[\mathrm{Cu^{2+}},\mathrm{Zn^{2+}}]

and

[\mathrm{Ni^{2+}},\mathrm{Ti^{4+}}]

Statement II:

\mathrm{Th^{4+}}

is the strongest reducing agent among

\mathrm{Th^{4+}}

\mathrm{Ce^{4+}}

\mathrm{Gd^{3+}}

and

\mathrm{Eu^{2+}}

. In the light of the above statements, choose the correct answer from the options given below

JEE Main 2026 d- and f-Block Elements Question with Solution (28 Jan Morning shift, Q55) | JEE Arc