The cis conformation shows Cα atoms are on the same side of the peptide bond, is ∼8 kJ mol−1 less stable than the trans conformation. Why?

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#Question id: 20161

#XL - P Chemistry

The radius of second Bohr’s orbit is

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#Question id: 20162

#XL - P Chemistry

For which of the following sets of quantum -numbers an electron will have the highest energy ?

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#Question id: 20163

#XL - P Chemistry

The uncertainty in the position of an electron (mass 9.1 × 10^–28 g) moving with a velocity of 3.0 x 104 cms^–1 accurate up to 0.011% will be

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#Question id: 20164

#XL - P Chemistry

The radius of hydrogen atom in the ground state is 0·53 Å, the radius of ₃Li²⁺ in the similar state is

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#Question id: 20165

#XL - P Chemistry

Splitting of spectral lines under the influence of magnetic field is called

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#Question id: 20166

#XL - P Chemistry

The total number of orbitals in a shell with principal quantum number ‘n’ is