Chemistry-
General
Easy
Question
The no. of d-electrons present in Fe2+ ions is
- 6
- 4
- 8
- 3
The correct answer is: 6
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How many moles of electron is needed for the reduction of each mole of Cr in the reaction.
CrO5 + H2SO4 
Cr2(SO4)3 + H2O + O2
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ion
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The deep blue colour obtained on adding K3Fe(CN)6 to ferrous sulphate is due to the formation of
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The following data were obtained for the thermal decomposition of nitrous oxide on finely divided gold
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75% of a first order reaction was completed in 32 minute; when was 50% of the reaction completed?
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