Q.
Sodium sulphide is an ionic compound and written as (by showing its charges)
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a
Na-2 S2-
b
Na+2 S2-
c
Na20S2-
d
Na+2 S0
answer is B.
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Detailed Solution
Valence electrons in Na = ICharge on Na = + 1.Valence electrons in S = 6.Charge on S = -2So, sodium sulphide (with its charges) is written as (Na)2 S2-
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