ExamBro
ExamBro
enEnglishhiहिन्दीguગુજરાતી
JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry

એસિડિક માધ્યમમાં \(15\, mL\) \(Fe ^{2+}\)નું જલીય દ્રાવણ \(20\, mL\) \(0.03\, M\) જલીય \(Cr _{2} O _{7}^{2-}\) સાથે સંપૂર્ણપણે પ્રક્રિયા આપે છે. \(Fe ^{2+}\) દ્રાવણની મોલારિટી  ...........  \(\times 10^{-2} M\) છે.

  1. A \(32\)
  2. B \(20\)
  3. C \(24\)
  4. D \(42\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(24\)

Step-by-step Solution

Detailed explanation

\(n _{ eq } Fe ^{2+}= n _{ eq } Cr _{2} O _{7}^{2-}\) or, \(\left(\frac{15 \times M _{ Fe ^{2+}}}{1000}\right) \times 1=\left(\frac{20 \times 0.03}{1000}\right) \times 6\) \(\therefore M _{ Fe ^{2+}}=0.24 M =24 \times 10^{-2} M\)
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app