CHEMISTRY POST UTME QUESTIONS & ANSWERS HomePOST UTME/POST JAMB Past Question & AnswersCHEMISTRY POST UTME QUESTIONS & ANSWERS Practice this CHEMISTRY POST UTME exam questions and answers Our experts have provided correct answers to these questions. 0% CHEMISTRY POST UTME (APP) CHEMISTRY POST UTME CHEMISTRY POST UTME Practice with our Post UTME CBT for Universities, Polytechnics, College of Agriculture, College of Medicine, College of Technology and College of Education and pass your examination. 1 / 50 Category: CHEMISTRY POST UTME Esterification of propane 1, 2, 3-triol and unsaturated higher carboxylic acids will produce soap fats alkanols methyl propanoate 2 / 50 Category: CHEMISTRY POST UTME The IUPAC names for the compounds CH3COOH and CH2 = CH2 are respectively; methanoic acid and ethylene acetic acid and ethane ethanoic acid and ethene acetic acid and ethene 3 / 50 Category: CHEMISTRY POST UTME The following uses radioactive isotopes except for tracing reaction paths sterilization of medical equipment determining equilibrium positions dating elements 4 / 50 Category: CHEMISTRY POST UTME Organic Chemistry is the branch of Chemistry that deals with ------- and ------ Carbon & Carbon Hydrogen & oxygen Carbon & Sulphur Carbon & Hydrogen 5 / 50 Category: CHEMISTRY POST UTME The metal extracted from cassiterite is sodium tin copper calcium 6 / 50 Category: CHEMISTRY POST UTME The movement of liquid molecules from the surface of the liquid to the gaseous phase above it is known as Zig Zag Motion evaporation liquefaction Brownian motion 7 / 50 Category: CHEMISTRY POST UTME In the Periodic Table, the elements that lose electrons most readily belong to group IIIA group VIIA group IIA group IA 8 / 50 Category: CHEMISTRY POST UTME An amphoteric oxide is an amorphorous oxide of a non-metal amorphorous oxide of a metal Oxide that is insoluble in water Oxide that behaves as a base as well as an acid 9 / 50 Category: CHEMISTRY POST UTME A gaseous mixture of 80.0g of oxygen and 56.0g of nitrogen has a total pressure of 1.8atm. The partial pressure of oxygen in the mixture is 0.8atm 1.2atm 1.0atm 1.4atm 10 / 50 Category: CHEMISTRY POST UTME The principal constituents of natural gas is methane butane ethane propane 11 / 50 Category: CHEMISTRY POST UTME Element P, Q, R and S have 6, 11, 15 and 16 electrons respectively, therefore, Q will form an electrovalent bond with S R will form an electrovalent bond with S P will form an ionic bond with R Q will form a covalent bond with S 12 / 50 Category: CHEMISTRY POST UTME Copper metal dissolves in concentrated trioxonitrate (v) acid with the resultant evolution of CO2 SO2 CO NO2 13 / 50 Category: CHEMISTRY POST UTME The carbon atoms on ethane are SP hybridized SP3 hybridised Sp2 hybridised SP2d hybridized 14 / 50 Category: CHEMISTRY POST UTME Cotton is almost pure cellulose protein starch animal fibre 15 / 50 Category: CHEMISTRY POST UTME The molecular formula of a common organic laboratory anesthetic is CHCl3 CHI3 CHF3 CCl4 16 / 50 Category: CHEMISTRY POST UTME Which of the following gases can be collected by the method of downward delivery? ammonia chlorine oxygen hydrogen 17 / 50 Category: CHEMISTRY POST UTME Which of the following halogens is the most reactive? Br2 I2 Cl2 F2 18 / 50 Category: CHEMISTRY POST UTME The major source of oxides of nitrogen is from the burning of fuel wood chlorofluorocarbons coal 19 / 50 Category: CHEMISTRY POST UTME Equilibrium is sad to be attained in a reversible reaction when all the reactants have been used up all the products have been formed the rate of forward and backward reactions are equal there is no further change in temperature 20 / 50 Category: CHEMISTRY POST UTME Palm wine turns sour with time because the sugar content is converted into alcohol microbiological activity results in the production of organic acids within it. it is commonly adulterated by the tappers and sellers the CO2 formed during the fermentation process has a sour taste 21 / 50 Category: CHEMISTRY POST UTME Given that the molecular mass of iron is 56 and that of oxygen is 16, how many moles of iron (III) oxide will be contained in 1kg of the compound? 6.25moles 25moles 12.5moles 0.625moles 22 / 50 Category: CHEMISTRY POST UTME Pauli exclusion principle is related to quantum numbers of electrons collision theory of reactions rate reversibility of equilibrium reactions electronegativity values of elements 23 / 50 Category: CHEMISTRY POST UTME What weight of sodium hydroxide is required to make 500cm3 of 0.2M solution? 40g 10g 4g 20g 24 / 50 Category: CHEMISTRY POST UTME Which quantum number divides shells into orbitals? Principal spin magnetic azimuthally 25 / 50 Category: CHEMISTRY POST UTME The percentage of water of crystallization in ZnSO4. 7H2O is 44% 33% 55% 87% 26 / 50 Category: CHEMISTRY POST UTME A mixture of sugar and sulphur can be separated by evaporation, dissolution in water and filtration dissolution in water, evaporation and filtration filtration, evaporation and dissolution in water dissolution in water, filtration and evaporation 27 / 50 Category: CHEMISTRY POST UTME Which of the following types of reactions takes place between C2H4 and the halogens? Addition Oxidation polymerization Substitution 28 / 50 Category: CHEMISTRY POST UTME Which of the following is needed to produce a slag during the extraction of iron in the blast furnace? carbon cryolite sulphur limestone 29 / 50 Category: CHEMISTRY POST UTME Calcium atom ionizes by gaining two electrons losing two electrons sharing two electrons gaining two proton 30 / 50 Category: CHEMISTRY POST UTME 0.499g of CuSO4.XH2O when heated to constant weight gave a residue of 0.346g. What is the value of X? 5.0 4.0 3.0 2.0 31 / 50 Category: CHEMISTRY POST UTME The greenhouse effect is a climatic condition associated with the presence of excess NH3 NO H2S CO2 32 / 50 Category: CHEMISTRY POST UTME Catalytic hydrogenation of benzene produces an aromatic hydrogenation cyclohexane margarine benzene 33 / 50 Category: CHEMISTRY POST UTME Alkanals can be differentiated from alkanones by reaction with Tollen’s reagent 2, 4 – dinitrophenylhydrazine hydrogen cyanide sodium hydrogen sulphite 34 / 50 Category: CHEMISTRY POST UTME Which of the following substances increases in mass when heated in air? copper (ii)oxide magnessium ribon sodium chloride iodine crystals 35 / 50 Category: CHEMISTRY POST UTME The greenhouse effect is a climatic condition associated with the presence of excess H2S CO2 NO NH3 36 / 50 Category: CHEMISTRY POST UTME A current of 4.0 amperes was passed through copper (II) tetraoxosulphate (IV) solution for one hour using copper electrodes. What was the mass of copper deposited? (Cu =64, IF = 96500C) 6.4g 4.8g 3.2g 96 37 / 50 Category: CHEMISTRY POST UTME Which of the following is not a member of the homologous series of the paraffins? C24H48 C3H8 C5H12 C15H32 38 / 50 Category: CHEMISTRY POST UTME 3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 250cm3 standard flask.25cm3 of this solution required 40.00cm3 of 0.01M HCl for neutralization. What is the percentage by weight of k2CO3 in the mixture? (k = 39, O = 16, C = 12) 89 92 82 72 39 / 50 Category: CHEMISTRY POST UTME An element X forms the following compounds with chlorine: XCl4, XCl3, XCl2. This illustrate the law of definite proportions law of chemical proportions law of multiple proportions law of conservation of mass 40 / 50 Category: CHEMISTRY POST UTME The following are uses of sulphur except manufacture of tetraoxosulphate (VI) acid manufacture of dyes vulcanization of rubber coating of steel to prevent rusting 41 / 50 Category: CHEMISTRY POST UTME Which of the following is an acidic salt? CH3CO2Na NaHSO4 Na2S Na2SO4 42 / 50 Category: CHEMISTRY POST UTME The following are uses of sulphur except manufacture of tetraoxosulphate (VI) acid coating of steel to prevent rusting vulcanization of rubber manufacture of dyes 43 / 50 Category: CHEMISTRY POST UTME Lucas reagent is used to test for alkanes amines alkanoic acids alkanols 44 / 50 Category: CHEMISTRY POST UTME The oxidation number of chlorine is +1in NaClO KClO3 Cl2O7 ZnCl2 45 / 50 Category: CHEMISTRY POST UTME Which of the following properties increases down a group in the Periodic Table electron affinity electronegativity ionization energy atomic radius 46 / 50 Category: CHEMISTRY POST UTME Organic molecules that have the suffix-ene are unsaturated hydrocarbons that have a triple bond a single bond double bond an ionic bond 47 / 50 Category: CHEMISTRY POST UTME At 25oC and 1atm, a gas occupies a volume of 1.50dm3. What volume will it occupy at 100 oC and 1atm? 6.00dm3 18.80dm3 60.0dm3 1.88dm3 48 / 50 Category: CHEMISTRY POST UTME The weakest attractive force that can be observed between two molecules is van der waals forces covalent ionic coordinates 49 / 50 Category: CHEMISTRY POST UTME When a solution of silver (I) nitrate is saturated with hydrogen sulphide, a black precipitate forms which is PbS HNO3 Ag2S H2S 50 / 50 Category: CHEMISTRY POST UTME 0.0075 mole of calcium trioxocarbonate (iv) is added to 0.015 mole of a solution of HCl. The volume of gas evolved at S.T.P is 224cm3 112cm3 100cm3 168cm3 Your score is 0% Restart quiz