BALOCHISTAN MDCAT PAPER 2022 ( PART 11 ) 1. Why a reaction Is reversible? Products are stable Reactants are reactive Products are reactive Reactants are stable 2. Amorphous solids Can possesses small regions of orderly arrangement of atoms Have sharp Melting point Have perfect arrangement of atoms Undergo clean cleavage when cut with knife 3. Which of the functional group are present in ethyl acetate? Carboxyl group Aldehyde group Ester group Ether group 4. Which of the following compounds will react with Tollens reagent to give metallic silver? Methanal Ethyl alcohol Acetone Acetic Acid 5. How a catalyst work by Increasing the activation energy Increasing the concentration Increasing the proportion of particles with energy greater than the activation energy Increasing the frequency of collisions 6. Which of the following isomer of pentane have least melting and boiling points? Neo-Pentane Iso-Pentane n-Pentane 2-Methyl butane 7. Rate of reaction when the reactants concentration is taken as unity is called Ideal rate constant Specific rate constant Molecularity Arrhenius constant 8. Dry heating of calcium acetate gives which of the following? Acetone Acetaldehyde Ethane Acetic acid 9. The volume of a given mass of a gas according to Charles law should be zero at: 25 °C 100 °C 273 °C -273 °C 10. Which of the following is Lucas reagent? Both HCl and ZnCl2 HCI Aluminum chloride ZnCl2 Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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