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The ionisation enthalpy of hydrogen atom...

The ionisation enthalpy of hydrogen atom is `1.312xx10^6`J mol^-1`.The energy required to excite the electron in the atoms from n-1=1 to n-2=2 is

A

`6.56x10^5 J Mol^-1`

B

`9.84xx10^5 Jmol^-1`

C

`7.56xx10^5 Jmol^-1`

D

`8.51x 10^5 J mol^-1`

Text Solution

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The correct Answer is:
B
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