13 - Class 12 - Chemistry - Solid State - Non Stoichiometric Defects

In this video the non-stoichiometric defects such as the metal excess defect and the metal deficiency defect are explained in detail.
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[@aishwaryaaishwarya8108]

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[@Yumeglow-f9i]

HELLO , where the extra e- came from in metal excess defect help😅 pls

[@anshulb.9212]

@@Yumeglow-f9i The zinc became a zinc cation after heating gaining a 2+ charge. That means it lost two electrons and that is where the two electrons came from.

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[@majaliwashilinde3623]

is it right that the metal excess caused by extra cation at the interstitial site is the same as frenkel defect? as we know is frenkel deffect there are equal number of cation and anion. so if it is the same as frenkel defect there is no need to balance charges with electron teacher

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[@andyoullneverknow3989]

In metal excess defect due to the presence of extra cations at interstitial sites, where are the extra cations coming from? The crystal ZnO is already present in the form of Zn2+ and O2- ions?

[@VG__]

1:10 f centres 2:05 2:57 Zn ex 3:32 4:10

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Excellent

[@satyampandey890]

2:46 Please 😖 explain me the equation of ZnO decomposition! From where those 2e came & is the zinc oxide heated then again crystallized to create defect! Please 🙏 reply

[@kedarshiralkar1099]

See, when ZnO decomposes we get Zn^2+ and O^2- and when the oxygen is getting released , it releases 2 electrons to make itself neutral, thus giving us 1/2 O2 which is basically just O and 2 excess electrons.

[@gireeshabangaru9561]

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[@rk...]

What is the difference between impurity defect and metal deficiency defect then???🙄 please reply

[@shruti319]

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Thank you

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yeahhh good explanation i understood very well. thank you..

[@nc8002]

Perfect

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I thought this animation is made totally on class12 CHEMISTRY part 1 pgno. 26 ncert 's word to word same ....

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But really good....💯💯

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superb explanation.please upload impurity defects also.

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uss

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[@priyanshibhattacharjee3789]

I didn't understand anything here ...I'm sorry😓 I don't want to insult the narrator. ...its just me ...i didn't understand. ..maybe because I'm really weak in chemistry 😅

[@priyanshibhattacharjee3789]

I felt like she's just reading out those text notes ......instead of explaining it to us!

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