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Chemistry Past Questions

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3801

Proteins in acid solution undergo?

  • A. Substitution
  • B. Fermentation
  • C. Hydrolysis
  • D. Polymerisation
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3802

The general formula for the Alkanals is?

  • A. R\(_2\)CO
  • B. RCHO
  • C. ROH
  • D. RCOOR
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3803

When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?

  • A. Bipolar
  • B. Negatively charged
  • C. Positively charged
  • D. Neutral
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3804

When a solid substance disappears completely as a gas on heating, the substance is said to have undergone?

  • A. Sublimation
  • B. Crystallization
  • C. Distillation
  • D. Evaporation
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3805

An electron can be added to a halogen atom to form a halide ion with?

  • A. 8 valence electrons
  • B. 7 valence electrons
  • C. 2 valence electrons
  • D. 3 valence electrons
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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208