KCET · Chemistry · Carboxylic Acid Derivatives
\( 25 \mathrm{~cm}^{3} \) of oxalic acid completely neutralized \( 0.064 \mathrm{~g} \) of sodium hydroxide. Molarity of the
oxalic acid solution is
- A \( 0.045 \)
- B \( 0.032 \)
- C \( 0.064 \)
- D \( 0.015 \)
Answer & Solution
Correct Answer
(B) \( 0.032 \)
Step-by-step Solution
Detailed explanation
Given,
\(V\) (oxalic acid) \(=25 \mathrm{~cm}^{3}\)
\(W(N a O H)=0.064 g\)
\(M\) (oxalic acid) \(=?\)
Since, moles of oxalic acid \(=\) mole of \(N a O H\)
\(V\) (oxalic acid) \(\times N\) (oxalic acid) \(=\frac{w}{M}(N a O H)\)
\(\Rightarrow N\) ( oxalic acid) \(=\frac{0.064 \times 1000}{25 \times 40}=0.064\)
Normality \(=\) Molarity \(\times\) Basicity
\(\Rightarrow\) Molarity \(=\frac{0.064}{2}=0.32\)
Note: Basicity of oxalic acid is 2
\(V\) (oxalic acid) \(=25 \mathrm{~cm}^{3}\)
\(W(N a O H)=0.064 g\)
\(M\) (oxalic acid) \(=?\)
Since, moles of oxalic acid \(=\) mole of \(N a O H\)
\(V\) (oxalic acid) \(\times N\) (oxalic acid) \(=\frac{w}{M}(N a O H)\)
\(\Rightarrow N\) ( oxalic acid) \(=\frac{0.064 \times 1000}{25 \times 40}=0.064\)
Normality \(=\) Molarity \(\times\) Basicity
\(\Rightarrow\) Molarity \(=\frac{0.064}{2}=0.32\)
Note: Basicity of oxalic acid is 2
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- During the electrolysis of acidified water, \(16\) g of \(\text{O}_2\) gas is formed at anode. The volume of \(\text{H}_2\) gas liberated at cathode under STP conditions isKCET 2026 Medium
- Which one of these is not known ?KCET 2014 Hard
- Which of the following is an amphoteric oxide?KCET 2018 Hard
- A ligand which has two different donor atoms and either of the two ligates with the central metal atom/ion in the complex is called \(\qquad\)KCET 2025 Easy
- One mole of which of the following has the highest entropy?KCET 2008 Medium
- Arrange the following in the increasing order of their basic strengths \(\mathrm{CH}_{3} \mathrm{NH}_{2},\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\), \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{~N}, \mathrm{NH}_{3}\)KCET 2009 Easy
More PYQs from KCET
- A nuclear reactor delivers a power of \(10^9 \mathrm{~W}\), the amount of fuel consumed by the reactor in one hour isKCET 2022 Easy
- A \(0.15\) mole of pyridinium chloride has been added to \(500\text{ cm}^3\) of \(0.2\) M pyridine solution (a base). Assuming there is no change in volume upon mixing(Given: \(pK_b\) of pyridine = 8.82), the pH of the resulting solution isKCET 2026 Medium
- \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Cl} \stackrel{\text { Alc. } \mathrm{NH}_{3}}{\longrightarrow} A \stackrel{2 \mathrm{CH}_{3} \mathrm{Cl}}{\longrightarrow} B\). The product \(B\) isKCET 2021 Easy
- The number of values of \(\mathrm{c}\) such that the line \(y=4 x+c\) touches the curve \(\frac{x^{2}}{4}+y^{2}=1\) isKCET 2009 Easy
- Find the value of \(\int_{0}^{1} \frac{\log (1+x)}{1+x^{2}} d x\) isKCET 2020 Easy
- The statement that is NOT correct isKCET 2014 Easy