Which of the following proteins will be most far away from the positively charged electrode during isoelectric focusing in a buffer with pH of 5?

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#Question id: 20032

#XL - P Chemistry

If threshold wavelength for ejection of electron from metal is 300nm, then work function for photoelectric emission is

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#Question id: 20033

#XL - P Chemistry

The mass of one mole of electron is

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#Question id: 20034

#XL - P Chemistry

In two H atoms A and 13 the electrons move around the nucleus in circular orbits of radius r and 4r respectively. The ratio of the times taken by them to complete one revolution is

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#Question id: 20035

#XL - P Chemistry

For the electronic transition from n = 2 to n = 1 which one of the following will produce shortest wave length?

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#Question id: 20036

#XL - P Chemistry

The energy required to dislodge electron from excited isolated H atom (IE1 = 13.6eV) is

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#Question id: 20037

#XL - P Chemistry

Velocity of electron in the first orbit of H-atom is compared to that of velocity of light is approximately