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3186
The ideal gas laws and equations are true for all gases at
  • A. low pressures and lower temperatures
  • B. low temperatures and high pressures
  • C. high pressures and high temperatures
  • D. low pressure and high temperatures
View Answer & Discuss (1) JAMB 2017
3187
When ΔH is negative, a reaction is said to be
  • A. endothermic
  • B. exothermic
  • C. reversible
  • D. ionic
View Answer & Discuss (3) JAMB 2017
3188

\(^{226}_{88}Ra\) → \(^x_{86}Rn\) + alpha particle

  • A. 226
  • B. 220
  • C. 227
  • D. 222
View Answer & Discuss (5) JAMB 2017
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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3189

The shape of ammonia molecules is

  • A. trigonal pyramidal
  • B. octahedral
  • C. square planar
  • D. tetrahedral
View Answer & Discuss (3) JAMB 2017
3190

The mass of silver deposited when a current of 10A is passed through a solution of silver salt for 4830s is – (Ag = 108 F = 96500(mol-1)

  • A. 54.0g
  • B. 27.0g
  • C. 13.5g
  • D. 108.0g
View Answer & Discuss (4) JAMB 2017
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