roasting and calcination difference is max 3 marks not 5 marks, your answer 1- roasting is done with sulphide of metal while calcination is carbonates of metal 2- roasting is in presence of excess oxygen while calcination is in limited of oxygen 3-roasting- 2zns+3o2--------> 2zno+ so2 calcination-znco3--------> zno+co2
5:40 explanation start
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@@sunaina5273 tumhara pre board hai kya
Ionic bond is also known as elctrovalent compound.
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Ma'am I've one question:-
Differentiate between roasting and calcination. (5MARKS)
roasting and calcination difference is max 3 marks not 5 marks, your answer
1- roasting is done with sulphide of metal while calcination is carbonates of metal
2- roasting is in presence of excess oxygen while calcination is in limited of oxygen
3-roasting- 2zns+3o2--------> 2zno+ so2
calcination-znco3--------> zno+co2
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Video starts at 5:40
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maam
11:12 eletrovalent bond
14:28 false
Not false it's true
My exams was tomorrow mam please speaks fast
Mam pls chemical reaction nd equation ka mind map ya cheat sheet ki video bna do
cheating kregi
2.30 se start ha
Too much overacting 😂
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2:30 se start 😊
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mam = crush
5:38 start at
Will not recommend this video to study
Where notes
Electovalent
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Not 20mins class only 15mins
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Please don't teach wrong to students amd specially when you are telling them to make notes because what you are saying they are noting it down 😢😢😢
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