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Chemistry Past Questions

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4126

Using the metal activity series, the metal that can liberate hydrogen gas from steam is?

  • A. iron
  • B. copper
  • C. tin
  • D. lead
View Answer & Discuss (9) JAMB 2022
4127

An organic compound with fishy smell is likely to have a general formula?

  • A. RCONHR\(^1\)
  • A. RCONH\(_2\)
  • C. RNH\(_2\)
  • D. RCOR\(^1\)
View Answer & Discuss (4) JAMB 2022
4128

N\(_2\)O\(_4\) ⇔ 2NO\(_2\)          (Δ = -ve)

From the reaction above, which of these conditions would produce the highest equilibrium yield for N\(_2\)O\(_4\)?

  • A. Low temperature and high pressure
  • B. Low temperature and low pressure
  • C. high temperature and low pressure
  • D. high temperature and high pressure
View Answer & Discuss (52) JAMB 2022
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4129

Zn + 2HCL → ZnCl\(_2\) + H\(_2\) 

What happens to zinc in the above reaction?

  • A. oxidized
  • B. a reactant
  • C. reduced
  • D. a metal
View Answer & Discuss (5) JAMB 2022
4130

An organic functional group which can likely decolorize ammoniacal silver nitrate is?

  • A. alkene
  • B. alkane
  • C. alkyne
  • D. alkanol
View Answer & Discuss (2) JAMB 2022
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