Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
After partial roasting, the sulphide of copper can be reduced by (a) Carbon (b) Self-reduction (c) Cyanide process (d) Heating
03
Dec
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
03
Dec
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)
03
Dec
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
03
Dec
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
03
Dec
(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
03
Dec
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
03
Dec
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
03
Dec
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) ,
Extraction of copper from copper pyrite (CuFeS2) involves (a) Crushing followed by concentration of the ore by froth flotation
03
Dec
Extraction of copper from copper pyrite (CuFeS2) involves (a) Crushing followed by concentration of the ore by froth flotation Extraction of copper from copper pyrite (CuFeS2) involves (a) Crushing followed by concentration of the ore by froth flotation December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Fe 3+ is reduced to fe 2+ by using (a) H2O2 in presence of NaOH (c) H2O2 in presence of H2SO4
03
Dec
Fe 3+ is reduced to fe 2+ by using (a) H2O2 in presence of NaOH (c) H2O2 in presence of H2SO4 Fe 3+ is reduced to fe 2+ by using (a) H2O2 in presence of NaOH (c) H2O2 in presence of H2SO4 December 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]