Question Answers

Which of the following transition metals can have highest oxidation state (a) Cr (b) Co (c) Ni (d) Cu Which of the following transition metals can have highest oxidation state (a) Cr (b) Co (c) Ni (d) Cu November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Oxidation number of Mn in K2MnO4 and in KMnO4 are respectively (a) +6 and +7 (b) +6 and +6 Oxidation number of Mn in K2MnO4 and in KMnO4 are respectively (a) +6 and +7 (b) +6 and +6 November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Energy of an electron is given by E = -2.178 x 10^-18 J [ Z^2 / n^2 ]. Wavelength of length required to excite an electron in an hydrogen atom from level n = 1 to n = 2 will be Energy of an electron is given by E = -2.178 x 10^-18 J [ [...]

For which element of first transition series the oxidation potential value (M to M2+ + 2e – is lowest (a) Mn (b) Fe (c) Ni (d) Cu For which element of first transition series the oxidation potential value (M to M2+ + 2e - is lowest (a) Mn (b) Fe (c) Ni (d) Cu November [...]

In which of the following metallic bond is strongest (a) Fe (b) Sc (c) V (d) Cr In which of the following metallic bond is strongest (a) Fe (b) Sc (c) V (d) Cr November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The ground state energy of hydrogen atom is – 13.6 eV . The energy of second excited state of He^+ ion in eV is The ground state energy of hydrogen atom is - 13.6 eV . The energy of second excited state of He^+ ion in eV is November 30, 2020 Category: Uncategorised (JEE Advanced [...]

If the nitrogen atom had electronic configuration 1S 7 , it would have enrgy lower than that of the normal ground state configuration 1s 2 ,2s 2 ,2p 3 , because the electrons would be closer to the nucleus. Yet 1s 7 is not observed because it violates. 2p 3 2s 2 because the electrons [...]

Electric dipole of moment P = pi is kept at a point (x,y) in an electric field E = 4 xy^2 i + 4 x^2 y j. Find the magnitude of force acting on the dipole. Electric dipole of moment P = pi is kept at a point (x y) in an electric field E [...]

Three points charges are placed at the corners of an equilateral triangle of side L as shown in the figure: Find the dipole moment of the system. Three points charges are placed at the corners of an equilateral triangle of side L as shown in the figure: Find the dipole moment of the system. November [...]

Find the dipole moment of the charged wire in the form of an arc as shown in figure. Half of the arc has linear charge density +lambda and other half -lambda. The angle subtended by the arc at the center is 2theta0 and radius of arc is R. An electron initially at rest falls a [...]