Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

Select the correct curve(s) If v = velocity of electron in Bohr’s orbit r = Radius of electron in Bohr’s orbit P. E = potential energy of electron in Bohr’s orbit K. E = kinetic energy of electtron in Bohr’s orbit Electrons falls from 7th energy level and lower levels to produce bands in the [...]

Bell metal is an alloy of (a) Cu, Zn and Sn (b) Cu, Zn and Ni (c) Cu and Zn (d) Cu and Sn Bell metal is an alloy of (a) Cu Zn and Ni (c) Cu and Zn (d) Cu and Sn Zn and Sn (b) Cu December 1, 2020 Category: Uncategorised (JEE Advanced [...]

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) ,

A blue colouration is not obtained when (a) Ammonium hydroxide dissolves in copper sulphate A blue colouration is not obtained when (a) Ammonium hydroxide dissolves in copper sulphate November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Which of the following metal is obtained by leaching out process using a solution of NaCn and then precipitating the metal by addition of zinc dust Which of the following metal is obtained by leaching out process using a solutio of NaCn and then precipitating the metal by addition of zinc dust November 30, 2020 [...]

In nitriding process of steel (a) Steel is heated in an atmosphere of ammonia (b) Steel is made red hot and then cooled In nitriding process of steel (a) Steel is heated in an atmosphere of ammonia (b) Steel is made red hot and then cooled November 30, 2020 Category: Uncategorised (JEE Advanced Physics by [...]