What type of crystal defect is indicated in the diagram below? $N a^{+}, C 1^{-}, N a^{+}, C 1^{-}, N a^{+}, C 1^{-}$
$C 1^{- ∙} C 1^{-} N a^{+} ∙ N a^{+}$
$N a^{+} C 1^{- ∙} C 1^{-} N a^{+} C 1^{-}$
$C 1^{-} N a^{+} C 1^{-} N a^{+} ∙ N a^{+}$

Frenkel defect

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Schottky defect

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Interstitial defect

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Frenkel and Schottky defects

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Solution

The correct option is B Schottky defect
Frenkel defect : This type of defect is created when an ion leaves its appropriate site in the lattice and occupies an interstitial site. A hole or vacancy is thus produced in the lattice.
Schottky defect : This type of defect is produced when one cation and anion are missing from their respective positions leaving behind a pair of holes. The crystal as a whole remains neutral because the number of missing positive ions (cations) and negative ions (anions) is the same.

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Similar questions

Q. What type of crystal defects is indicated in the diagram given below?

\begin{matrix} N a^{+} & C l^{-} & N a^{+} & C l^{-} & N a^{+} & C l^{-} C l^{-} & □ & C l^{-} & N a^{+} & □ & N a^{+} N a^{+} & C l^{-} & □ & N a^{+} & C l^{-} & C l^{-} C l^{-} & N a^{+} & C l^{-} & N a^{+} & □ & N a^{+} \end{matrix}

Q. What type of crystal defect is indicated in the diagram below?

$N a^{+}$	$C l^{-}$	$N a^{+}$	$C l^{-}$	$N a^{+}$	$C l^{-}$
$C l^{-}$		$C l^{-}$	$N a^{+}$		$N a^{+}$
$N a^{+}$	$C l^{-}$		$C l^{-}$	$N a^{+}$	$C l^{-}$
$C l^{-}$	$N a^{+}$	$C l^{-}$	$N a^{+}$		$N a^{+}$

Three structures are given below in which two glucose units are linked.
Which of these linkages between glucose units are between $C_{1} a n d C_{4}$ and which linkages are between $C_{1} a n d C_{6} ?$

(a) (i) is between C1 and C4, (ii) and (iii) are between C1 and C6
(b) (i) and (ii) are between C1 and C4, (iii) is between C1 and C6
(c) (i) and (iii) are between C1 and C4 (ii) is between C1 and C6
(d) (i) and (iii) are between C1 and C6, (ii) is between $C_{1} a n d C_{4}$

Q. Value of the expression

C_{0} + (C_{0} + C_{1}) + (C_{0} + C_{1} + C_{2}) + . . . . + (C_{0} + C_{1} + . . . . + C_{n - 1})

Q. The distance between the lines y = mx + c₁ and y = mx + c₂, is

(a)

\frac{c_{1} - c_{2}}{\sqrt{1 + m^{2}}}

(b)

\frac{|c_{1} - c_{2}|}{\sqrt{1 + m^{2}}}

(c)

\frac{c_{2} - c_{1}}{\sqrt{1 + m^{2}}}

(d)

|c_{1} - c_{2}|

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What type of crystal defect is indicated in the diagram below? Na+, C1−, Na+, C1−, Na+, C1−C1−∙C1−Na+∙Na+Na+C1−∙C1− Na+C1−C1−Na+C1−Na+∙Na+

What type of crystal defect is indicated in the diagram below? $N a^{+}, C 1^{-}, N a^{+}, C 1^{-}, N a^{+}, C 1^{-}$
$C 1^{- ∙} C 1^{-} N a^{+} ∙ N a^{+}$
$N a^{+} C 1^{- ∙} C 1^{-} N a^{+} C 1^{-}$
$C 1^{-} N a^{+} C 1^{-} N a^{+} ∙ N a^{+}$