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

\(50 \,mL \,\,1\, M \,H _{3} PO _{3}\) के तथा \(100\,mL , \,\,2 \,M \,H _{3} PO _{2}\) के विलयनों के उदासीनीकरण के लिए \(1\, M\, NaOH\) विलयन के सही आवश्यक आयतन क्रमशः है

  1. A \(100 \,mL\) तथा  \(100\, mL\)
  2. B \(100 \,mL\) तथा  \(50\, mL\)
  3. C \(100\, mL\) तथा  \(200 \,mL\)
  4. D \(50\, mL\) तथा  \(50 \,mL\)
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Answer & Solution

Correct Answer

(C) \(100\, mL\) तथा  \(200 \,mL\)

Step-by-step Solution

Detailed explanation

\(H _{3} PO _{3}+2 NaOH \rightarrow Na _{2} HPO _{3}+2 H _{2} O\) \(\begin{array}{ll}50\, ml & 1\, M \\ 1\, M & V =?\end{array}\) \(\Rightarrow \frac{ n _{ NaoH }}{ n _{ H _{3} PO _{3}}}=\frac{2}{1}\)…
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