Q1. Which transition metal ion has the electronic configuration [Ar] 3d 3 ?A. Fe 3+B. Cr 3+C. V 2+D. Mn 2+
Q2. What is the geometry of the [Fe(CN) 6 ] 4- ion?A. TetrahedralB. Square planarC. OctahedralD. Linear
Q3. Which of the following is NOT a use of lanthanoids?A. Television phosphorsB. Structural building materialC. Petroleum cracking catalystsD. Lighter flints
Q4. Which actinoid exhibits the highest oxidation state of +7?A. Thorium (Th)B. Neptunium (Np)C. Uranium (U)D. Actinium (Ac)
Q8. Which catalyst is used in the Wacker process for oxidation of ethene to acetaldehyde?A. V 2 O 5B. PdCl 2C. NiD. Fe
Q9. Which of the following is a correct pair of colored ion and its color?A. Cu 2+ – BlueB. Fe 3+ – GreenC. Ni 2+ – YellowD. Zn 2+ – Pink
Q10. What is the geometry of the [Co(NH 3 ) 6 ] 3+ ion?A. TetrahedralB. Square planarC. OctahedralD. Linear