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In vd tb on pg 138 in definition of roasting it says : Roasting is the process of heating the conc ore in the presence of excess air to a high temperature before it is reduced to a METAL. I think writing metallic oxide instead of metal would be appropriate. Do u think so? But going against book can also cause a problem.
asked by Shivaanee sharma (shivaanee22) 7 years ago
1

+ 1 more questions by shivaanee22  

Yellowish green solid Q turns reddish brown on heating. Its aq. soln gives white ppt with BaCl2 soln. This precipitate is insoluble in all mineral acid. Name Q
asked by Nishant Shah (nishantshahroxx) 7 years ago
4
Can someone upload notes on all the important observation questions?
asked by Akash Ashok (akashskyash007) 7 years ago
2

+ 1 more questions by akashskyash007  

guys know the pattern of the paper ?
MAIN QUESTION ?
asked by Varun (varunnair) 7 years ago
2

+ 1 more questions by varunnair  

Q.How is calamine concentrated?
Are there any eq where a sulphate reacts with an acid?
asked by Tanisha Vats (catercousin10) 7 years ago
3
Amphoteric oxide which cannot be reduced by ammonia
asked by Catlover (catlover) 7 years ago
2
balanced eqn for zinc hydroxide + hot conc KOH
asked by ­ (heisenberg69) 7 years ago
4
guys what is smelting the definition is nt in my text(2014)
asked by Mohammed Malik Sharaf (mmks1234) 7 years ago
3
Jst wanted to confirm
Nickel steel is Fe+ Ni
Invar is Fe +Ni+ C
Correct me if i m wrong..
asked by Deblina Bora (booksboozer) 7 years ago
YO JUST WANTED TO KNOW HOW TO GET FULL MARKS
asked by Kanyedubaigma (uraniumpotato2000) 7 years ago

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