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Chemistry Past Questions

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3816

What is the percentage by mass of H in  CH\(_3\)COOH ?

  • A. 1.7%
  • B. 5.0%
  • C. 6.7%
  • D. 7.1%
View Answer & Discuss (13) WAEC 2019
3817

Which of the following compounds has coordinate bonds in its structure?

  • A. Al\(_2\)Cl\(_6\)
  • B. MgCl\(_2\)
  • C. AgCl
  • D. NaCl
View Answer & Discuss (2) WAEC 2019
3818

The name of the compound CH\(_3\)C(CH\(_3\))\(_2\)CH\(_2\)CH\(_2\)CH\(_3\)

  • A. 2 - methyl butane
  • B. 2,2 - dimethyl butane
  • C. 2 - methyl pentane
  • D. 2,2 - dimethyl pentane
View Answer & Discuss (6) WAEC 2019
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3819

The properties of a good primary standard solution include the following except?

  • A. High molecular mass
  • B. low molecular mass
  • C. high degree of purity
  • D. readily available
View Answer & Discuss (4) WAEC 2019
3820

What is the solubility of a salt X at 25ºC if the saturated solution of the salt contains 0.28g in 100cm\(^3\) of the solution in mol\dm\(^3\)? 

[ X = 56.0g ]

  • A. 0.05
  • B. 0.10
  • C. 2.60
  • D. 2.80
View Answer & Discuss WAEC 2019
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