The chemical formula of sodium hypochlorite is________________?
Correct answer: A. NaCLO
- A. NaCLO
- B. NaClO2
- C. NaClO3
- D. NaClO4
Explanation
Sodium hypochlorite contains the hypochlorite ion, ClO−, so its formula is NaClO. The oxyanion charge is balanced by one Na+ ion. Students may choose NaClO2 or NaClO3 by confusing hypochlorite with chlorite or chlorate, which contain two and three oxygen atoms respectively.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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