JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
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:
\( [Sc^{3+}, Ti^{3+}], [Mn^{2+}, Cr^{2+}], [Cu^{2+}, Zn^{2+}] \) and \( [Ni^{2+}, Ti^{4+}] \).
Statement II: \( Th^{4+} \) is the strongest reducing agent among \( Th^{4+}, Ce^{4+}, Gd^{3+} \) and \( Eu^{2+} \).
In the light of the above statements, choose the correct answer from the options given below
- A Statement I is true but Statement II is false
- B Statement I is false but Statement II is true
- C Both Statement I and Statement II are false
- D Both Statement I and Statement II are true
Answer & Solution
Correct Answer
(C) Both Statement I and Statement II are false
Step-by-step Solution
Detailed explanation
\(Sc ^{3+} Ti ^{4+}\) and \(Zn ^{2+}\) are colourless \(Th ^{4+}\) cannot act as a reducing agent.
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