SINDH MDCAT 2019 ( PART 7) 1. The colour of transition metal complexes is due to: Loss of s-electrons d-d transition of electrons Paramagnetic nature of transition elements Refraction phenomenon 2. Determine the significant figures in 0.0085 1 4 3 2 3. Orbitals having same energy are called: Valence orbitals Degenerate orbitals Sub-orbitals Hybrid orbitals 4. Write the chemical name of the given structure: 4-ethyl-2,5-hexadiyne 3-ethyl-1,4-hexadiyne 3-ethyl-1,4-hexadiene 3-ethyl-2,5-hexachyne 5. Copper (Cu, Z=29) is a: d3 system with respect to electronic configuration d1 system with respect to electronic configuration d7 system with respect to electronic configuration d10 system with respect to electronic configuration 6. The carbon number of gasoline is: C5 -C6 C5 -C10 C6 -C7 C12 -C15 7. The oxidation number of Br in Br2 +1 -2 0 -1 8. The number of moles of CO2 which contain 8.0 g of oxygen Is: 0.50 0.25 1.0 0.75 9. Hydrogen bonds are represented by: Full bond Partial charges Dative bonds Dotted bonds 10. Effusion of gases take place through a hole with: Slit like dimensions Molecular dimensions Hole dimensions Infinite dimensions Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
