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