14/10/2019 Tutor Test (Chemistry) 14/10/2019 4Comments by Gate Academy Welcome to your Tutor Test (Chemistry) You have 10 minutes to complete the test of 20 questions. Instructions 1. Answer ALL Questions. 2. Make sure you are prepared before you start the test. 3. Make sure you have a steady internet connection. 4. Do not attempt to reload the test page once you begin. 5. Fill the text field below with your correct details before you begin Full Name Email Address 1. What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen?[H=1, O=16] 54.0g 8.0g 36.0g 72.0g 2. Which of the following is NOT a halogen? astatine fluorine iodine silicon bromine 3. The electrolyte used in lead accumulator cell is Ammonium chloride paste Tetraoxosulphate(vi) acid solution Ammonium chloride solution Manganese(iv)oxide 4. When ΔH is negative, the reaction is said to be, Reversible Ionic Endothermic Exothermic Irreversible 5. Which of the following alloys contain Tin and Lead? steel bronze brass solder coinage metal 6. What term is used to describe an oxide whose aqueous solution turns blue litmus to red? Strong electrolyte Basic oxide Acid anhydride Amphoteric oxide 7. Dynamic equilibrium describes a situation where? Reaction gives back the reactant Reactants are converted to products Both forward and reverse reactions proceed at the same rate A concentration of reactants and product is equal 8. Which of the listed molecules has two lone pairs of electrons? water benzene ammonia carbon(iv)oxide hydrogen gas 9. When an atom gains an electron, it becomes A non-metal atom Positively charged Chemically inactive A cation An anion 10. Which of the following does NOT have the electronic structure of Argon? aluminium ion calcium ion sulphide ion chloride ion potassium ion 11. Substances which absorb water from the atmosphere without dissolving in them are said to be Anhydrous Deliquesence Hydrated Hygroscopic 12. When excess ammonia is added to an aqueous copper(ii)tetraoxosulphate(vi), a deep blue solution of copper(ii)tetraamine is formed. The type of bond in copper(ii)tetraamine is ionic bond van der waals coordinate covalent bond covalent bond hydrogen bond 13. Which of the following gives a yellow precipitate of a metallic derivative when reacted with ammoniacal silver trioxonitrate(v) at room temperature? propane ethanol ethanal butene propyne 14. An element Y has the electronic configuration 1s2 2s2 2p6 3s2 3p4 To what period does it belong to in the periodic table? 3 4 5 6 15. 15dm³ of a gas at s.t.p. in a tube was pressed by a piston whose pressure was increased to twice its original value at the same temperature. The volume of the gas in dm³ at this new pressure is 30.0dm³ 12.0dm³ 7.5dm³ 5.0dm³ 10.0dm³ 16. Which of the following is not a type of elements? Non Metals Metals Gases Metalloids 17. What property of hydrogen makes it suitable for filling balloons? Its flammability Its solubility Its tensile strength Its low density 18. The main constituents of petroleum are hydrocarbons solids gases alkanes alkynes 19. What is detergent? A liquid surfactant A liquid sovent A liquid solution A liquid soluble 20. Which of the following substances decompose when an electric circuit is passed through it? glucose solution tetra chloromethane dilute hydrochloric acid zinc rod You've successfully completed your test. Submit below.