MCQ
Cations are present in the interstitial sites in $......$
- ✓Frenkel defect.
- BSchottky defect.
- CVacancy defect.
- DMetal deficiency defect.
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Defect
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Definition
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Type of solid
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Effect of defect on density of substance
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Structure fo crystal $($with defect$)$
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Frenkel Defect or dis$-$location defect
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A crystal is said to have Frenkel defect if cation is missing from the normal lattice position and is occupying interstitial site.
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Ionic solid
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Remain same
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Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| List $I$ Name of reaction | List $II$ Reagent used |
| $A$ Hell-Volhard-Zelinsky reaction | $I$ $NaOH + I _2$ |
| $B$ Iodoform reaction | $II$ (i) $CrO _2 Cl _2, CS _2$ (ii)$H _2 O$ |
| $C$ Etard reaction | $III$ (i) $Br _2 /$ red phosphorus (ii) $H _2 O$ |
| $D$ Gatterman-Koch reaction | $IV$ $CO , HCl$, anhyd.$AlCl_3$ |
Choose the correct answer from the options given below:
What is $A$




