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Most of the transition metals exhibit ...

Most of the transition metals exhibit
(i) paramagnetic behaviour
(ii) diamagnetic behaciour
(iii) variable oxidation states
(iv) formation of coloured ions

A

(ii), (iii) and (iv)

B

(i), (iii) and (iv)

C

(i), (ii) and (iii)

D

(i), (ii) and (iv)

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the properties exhibited by most transition metals, we will analyze each option step by step. ### Step 1: Analyze Paramagnetic Behavior - **Explanation**: Transition metals often have unpaired electrons in their d-orbitals. The presence of these unpaired electrons allows them to be attracted to an external magnetic field, which is the definition of paramagnetism. - **Conclusion**: Transition metals exhibit paramagnetic behavior. ### Step 2: Analyze Diamagnetic Behavior - **Explanation**: Diamagnetic substances have all their electrons paired, which means they are not attracted to a magnetic field. Most transition metals have unpaired electrons, so they do not exhibit diamagnetic behavior. - **Conclusion**: Transition metals do not exhibit diamagnetic behavior. ### Step 3: Analyze Variable Oxidation States - **Explanation**: Transition metals can lose different numbers of electrons from their d-orbitals, leading to various oxidation states. This is due to the presence of vacant d-orbitals that can participate in bonding. - **Conclusion**: Transition metals exhibit variable oxidation states. ### Step 4: Analyze Formation of Colored Ions - **Explanation**: The presence of unpaired electrons in transition metals allows them to undergo d-d transitions when they absorb certain wavelengths of light, resulting in the formation of colored ions. The specific color observed depends on the energy difference between the d-orbitals. - **Conclusion**: Transition metals form colored ions. ### Final Conclusion Based on the analysis: - (i) Paramagnetic behavior: Yes - (ii) Diamagnetic behavior: No - (iii) Variable oxidation states: Yes - (iv) Formation of colored ions: Yes Thus, the correct options are (i), (iii), and (iv). The only option that does not apply is (ii) diamagnetic behavior. ### Answer The correct answer is: **(i), (iii), and (iv)**. ---
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