Hello and Welcome to SSCE (WAEC and NECO) Practice Test - Chemistry 1. You will attempt 20 randomly generated objective questions for 10 minutes. 2. Don't guess the answers. Leave answer blank if not sure. Incorrect answers attract -1 (negative one) and it is cumulative. 3. If time allowed elapsed, your quiz ends immediately and scores will be displayed and ranked. 4. Your performance in each of the questions attempted alongside step-by-step solutions to attempted questions will be displayed on the screen at the end of the assessment. 5. Fill the form below and click on the Next button to Begin Full Name (Surname First): Location: Rare gases are stable because they A. are chemically active. B. contains equal number of protons and neutrons. C. contains more electrons than protons. D. has octet structures. A C B DThe reaction that takes place at the cathode when an aqueous solution of NaCI is electrolysed using carbon electrodes is A. 2H+ + 2e ⟶ H2(g) B. Na+ (aq) + e ⟶ Na(s) C. 4OH ⟶ 2H2O2(l) +O2(g) +4e- D. 2Cl- ⟶ Cl2(g) + 2e- A B D CWhich of the following statements about fine chemical is correct? It A. is injurious to health. B. has low degree of purity. C. is produced in relatively small amount. D. can be stored for a long time. D C A BWhich of the following acids would readily react with CaCO3, to liberate CO2? A. CH3COOH. B. H2SO4. C. H2SO3. D. HNO3 D A B CWhich of the following raw materials is used in a plastic industry? A. Ethene. B. Methane. C. Calcium. D. Hydrogen C B D AWhat is the product CxHy in the following equation? C10H2 -—-> C8H18+ CxHy A. Butene B. Octane C. Ethene D. Decane C D A BWhich of the electrons in the following orbital will experience the greatest nuclear attraction? A. 1s electron of helium B. 1s electron of potassium C. 2s electron of boron D. 2s electron of carbon D B C AWhich of the following arrangements represents the correct order of electronic energy level? A. 1s 2p 2s 3p 3s 3d 4s. B. 1s 2s 2p 3s 3p 3d 4s. C. 1s 2s 2p 3s 3p 4s 3d. D. 1s 2s 3s 2p 3p 4s 3d. D B C AWhich of the following statements is correct? A. Atomic size decreases down the group. B. Atomic size increases across the period. C. Anions are smaller than the parent atom. D. Cations are smaller than the parent atom. A D B CThe aqueous solution which has pH > 7 is A. FeCI3(aq). B. CUSO4(aq) C. KNO3aq D. Na2CO3aq C D B AThe key factor to be considered in sitting a chemical industry is A. favourable climatic condition B. the availability of space to store raw materials C. its nearess to other indistrial establishments D. its nearess to the source of raw materials C D B AThe alloy used extensively in the building industry is A. steel B. bronze C. duralumin D. type metal A B C DWhich of the following electron transitions results in the emission of energy? A. 3p to 3s B. 3p to 4p C. 2s to 2P D. 1s to 2s. D A B CWhich of the following statements about thermoplastic material is correct? They A. do not melt on heating. B. harden on heating. C. decompose on heating. D. soften and melt on heating B A C DWhich of the following instruments is used in detecting the presence of radiation? A. Cathode ray tube. B. Geiger-Muller counter. C. Mass spectrometer. D. X-ray tube. A C D BAn atom of an element X gains two electrons. The symbol of the ion formed is A. X+ B. X2+ C. X2- D. X B A C DWhich of the following are required in an experiment to determine the enthalpy of solution of anhydrous CuSO4? I. Mass if the anhydrous CuSO4 II Volume of water in which the CuSO4 is dissolved III. Initial temperature of water IV. Final temperature of the solution A. I and II only B. III and IV only C. II, III and IV only D. I. II, III and IV D A C BThe element with electron configuration 1s2 2s2 2p6 3s2 3p1 belongs to ____ A. s-block, period 3, group 1. B. p-block, period 3, group 2. C. s-block, period 3, group 3. D. p-block, period 3, group 3. B C A DThe separation of petroleum fractions depends on the differences in their A. melting points. B. molar masses. C. solubilities. D. boiling points. C A B DThe formula of the compound formed between a trivalent metal, M and a divalent non-metal, V is A. M2Y3 B. M3Y2 C. MY D. M3Y C B A D21 out of 20Are you ready to submit? You have enough time to attempt skipped questions and review your answers by clicking the Previous Button, else click the Submit Quiz button to see your results! Categories: 0 Comments Leave a Reply Cancel reply You must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.