Sindh MDCAT 2018 paper ( PART 8 ) 1. The phenomenon in which certain elements emit invisible radiations is called: Radioactivity Spectroscopy Gravimetry Chromatography 2. How many chain isomers are shown by C5H12 ? 4 3 2 5 3. Which one of the following is the pure carbon compound and used as reducing agent in industries Coal tar Coal gas Petroleum Coke 4. When electricity is passed through water in the presence of an acid oxygen is produced Hydrogen Carbon CO2 CO 5. The rate of a chemical reaction is directly proportional to the product of active masses of the reactants, it is referred to as: Active mass law Law of conservation of mass Law of conservation of energy Law of mass action 6. Which of the following reactions is NOT shown by Ketones? Reaction with HCN Reaction with Fehling solution Reaction with 2,4-dinitrophenyl-hydrazine Reaction with NaHSO3 7. The boiling point of water Is highest than other hydrides because *water molecules can form: 3 hydrogen bonds 2 hydrogen bonds 1 hydrogen bonds 4 hydrogen bonds 8. The Neutron was discovered by Thomson Goldstein Chadwick Rutherford 9. Which alkyl halide has the lowest reactivity for a particular alkyl group R-I R-Br R-F R-CI 10. The normal pH of blood is: 7.75 7.25 7.05 7.35 Loading … Pages: 1 2 3 4 5 6 7 8 9 10
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