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Which of the following is the correct order of enthalpy of atomisation of 3d-series? (1) Ni > Cu > Mn > Zn

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Which of the following is the correct order of enthalpy of atomisation of 3d-series?

(1) Ni > Cu > Mn > Zn

(2) Zn > Cu > Mn > Ni

(3) Cu > Mn > Ni > Zn

(4) Mn > Ni > Cu > Zn

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1 Answer

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Correct option is : (1) Ni > Cu > Mn > Zn

The enthalpy of atomisation of

Ni = 430 kJ/mol

Cu = 339 kJ/mol

Mn = 281 kJ/mol

Zn = 186 kJ/mol

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