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3801

Aluminum hydroxide is used in the dyeing industry as a?

  • A. Dye
  • B. Dispersant
  • C. Salt
  • D. Mordant
View Answer & Discuss (2) JAMB 2020
3802

The most important element on the earth's crust is?

  • A. Nitrogen
  • B. Hydrogen
  • C. Oxygen
  • D. Fluorine
View Answer & Discuss (4) JAMB 2020
3803

To obtain pure carbon(ii)oxide from its mixture with carbon(iv)oxide, the mixture should be?

  • A. Passed over heated copper(ii)oxide
  • B. Bubbled through water
  • C. Bubbled through conc H\(_2\)SO\(_4\)
  • D. Bubbled through conc NAOH
View Answer & Discuss (4) JAMB 2020
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3804

The periodic table is an arrangement of elements according to their? 

  • A. Oxidation number
  • B. Atomic number
  • C. Mass number
  • D. Number of neutrons
View Answer & Discuss (2) WAEC 2019
3805

A solid with higher melting and boiling points is likely to be?

  • A. Covalent compound
  • B. A Dative compound
  • C. An Electrovalent compound
  • D. A Non-metal
View Answer & Discuss WAEC 2019
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