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Standard XII

Chemistry

Zeff

A solid is ma...

Question

A solid is made up of two elements P and Q. Atoms Q are in hcp arrangement while atoms P occupy all the tetrahedral sites. What is the formula of the compound?

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Solution

Effective number of $Q \Rightarrow Z_{Q} = 6$ (In HCP arrangement)
Effective number of $P \Rightarrow Z_{P} = 12$ (No. of tetrahedral sites in HCP is 12)
Formula $= P_{12} Q_{6} = P_{2} Q$

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A solid is made up of two elements P and Q. Atoms Q are in hcp arrangement while atoms P occupy all the tetrahedral sites. What is the formula of the compound?

Effective number of Q⇒ZQ=6 (In HCP arrangement)Effective number of P⇒ZP=12 (No. of tetrahedral sites in HCP is 12)Formula =P12Q6=P2Q

Effective number of $Q \Rightarrow Z_{Q} = 6$ (In HCP arrangement)
Effective number of $P \Rightarrow Z_{P} = 12$ (No. of tetrahedral sites in HCP is 12)
Formula $= P_{12} Q_{6} = P_{2} Q$