What is the formula of Silver nitrate?
Correct answer: C. AgNO3
- A. AgNO
- B. AgNO2
- C. AgNO3
- D. AgNO4
Explanation
Silver forms Ag+ and nitrate is NO3−, so charge balance gives the formula AgNO3. The likely distractor is AgNO2, which is silver nitrite and contains the nitrite ion NO2− rather than nitrate.
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About Reactions of Group I Elements
Group I elements have one valence electron, so their reactivity increases down the group as ionisation energy decreases. Their reactions with water, oxygen, hydrogen and halogens produce hydroxides, oxides, hydrides and halides, while the behaviour of lithium differs from the heavier metals because of its small ionic size.
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