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1911

A positive brown ring test indicates the presence of

  • A. NO 3
  • B. Fe 3+
  • C. SO 2-3
  • D. CU+
  • E. NO- 2
View Answer & Discuss (6) WAEC 1995
1912
Consider the reaction represented by the equation below: XO + YO → X + YO2 In the reaction, YO acts as
  • A. an acidic oxide
  • B. a basic oxide
  • C. a reducing agent
  • D. a weak base
  • E. an oxidizing agent
View Answer & Discuss (5) WAEC 1995
1913
Alums are classified as
  • A. simple salt
  • B. acid salts
  • C. anhydrous salts
  • D. double salts
  • E. basic salts
View Answer & Discuss (2) WAEC 1995
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1914
Sodium chloride cannot conduct electricity in the solid state because it
  • A. is a normal salt
  • B. is highly soluble in water
  • C. is an electrovalent compound
  • D. does not have any effect on litmus
  • E. does not contain mobile ions
View Answer & Discuss WAEC 1995
1915
What mass of copper will be deposited by the liberation of Cu2+ when 0.1F of electricity flows through an aqueous solution of a copper (ll) salt? [Cu = 64]
  • A. 64g
  • B. 32g
  • C. 12.8g
  • D. 6.4g
  • E. 3.2g
View Answer & Discuss (3) WAEC 1995
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