## MCQ (Single Correct Answer)

Which from following is NOT an example of amorphous solid?

Calculate the molar mass of metal having density $$9.3 \mathrm{~g} \mathrm{~cm}^{-3}$$ that forms simple cubic unit cell. $$\left[\mathrm{a}^3 \cdot \...

Find the radius of an atom in fcc unit cell having edge length $$405 \mathrm{pm}$$.

Which formula is used to calculate edge length in bcc structure?

What is atomic mass of an element with $$\mathrm{BCC}$$ structure and density $$10 \mathrm{~g} \mathrm{~cm}^{-3}$$ having edge length $$300 \mathrm{~p...

What is the number of unit cells present in a cubic pack crystal lattice having 4 atoms per unit cell and weighing $$0.60 \mathrm{~g}$$ (molar mass $$...

Find the radius of an atom in fcc unit cell having edge length $$393 \mathrm{pm}$$.

Calculate the number of atoms present in unit cell of an element having molar mass $$190 \mathrm{~g} \mathrm{~mol}^{-1}$$ and density $$20 \mathrm{~g}...

Which of the following characteristic properties is NOT true for crystalline solid?

Calculate the edge length of unit cell of metal which crystallises to bec structure.
(Radius of metal atom $$=173 \mathrm{~pm}$$ )

What is the total number of Bravais lattices present for different crystal systems?

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...

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

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...

Which from following metal has ccp crystal structure?

Find the radius of metal atom in simple cubic unit cell having edge length 334.7 pm?

A compound made of elements $$\mathrm{A}$$ and $$\mathrm{B}$$ form fcc structure. Atoms of A are at the corners and atoms of B are present at the cent...

What is the packing efficiency of silver metal in its unit cell?

What is the number of unit cells when one mole atom of a metal that forms simple cubic structure?

What is the total number of atoms in BCC crystal lattice having $$1.8 \times 10^{20}$$ unit cells?

What is the percentage of unoccupied volume in BCC structure?

What is the density of an element (At mass 100 g mol$$^{-1}$$) having BCC structure with edge length 400 pm?

What is the percentage efficiency of packing in BCC structure?

An element with simple cubic close structure has edge length of unit cell $$3.86 ~\mathop A\limits^o$$. What is the radius of atom?

What is the volume of unit cell of a metal (at. mass $$25 \mathrm{~g} \mathrm{~mol}^{-1}$$ ) having $$\mathrm{BCC}$$ structure and density $$3 \mathrm...

Which from following instruments is used to determine the crystal structure?

How many total voids are present in 1 mole of compound that forms hcp structure?

What is the total number of Bravais lattices present in seven types of crystal system?

What is molar mass of metal with BCC structure having density 10 g cm$$^{-3}$$ and edge length 200 pm?

What is the number of unit cells present in 3.9 g of potassium if it crystallizes in BCC structure?

What type of crystal structure from following has 52.36% packing efficiency?

An element (molar mass 180 ) has BCC crystal structure with density $$18 \mathrm{~g} \mathrm{~cm}^{-3}$$. What is the edge length of unit cell?