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Chemistry - Solid State Question with Solution | TestHub

ChemistrySolid StateCubic CrystalsHard2 minPYQ_2021

ChemistryHardsingle choice

An element is found to crystallize with BCC structure having density $8.55 g cm^{- 3}$ . What is the edge length of unit cell? (At. mass of element $= 93$ )

Options:

Answer:

Solution:

$d = \frac{ZM}{N _{A} \cdot a ^{3}} a^{3} = \frac{ZM}{d \cdot N _{A}} [Z = 2 for BCC] = \frac{2 \times 93}{8.55 \times 6 \times 1 0 ^{23}} = 3.61 \times 1 0^{- 23} a = (3.61 \times 1 0^{- 23})^{1/3} cm$

Stream:MHT_CETSubject:ChemistryTopic:Solid StateSubtopic:Cubic Crystals

⏱ 2mℹ️ Source: PYQ_2021

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