Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
How is limestone used in Fe extraction (a) Oxidation of Fe ore (b) Reduction of Fe ore (c) Formation of slag
12
Nov
How is limestone used in Fe extraction (a) Oxidation of Fe ore (b) Reduction of Fe ore (c) Formation of slag How is limestone used in Fe extraction (a) Oxidation of Fe ore (b) Reduction of Fe ore (c) Formation of slag November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
Which of the following reaction taking place in the Blast furnace is endothermic (a) CaCO3 to CaO + CO2 (b) 2C + O2 to 2Co (c) C + O2 to CO2
12
Nov
Which of the following reaction taking place in the Blast furnace is endothermic (a) CaCO3 to CaO + CO2 (b) 2C + O2 to 2Co (c) C + O2 to CO2 Which of the following reaction taking place in the Blast furnace is endothermic (a) CaCO3 to CaO + CO2 (b) 2C + O2 to [...]
In blast furnace, the highest temperature is in (a) Reduction zone (b) Slag zone (c) Fusion Zone (d) Combustion zone
12
Nov
In blast furnace, the highest temperature is in (a) Reduction zone (b) Slag zone (c) Fusion Zone (d) Combustion zone In blast furnace the highest temperature is in (a) Reduction zone (b) Slag zone (c) Fusion Zone (d) Combustion zone November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
When copper pyrites is roasted in excess of air, a mixture of CuO + FeO is formed. FeO is present as impurities. This can be removed as slag during reduction of CuO. The flux added to
12
Nov
When copper pyrites is roasted in excess of air, a mixture of CuO + FeO is formed. FeO is present as impurities. This can be removed as slag during reduction of CuO. The flux added to a mixture of CuO + FeO is formed. FeO is present as impurities. This can be removed as slag [...]
Column I gives physical quantities based on a situation in which an ideal cell of emf V is connected across a cylindrical rod of uniform cross-section area and conductivity (sigma) as shown in figure E, J, phi and I are electric field at, current density through, electric flux through and current through shaded cross section repectively as shown in figure. Physical quantities in column-II are equal to those in column i Match the expression in Column I with the statement in Column II
12
Nov
Column I gives physical quantities based on a situation in which an ideal cell of emf V is connected across a cylindrical rod of uniform cross-section area and conductivity (sigma) as shown in figure E, J, phi and I are electric field at, current density through, electric flux through and current through shaded cross section [...]
In the given circuit , match the statements of column I and Column II.
12
Nov
In the given circuit , match the statements of column I and Column II. In the given circuit Match the statements of column I and column II November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A battery of emf E is connected across a conductor as shown in figure. As one observers from A to B , match the following.
12
Nov
A battery of emf E is connected across a conductor as shown in figure. As one observers from A to B , match the following. A battery of emf E is connected across a conductor as shown in figure. As one observers from A to B match the following November 12, 2020 Category: Uncategorised (JEE [...]
A capacitor of capacitance 0.1 muF is connected to a battery of emf 8 V (as shown in figure ) under the steady – state condition .
12
Nov
A capacitor of capacitance 0.1 muF is connected to a battery of emf 8 V (as shown in figure ) under the steady – state condition . A capacitor of capacitance 0.1 muF is connected to a battery of emf 8 V (as shown in figure ) under the steady - state condition . November [...]
Which of the following substance can be used for drying gases (a) CaCO3 (b) Na2CO3 (c) NaHCO3 (d) CaO
12
Nov
Which of the following substance can be used for drying gases (a) CaCO3 (b) Na2CO3 (c) NaHCO3 (d) CaO Which of the following substance can be used for drying gases (a) CaCO3 (b) Na2CO3 (c) NaHCO3 (d) CaO November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
When a metal is to be extracted from its ore, if the gangue associated with the ore is silica, then (a) An acidic flux is needed (b) A basic flux is needed (c) Both acidic and basic
12
Nov
When a metal is to be extracted from its ore, if the gangue associated with the ore is silica, then (a) An acidic flux is needed (b) A basic flux is needed (c) Both acidic and basic if the gangue associated with the ore is silica then (a) An acidic flux is needed (b) A [...]