MHT CET 2023 10th May Morning Shift | Solid State Question 77 | Chemistry

Calculate the molar mass of an element with density $$2.7 \mathrm{~g} \mathrm{~cm}^{-3}$$ that forms fcc structure. $$\left[\mathrm{a}^3 \cdot \mathrm{N}_{\mathrm{A}}=40 \mathrm{~cm}^3 \mathrm{~mol}^{-1}\right]$$

$$112 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$54 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$27 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$78 \mathrm{~g} \mathrm{~mol}^{-1}$$

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Identify the CORRECT decreasing order of melting point of cluster of sodium atoms depending on size.

Cluster of $$10^3$$ atoms $$>$$ cluster of $$10^4$$ atoms $$>$$ Bulk sodium

Bulk sodium $$>$$ cluster of $$10^4$$ atoms $$>$$ Cluster of $$10^3$$ atoms

Cluster of $$10^4$$ atoms $$>$$ Cluster of $$10^3$$ atoms $$>$$ Bulk sodium

Bulk sodium $$>$$ cluster of $$10^3$$ atoms $$>$$ Cluster of $$10^4$$ atoms

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Calculate the molar mass of an element having density $$21 \mathrm{~g} \mathrm{~cm}^{-3}$$ that forms fcc unit cell $$\left[\mathrm{a}^3 \cdot \mathrm{N}_{\mathrm{A}}=36 \mathrm{~cm}^3 \mathrm{~mol}^{-1}\right]$$

$$292.00 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$189.00 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$140.00 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$108.00 \mathrm{~g} \mathrm{~mol}^{-1}$$

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Which from following metal has ccp crystal structure?

$$\mathrm{Cu}$$

$$\mathrm{Zn}$$

$$\mathrm{Mg}$$

$$\mathrm{Po}$$

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