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Chemistry JAMB Past Questions

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1846

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

  • A. 226
  • B. 220
  • C. 227
  • D. 222
View Answer & Discuss (5) JAMB 2017
1847

The shape of ammonia molecules is

  • A. trigonal pyramidal
  • B. octahedral
  • C. square planar
  • D. tetrahedral
View Answer & Discuss (3) JAMB 2017
1848

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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1849

Tin is unaffected by air at ordinary temperature due to its?

  • A. Low melting point
  • B. Weak electropositive character
  • C. High boiling point
  • D. White lustrous appearance
View Answer & Discuss (9) JAMB 2017
1850
Calculate the amount in moles of silver deposited when 9650C of electricty is passed through a solution of silver salt [= 96500 Cmol-1]
  • A. 0.05
  • B. 10.80
  • C. 10.00
  • D. 0.10
View Answer & Discuss (9) JAMB 2017
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