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Neco Chemistry Past QuestionsQuestion 116:If two metallic ions of the same concentration migrate to a graphite cathode, the one that would be preferentially discharged is that with the ____________ A. Greater stability in solution B. Lower electrical charge C. Smaller mass D. Stronger tendency to accept electrons E. Stronger tendency to lose electrons. Question 117:A device used in the laboratory for intermittent production of gases without heating is ____________ A. Aspirator B. Delivery tube C. Fume cupboard D. Kipp’s apparatus E. Muller counter Question 118:What type of bond holds hydrogen fluoride molecules together when forming larger aggregate? A. Covalent B. Dative C. Hydrogen D. Ionic E. Metallic Question 119:The high boiling point of hydrogen fluoride can be explained in terms of ____________ A. Covalent bonds. B. Dative bonds. C. Dipole-dipole bonds D. Electrovalent (ionic) bonds. E. Hydrogen bonds. Question 120:The action of zinc on an acid produces ____________ A. Chlorine B. Hydrogen C. Nitrogen D. Sulphur E. Water vapour. |
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