Packing Efficiency
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CHXII01:THE SOLID STATE

318906 Sodium metal crystallises as a body centred cubic

1 \(9.312 \times 10^{-7} \mathrm{~cm}\)
2 \(1.857 \times 10^{-8} \mathrm{~cm}\)
3 \(2.371 \times 10^{-7} \mathrm{~cm}\)
4 \(3.817 \times 10^{-8} \mathrm{~cm}\)
CHXII01:THE SOLID STATE

318907 An element has body centered cubic (bcc) structure with a cell edge of \(288 \mathrm{pm}\). The atomic radius is:

1 \(\dfrac{\sqrt{2}}{4} \times 288 \mathrm{pm}\)
2 \(\dfrac{4}{\sqrt{3}} \times 288 \mathrm{pm}\)
3 \(\dfrac{4}{\sqrt{2}} \times 288 \mathrm{pm}\)
4 \(\dfrac{\sqrt{3}}{4} \times 288 \mathrm{pm}\)
NEET - 2020
CHXII01:THE SOLID STATE

318908 A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is ' \(a\) ' , the closest approach between two atoms in metallic crystal will be:

1 \(\sqrt{2} a\)
2 \(2 \sqrt{2} a\)
3 \(2 a\)
4 \(\dfrac{a}{\sqrt{2}}\)
CHXII01:THE SOLID STATE

318909 Polonium adopts cubic structure with edge length of cube being \(0.336 \mathrm{~nm}\). The distance between the polonium atoms which lie at the corners along the body diagonal is

1 \(0.481 \mathrm{~nm}\)
2 \(0.582 \mathrm{~nm}\)
3 \(0.291 \mathrm{~nm}\)
4 \(0.336 \mathrm{~nm}\)
CHXII01:THE SOLID STATE

318910 Percentage of free space in cubic close packed structure and in body centred structure are respectively:

1 \(32 \%\) and \(48 \%\)
2 \(26 \%\) and \(32 \%\)
3 \(48 \%\) and \(26 \%\)
4 \(30 \%\) and \(26 \%\)
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CHXII01:THE SOLID STATE

318906 Sodium metal crystallises as a body centred cubic

1 \(9.312 \times 10^{-7} \mathrm{~cm}\)
2 \(1.857 \times 10^{-8} \mathrm{~cm}\)
3 \(2.371 \times 10^{-7} \mathrm{~cm}\)
4 \(3.817 \times 10^{-8} \mathrm{~cm}\)
CHXII01:THE SOLID STATE

318907 An element has body centered cubic (bcc) structure with a cell edge of \(288 \mathrm{pm}\). The atomic radius is:

1 \(\dfrac{\sqrt{2}}{4} \times 288 \mathrm{pm}\)
2 \(\dfrac{4}{\sqrt{3}} \times 288 \mathrm{pm}\)
3 \(\dfrac{4}{\sqrt{2}} \times 288 \mathrm{pm}\)
4 \(\dfrac{\sqrt{3}}{4} \times 288 \mathrm{pm}\)
NEET - 2020
CHXII01:THE SOLID STATE

318908 A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is ' \(a\) ' , the closest approach between two atoms in metallic crystal will be:

1 \(\sqrt{2} a\)
2 \(2 \sqrt{2} a\)
3 \(2 a\)
4 \(\dfrac{a}{\sqrt{2}}\)
CHXII01:THE SOLID STATE

318909 Polonium adopts cubic structure with edge length of cube being \(0.336 \mathrm{~nm}\). The distance between the polonium atoms which lie at the corners along the body diagonal is

1 \(0.481 \mathrm{~nm}\)
2 \(0.582 \mathrm{~nm}\)
3 \(0.291 \mathrm{~nm}\)
4 \(0.336 \mathrm{~nm}\)
CHXII01:THE SOLID STATE

318910 Percentage of free space in cubic close packed structure and in body centred structure are respectively:

1 \(32 \%\) and \(48 \%\)
2 \(26 \%\) and \(32 \%\)
3 \(48 \%\) and \(26 \%\)
4 \(30 \%\) and \(26 \%\)
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXII01:THE SOLID STATE

318906 Sodium metal crystallises as a body centred cubic

1 \(9.312 \times 10^{-7} \mathrm{~cm}\)
2 \(1.857 \times 10^{-8} \mathrm{~cm}\)
3 \(2.371 \times 10^{-7} \mathrm{~cm}\)
4 \(3.817 \times 10^{-8} \mathrm{~cm}\)
CHXII01:THE SOLID STATE

318907 An element has body centered cubic (bcc) structure with a cell edge of \(288 \mathrm{pm}\). The atomic radius is:

1 \(\dfrac{\sqrt{2}}{4} \times 288 \mathrm{pm}\)
2 \(\dfrac{4}{\sqrt{3}} \times 288 \mathrm{pm}\)
3 \(\dfrac{4}{\sqrt{2}} \times 288 \mathrm{pm}\)
4 \(\dfrac{\sqrt{3}}{4} \times 288 \mathrm{pm}\)
NEET - 2020
CHXII01:THE SOLID STATE

318908 A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is ' \(a\) ' , the closest approach between two atoms in metallic crystal will be:

1 \(\sqrt{2} a\)
2 \(2 \sqrt{2} a\)
3 \(2 a\)
4 \(\dfrac{a}{\sqrt{2}}\)
CHXII01:THE SOLID STATE

318909 Polonium adopts cubic structure with edge length of cube being \(0.336 \mathrm{~nm}\). The distance between the polonium atoms which lie at the corners along the body diagonal is

1 \(0.481 \mathrm{~nm}\)
2 \(0.582 \mathrm{~nm}\)
3 \(0.291 \mathrm{~nm}\)
4 \(0.336 \mathrm{~nm}\)
CHXII01:THE SOLID STATE

318910 Percentage of free space in cubic close packed structure and in body centred structure are respectively:

1 \(32 \%\) and \(48 \%\)
2 \(26 \%\) and \(32 \%\)
3 \(48 \%\) and \(26 \%\)
4 \(30 \%\) and \(26 \%\)
NEET DIGITAL LIBRARY
CHXII01:THE SOLID STATE

318906 Sodium metal crystallises as a body centred cubic

1 \(9.312 \times 10^{-7} \mathrm{~cm}\)
2 \(1.857 \times 10^{-8} \mathrm{~cm}\)
3 \(2.371 \times 10^{-7} \mathrm{~cm}\)
4 \(3.817 \times 10^{-8} \mathrm{~cm}\)
CHXII01:THE SOLID STATE

318907 An element has body centered cubic (bcc) structure with a cell edge of \(288 \mathrm{pm}\). The atomic radius is:

1 \(\dfrac{\sqrt{2}}{4} \times 288 \mathrm{pm}\)
2 \(\dfrac{4}{\sqrt{3}} \times 288 \mathrm{pm}\)
3 \(\dfrac{4}{\sqrt{2}} \times 288 \mathrm{pm}\)
4 \(\dfrac{\sqrt{3}}{4} \times 288 \mathrm{pm}\)
NEET - 2020
CHXII01:THE SOLID STATE

318908 A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is ' \(a\) ' , the closest approach between two atoms in metallic crystal will be:

1 \(\sqrt{2} a\)
2 \(2 \sqrt{2} a\)
3 \(2 a\)
4 \(\dfrac{a}{\sqrt{2}}\)
CHXII01:THE SOLID STATE

318909 Polonium adopts cubic structure with edge length of cube being \(0.336 \mathrm{~nm}\). The distance between the polonium atoms which lie at the corners along the body diagonal is

1 \(0.481 \mathrm{~nm}\)
2 \(0.582 \mathrm{~nm}\)
3 \(0.291 \mathrm{~nm}\)
4 \(0.336 \mathrm{~nm}\)
CHXII01:THE SOLID STATE

318910 Percentage of free space in cubic close packed structure and in body centred structure are respectively:

1 \(32 \%\) and \(48 \%\)
2 \(26 \%\) and \(32 \%\)
3 \(48 \%\) and \(26 \%\)
4 \(30 \%\) and \(26 \%\)
Join With Us for More Updates
CHXII01:THE SOLID STATE

318906 Sodium metal crystallises as a body centred cubic

1 \(9.312 \times 10^{-7} \mathrm{~cm}\)
2 \(1.857 \times 10^{-8} \mathrm{~cm}\)
3 \(2.371 \times 10^{-7} \mathrm{~cm}\)
4 \(3.817 \times 10^{-8} \mathrm{~cm}\)
CHXII01:THE SOLID STATE

318907 An element has body centered cubic (bcc) structure with a cell edge of \(288 \mathrm{pm}\). The atomic radius is:

1 \(\dfrac{\sqrt{2}}{4} \times 288 \mathrm{pm}\)
2 \(\dfrac{4}{\sqrt{3}} \times 288 \mathrm{pm}\)
3 \(\dfrac{4}{\sqrt{2}} \times 288 \mathrm{pm}\)
4 \(\dfrac{\sqrt{3}}{4} \times 288 \mathrm{pm}\)
NEET - 2020
CHXII01:THE SOLID STATE

318908 A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is ' \(a\) ' , the closest approach between two atoms in metallic crystal will be:

1 \(\sqrt{2} a\)
2 \(2 \sqrt{2} a\)
3 \(2 a\)
4 \(\dfrac{a}{\sqrt{2}}\)
CHXII01:THE SOLID STATE

318909 Polonium adopts cubic structure with edge length of cube being \(0.336 \mathrm{~nm}\). The distance between the polonium atoms which lie at the corners along the body diagonal is

1 \(0.481 \mathrm{~nm}\)
2 \(0.582 \mathrm{~nm}\)
3 \(0.291 \mathrm{~nm}\)
4 \(0.336 \mathrm{~nm}\)
CHXII01:THE SOLID STATE

318910 Percentage of free space in cubic close packed structure and in body centred structure are respectively:

1 \(32 \%\) and \(48 \%\)
2 \(26 \%\) and \(32 \%\)
3 \(48 \%\) and \(26 \%\)
4 \(30 \%\) and \(26 \%\)