d and f BLOCK ELEMENTS

Which of the following elements is explicitly mentioned as forming a stable trihalide beyond Manganese (Mn) according to the text?

• Cr
• Ni
• Fe
• Cu

What is the highest oxidation state achieved by Vanadium (V) in its simple halides according to Table 4.5?

• +2
• +3
• +4
• +5

Based on the information in Table 4.5, which of the following is a general trend for the 3d transition metals beyond Manganese (Mn)?

• They only form trihalides
• They form stable tetrahalides
• They generally do not form stable trihalides
• They form stable hexahalides

Why does the text mention MnO₃F in the context of Manganese's +7 oxidation state?

• To show that MnF₇ is stable
• To prove that +7 is the highest state for Mn
• To show that the +7 state exists but not in simple binary halides
• To compare it with CrF₆

According to the text, what is a characteristic feature of fluorides regarding low oxidation states of transition metals?

• They stabilize low oxidation states
• They only form with high oxidation states
• They are stable in low oxidation states
• They are unstable in low oxidation states