Question Answers

Reaction between the following pairs will produce H2 except (a) Na + ethyl alcohol (b) Fe + steam (c) Fe + H2SO4 Reaction between the following pairs will produce H2 except (a) Na + ethyl alcohol (b) Fe + steam (c) Fe + H2SO4 November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

When calomel reacts with NH4OH , we get (a) HgNH2Cl (b) NH2-Hg-Hg-Cl (c) Hg2O (d) HgO we get (a) HgNH2Cl (b) NH2-Hg-Hg-Cl (c) Hg2O (d) HgO When calomel reacts with NH4OH November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Amongst TiF6 2-, CoF6 3-, Cu2Cl2 and NiCl4 2- (Atomic number Ti = 22, kCo = 27, Cu = 29, Ni = 28 ). The colourless species are Amongst TiF6 2- CoF6 3- Cu = 29 Cu2Cl2 and NiCl4 2- (Atomic number Ti = 22 kCo = 27 Ni = 28 ). The colourless species [...]

Parke’s process is used to extract (a) Silver using NaCn (b) Copper using CuFeS2 Parke's process is used to extract (a) Silver using NaCn (b) Copper using CuFeS2 November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Photographic films and plates have an essential ingredient of (a) Silver nitrate (b) Silver bromide (c) Sodium chloride Photographic films and plates have an essential ingredient of (a) Silver nitrate (b) Silver bromide (c) Sodium chloride November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Find the potential difference between the points E and F in the figure given below. Assume E and F are the midpoints of AB and DC respectively Find the potential difference between the points E and F in the figure given below. Assume E and F are the midpoints of AB and DC respectively November [...]

Three concentric spherical shells are arranged as shown in figure. The middle and outmost shells are earthed. The innermost sphere is given a charge q0, what are the charges in the middle and the outermost sphere respectively ? Three concentric spherical shells are arranged as shown in figure. The middle and outmost shells are earthed. [...]

A charge + q is fixed at each of the points x=x0,x=3×0,x=5×0…∞ on the x-axis and a charge – q is fixed at each of the points x=2×0,x=4×0,x=6×0…,∞ Here, x0 is a positive constant. Take the electric potential at a point due to a charge Q at a distance r from it to be Q/4πε0r. [...]

Two thin wire rings each having radius R are placed at a distance d apart with their axes coinciding. The charges on the two rings are +Q and -Q. The potential difference between the center of the two rings is : The electric field in a region is given by E→=(A/x3)i^ An expression for the [...]

There is a uniform electrostatic field in a region. The potential at various points on a small sphere centred at P, in the region, is found to vary between the limits 589.0 V to 589.8 V. What is the potential at a point on the sphere whose radius vector makes an angle of 60 degree [...]