d and f BLOCK ELEMENTS

What type of catalyst is formed by the combination of TiCl4 and Al(CH3)3?

• Fischer-Tropsch catalyst
• Haber catalyst
• Ziegler catalyst
• Wacker catalyst

Which compound catalyzes the oxidation of SO2 in the manufacture of sulphuric acid?

• Fe2O3
• MnO2
• V2O5
• CrO3

Which alloy is used to make contemporary UK 'silver' coins?

• Pure silver
• Stainless steel
• Cu/Ni alloy
• Aluminium bronze

What material are contemporary UK 'copper' coins actually made of?

• Pure copper
• Copper-coated aluminium
• Copper-coated steel
• Bronze alloy

What is the significance of the text's comparison of magnetic susceptibility values between lanthanoids and actinoids?

• It shows actinoids are non-magnetic.
• It proves lanthanoids are more complex.
• It highlights a quantitative difference despite a similar trend.
• It indicates identical electronic structures.