Post-UTME Chemistry 2019 Objective — Question 4
Question 4 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2019 Objective paper, with the correct answer and a full explanation.
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Which of the following bonds exist in crystalline ammonium chloride (NH4Cl)?
- A. ionic and covalent
- B. ionic and co-ordinate
- C. ionic, covalent and co-ordinateCorrect
- D. covalent, co-ordinate and metallic
Explanation
NH4Cl contains N-H covalent bonds within the NH4+ ion, an N-H co-ordinate (dative) bond, and an ionic bond between NH4+ and Cl-, so all three types are present.
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