The correct order of number of unpaired electrons in the ions Cu2+, Ni2+, Fe3+ and Cr3+ is

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#Question id: 20109

#XL - P Chemistry

The occurrence of a reaction is impossible if

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#Question id: 20110

#XL - P Chemistry

Identify the correct statement regarding entropy

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#Question id: 20111

#XL - P Chemistry

A container has hydrogen and oxygen mixture in ratio of 4 : 1 by weight, then

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#Question id: 20112

#XL - P Chemistry

The second law of thermodynamics says that in cyclic process.

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#Question id: 20113

#XL - P Chemistry

A heat engine absorbs heat Q1 at temperature T1 and heat Q2 at temperature T2. Work done by the engine is (Q1 + Q2). This data

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#Question id: 20114

#XL - P Chemistry

The molar neutralization heat for and as compared to molar neutralization heat of NaOH and HCl