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Which of the following lanthanoid ion is paramagnetic (a) Ce 4+ (b) Yb 2+ (c) Lu 3+ (d) Eu 2+
30
Nov
Which of the following lanthanoid ion is paramagnetic (a) Ce 4+ (b) Yb 2+ (c) Lu 3+ (d) Eu 2+ Which of the following lanthanoid ion is paramagnetic (a) Ce 4+ (b) Yb 2+ (c) Lu 3+ (d) Eu 2+ November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Which of the following pairs of elements cannot form an alloy (a) Zn, Cu (b) Fe, Hg (c) Fe, C (d) Hg, Na
30
Nov
Which of the following pairs of elements cannot form an alloy (a) Zn, Cu (b) Fe, Hg (c) Fe, C (d) Hg, Na C (d) Hg Cu (b) Fe Hg (c) Fe Na Which of the following pairs of elements cannot form an alloy (a) Zn November 30, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
Which is not the correct statement about the chemistry of 3d and 4f series elements (a) 3d elements show more oxidation states than 4f series elements
30
Nov
Which is not the correct statement about the chemistry of 3d and 4f series elements (a) 3d elements show more oxidation states than 4f series elements Which is not the correct statement about the chemistry of 3d and 4f series elements (a) 3d elements show more oxidation states than 4f series elements November 30, 2020 [...]
The number of unpaired electrons in gaseous species of Mn 3+, Cr 3+ and V 3+ respectively are ………….. and most stable species is …………………………..
30
Nov
The number of unpaired electrons in gaseous species of Mn 3+, Cr 3+ and V 3+ respectively are ………….. and most stable species is ………………………….. Cr 3+ and V 3+ respectively are .............. and most stable species is ................................ The number of unpaired electrons in gaseous species of Mn 3+ November 30, 2020 Category: Uncategorised [...]
A metal M having electronic configuration M – 1s2 2s2 2p6 3s2 3p6 3d10 4s1 (a) s-block element (b) d-block element
30
Nov
A metal M having electronic configuration M – 1s2 2s2 2p6 3s2 3p6 3d10 4s1 (a) s-block element (b) d-block element A metal M having electronic configuration M - 1s2 2s2 2p6 3s2 3p6 3d10 4s1 (a) s-block element (b) d-block element November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
The atom of which one of the following elements has the highest number of unpaired electrons (a) 25Mn (b) 24Cr (c) 96Cm (d) 26Fe
30
Nov
The atom of which one of the following elements has the highest number of unpaired electrons (a) 25Mn (b) 24Cr (c) 96Cm (d) 26Fe The atom of which one of the following elements has the highest number of unpaired electrons (a) 25Mn (b) 24Cr (c) 96Cm (d) 26Fe November 30, 2020 Category: Uncategorised (JEE Advanced [...]
The magnetic moment (in BM) of Zn 2+ ion according to spin only formula is (a) Zero (b) 1.73 (c) 2.84 (d) 3.87
30
Nov
The magnetic moment (in BM) of Zn 2+ ion according to spin only formula is (a) Zero (b) 1.73 (c) 2.84 (d) 3.87 The magnetic moment (in BM) of Zn 2+ ion according to spin only formula is (a) Zero (b) 1.73 (c) 2.84 (d) 3.87 November 30, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
A charge Q is distributed over two concentric hollow spheres of radii a and b (a>b), so that the surface charge densities are equal. The potential at the common centre is 1/4π∈0 times
30
Nov
A charge Q is distributed over two concentric hollow spheres of radii a and b (a>b), so that the surface charge densities are equal. The potential at the common centre is 1/4π∈0 times A charge Q is distributed over two concentric hollow spheres of radii a and b (a>b) so that the surface charge densities [...]
The coordination number of an ……………….. complex may increase to 8 (a) Cobalt (b) Osmium (c) Nickel (d) Iron
30
Nov
The coordination number of an ……………….. complex may increase to 8 (a) Cobalt (b) Osmium (c) Nickel (d) Iron The coordination number of an .................... complex may increase to 8 (a) Cobalt (b) Osmium (c) Nickel (d) Iron November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The graph between ∣Ψ∣ 2 and r(radial distance) is shown below. This represents (a) 3s orbital (b) 1s orbital (c) 2p orbital (d) 2s orbital
30
Nov
The graph between ∣Ψ∣ 2 and r(radial distance) is shown below. This represents (a) 3s orbital (b) 1s orbital (c) 2p orbital (d) 2s orbital The graph between ∣Ψ∣ 2 and r(radial distance) is shown below. This represents (a) 3s orbital (b) 1s orbital (c) 2p orbital (d) 2s orbital November 30, 2020 Category: Uncategorised [...]