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4016

Aqueous solutions of zinc chloride, calcium chloride iron (lII) tetraoxosulphate (VI) and lead (II) trioxonitrate (IV) are contained in four separate bottles whose labels have been lost. Using aqueous ammonia solution only, show how you would identify the content of each bottle.

View Answer & Discuss WAEC 1988
4017

Give the common name for the following compound (CH\(_{3}\))\(_{2}\) CH CH\(_{2}\) -Br

  • A. Isobutyl bromide
  • B. Methyl bromide
  • C. propyl bromide
  • D. Butyl bromide
View Answer & Discuss (17) JAMB 2021
4018

The enzyme that converts glucose to ethyl alcohol is?

  • A. maltase
  • B. zymase
  • C. Diatase
  • D. Invertase
View Answer & Discuss (3) JAMB 2021
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4019

The scientist who stated that matter can be converted into energy is? 

  • A. Boyle
  • B. Lavoiser
  • C. Avogadro
  • D. Einstein
View Answer & Discuss (3) JAMB 2021
4020

What is the IUPAC name for the following compound? HC\(\equiv\)CCH\(_{3}\)

  • A. Acetylene
  • B. Methyl acetylene
  • C. Butanol
  • D. Decanoic acid
View Answer & Discuss (10) JAMB 2021
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