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Chemistry Past Questions and Answers

Neco Chemistry Questions

Question 131:
Two elements X and Y with electronic configurations 2,8,2 and 2,8,7 respectively, are likely to combine by ____________ bonding
  • A Covalent
  • B Dative
  • C Electrovalent
  • D Hydrogen
  • E Metallic
View Answer & Explanation
Question 132:
The Ideal Gas Law is expressed mathematically as ____________
  • A P1 /T1 = P2/T2
  • B P1/V1 = P2V2
  • C PV =nRT
  • D PV =KT
  • E V1/T1 = V2/T2
View Answer & Explanation
Question 133:
Non-polar molecules are held together by ____________
  • A Co-ordinate bond
  • B Covalent bond
  • C Electromagnetic force
  • D Hydrogen bond
  • E Van der Waals forces
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Question 134:
Which of the following salt solutions will have a pH greater than 7?
  • A NaCl
  • B NaHSO4
  • C Na2CO4
  • D Na2SO4
  • E MgCl2
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Question 135:
The relationship between equilibrium constant and free energy change is represented as ____________
  • A δ G ° =-nFE °
  • B δG °-RT ln K
  • C δ G °= + RT In k
  • D δG ° = δH – T S
  • E H=TδS
View Answer & Explanation