Consider the two elements P and Q. If P has valency 2 electrons in their outer most shell Q has 6 electrons in their outermost shell, then formula of compound is
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a
PQ
b
P2Q
c
P2Q3
d
PQ2
answer is A.
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Detailed Solution
Valence electrons in P = 2Valence electrons in Q = 6P−2e−→P2+Q+2e−→Q2−SO,P2++Q2−→PQSince, both show a valency of 2.So, the formula for the compound will be PQ.