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