19zinc oxide
Q1 Philosopher's wool when heated with BaO at 1100 C gives ?
Q2Which managanese oxide is amphotseric ?
Q3 copper (II) ions give redish brown ppt wth potassium ferrocyanide.Find formula of ppt.
its Cu2[Fe(CN)6] naa ??
Q4 how to prepare anhydrous mercurous chloride ?
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10 Answers
11Ans 2) Mn O2 is amphoteric
Ans 4)Mercurous chloride forms by the reaction of elemental mercury and mercuric chloride:
Hg + HgCl2 → Hg2Cl2
It can be prepared via metathesis reaction involving aqueous mercury(I) nitrate using various chloride sources including NaCl or HCl.
2HCl + Hg2(NO3)2 → Hg2Cl2 + 2HNO3
131) BaZnO2 ....?? (Since BaO is basic n ZnO is amphoteric in nature, so shud form Barium zincate just lyke it forms sodium zincate...)
3) Yup, u r correct eure bhai, thts Cu2[Fe(CN)6] only....