Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

What mass ofN2H4can be oxidised toN2by 24.0 gK2CrO4, which is reduced toCr(OH)4-  (Given: Molar mass of K 2 CrO 4  = 194.2 )

Options:

Answer:
B
Solution:

N22-⟶N20+ 4e
Cr6++ 3e  ⟶Cr3+
Meq. ofN2H4= Meq. ofK2CrO4
w   32/4× 1000 =24194.2/3×1000E. wt =M wt.valence factor 
w N 2 H 4 = 2.97 g

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Redox ReactionsSubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: PYQ_2020

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