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1
JEE Main 2021 (Online) 16th March Morning Shift
Numerical
+4
-1
Out of Syllabus
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A certain element crystallises in a bcc lattice of unit cell edge length 27$$\mathop A\limits^o $$. If the same element under the same conditions crystallises in the fcc lattice, the edge length of the unit cel in $$\mathop A\limits^o $$ will be ____________. (Round off to the Nearest Integer).

[Assume each lattice point has a single atom]

[Assume $$\sqrt 3 $$ = 1.73, $$\sqrt 2 $$ = 1.41]
Your input ____
2
JEE Main 2021 (Online) 26th February Evening Shift
Numerical
+4
-1
Out of Syllabus
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The number of octahedral voids per lattice site in a lattice is _________. (Rounded off to the nearest integer)
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3
JEE Main 2021 (Online) 25th February Evening Shift
Numerical
+4
-1
Out of Syllabus
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The unit cell of copper corresponds to a face centered cube of edge length 3.596 $$\mathop A\limits^o $$ with one copper atom at each lattice point. The calculated density of copper in kg/m3 is ___________. [Molar mass of Cu : 63.54 g; Avogadro Number = 6.022 $$\times$$ 1023]
Your input ____
4
JEE Main 2021 (Online) 24th February Morning Shift
Numerical
+4
-1
Out of Syllabus
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The coordination number of an atom in a body-centered cubic structure is _______.
[Assume that the lattice is made up of atoms.]
Your input ____
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