Question Answers

AgBr used in photography, is removed with the help of ………………… called …………………..and forms ………………………….. AgBr used in photography is removed with the help of ..................... called .......................and forms ................................ December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Identify the statement which is correct for copper sulphate (a) It reacts with NaOH and glucose to give Cu2O (brick red ppt) Identify the statement which is correct for copper sulphate (a) It reacts with NaOH and glucose to give Cu2O (brick red ppt) December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

After partial roasting, the sulphide of copper can be reduced by (a) Carbon (b) Self-reduction (c) Cyanide process (d) Heating After partial roasting the sulphide of copper can be reduced by (a) Carbon (b) Self-reduction (c) Cyanide process (d) Heating December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The slag obtained in extraction of copper from copper pyrites is mainly (a) FeSiO3 (b) MnSiO3 (c) CaSiO3 The slag obtained in extraction of copper from copper pyrites is mainly (a) FeSiO3 (b) MnSiO3 (c) CaSiO3 December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

CuSO4 reacts with KCN to form (a) Cu(CN)2 (b) CuCN (c) K2(Cu(CN)4) (d) K3(Cu(CN)4) CuSO4 reacts with KCN to form (a) Cu(CN)2 (b) CuCN (c) K2(Cu(CN)4) (d) K3(Cu(CN)4) December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Iron reacts with steam to form (a) Fe2O3 (b) fe3O4 (c) H2 (d) FeO Iron reacts with steam to form (a) Fe2O3 (b) fe3O4 (c) H2 (d) FeO December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

(NH4)2Cr2O7 on heating gives (a) Cr2O3 (b) N2 (c) H2CrO4 (d) NH3 (NH4)2Cr2O7 on heating gives (a) Cr2O3 (b) N2 (c) H2CrO4 (d) NH3 December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The species that undergoes disproportionation in an alkaline medium are (a) Cl2 (b) MnO4 2- (c) NO2 The species that undergoes disproportionation in an alkaline medium are (a) Cl2 (b) MnO4 2- (c) NO2 December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

To an acidified dichromate solution, a pinch of Na2O2 is added and shaken. What is observed (a) Blue colour a pinch of Na2O2 is added and shaken. What is observed (a) Blue colour To an acidified dichromate solution December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Pick out the correct statement(s) (a) MnO2 dissolves in conc. HCl, but does not form Mn 4+ ions but does not form Mn 4+ ions Pick out the correct statement(s) (a) MnO2 dissolves in conc. HCl December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,