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An element, E, has the electronic configuration 1s22s22p63s2p3. The reaction of E with a halogen...

Chemistry
JAMB 1993
An element, E, has the electronic configuration 1s22s22p63s2p3. The reaction of E with a halogen X can give?
  • A. EX3 and EX5
  • B. EX3 only
  • C. EX5 only
  • D. EX2 and EX3
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Correct Answer: Option A
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now