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

The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [ a0 is bohr radius ] The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [ a0 is bohr radius ] November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

Which element gives maximum balanced oxide (a) V (b) Cr (c) Mn (d) Fe Which element gives maximum balanced oxide (a) V (b) Cr (c) Mn (d) Fe November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

If the nitrogen atom has electronic configuration 1s^7, it would have energy 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. because the electrons would be closer to the nucleus. Yet 1s^7 is not [...]

The quantum numbers +1/2 and – 1/2 for the electron spin represent (a) Rotation of the electron in clockwise and anticlockwise direction respectively (b) Rotation of the electron in anticlockwise and clockwise direction respectively (c) Magnetic moment of the electron pointing up and down respectively (d) Two quantum mechanical spin states which have no classical [...]

Which of the following has highest ionic radii (a) Cr +3 (b) Mn +3 (c) Fe +3 (d) Co +3 Which of the following has highest ionic radii (a) Cr +3 (b) Mn +3 (c) Fe +3 (d) Co +3 November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Chloride of which of the following elements will be coloured (a) Silver (b) Mercury (c) Zinc (d) Cobalt Chloride of which of the following elements will be coloured (a) Silver (b) Mercury (c) Zinc (d) Cobalt November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Rutherford’s experiment , which established the nuclear model of the atom , used a beam of Rutherford's experiment used a beam of which established the nuclear model of the atom November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In first transition series, the melting point of Mn is low because (a) Due to d10 configuration, metallic bonds are strong (b) Due to d7 configuration, metallic bonds are weak In first transition series metallic bonds are strong (b) Due to d7 configuration metallic bonds are weak the melting point of Mn is low because [...]

The wavelength associated with a golf ball weighing 200 g and moving at a speed of 5 m/h is of the order The wavelength associated with a golf ball weighing 200 g and moving at a speed of 5 m/h is of the order November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

Which of the following statement is correct (a) Iron belongs to 3rd transition series of the periodic table (b) Iron belongs to f-block of the periodic table Which of the following statement is correct (a) Iron belongs to 3rd transition series of the periodic table (b) Iron belongs to f-block of the periodic table November [...]