JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
In an estimation of sulphur by Carius method \(0.2\) g of the substance gave \(0.6\) g of BaSO\(_4\). The percentage of sulphur in the substance is _____ %.
(Given molar mass in g mol\(^{-1}\) S : \(32\), BaSO\(_4\) : \(233\))
- A 41
- B 42
- C 43
- D 44
Answer & Solution
Correct Answer
(A) 41
Step-by-step Solution
Detailed explanation
Mass of the organic compound, \(W = 0.2\) g Mass of \(\text{BaSO}_4\) formed, \(m = 0.6\) g Molar mass of \(\text{BaSO}_4 = 233 \text{ g mol}^{-1}\) Molar mass of \(\text{S} = 32 \text{ g mol}^{-1}\) The percentage of sulphur in the organic compound is given by the formula:…
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
- The number of species having non-pyramidal shape among the following is \((A)\) \({SO}_{3}\) \((B)\) \({NO}_{3}^{-}\) \((C)\) \({PCl}_{3}\) \((D)\) \({CO}_{3}^{2-}\)JEE Mains 2021 Easy
- The hybridization and magnetic behaviour of cobalt ion in \(\left[ Co \left( NH _3\right)_6\right]^{3+}\) complex, respectively isJEE Mains 2023 Medium
- Identify correct conversion during acidic hydrolysis from the following :
(A) starch gives galactose.
(B) cane sugar gives equal amount of glucose and fructose.
(C) milk sugar gives glucose and galactose.
(D) amylopectin gives glucose and fructose.
(E) amylose gives only glucose.
Choose the correct answer from the options given below :JEE Mains 2025 Medium - White Phosphorus on reaction with concentrated \(NaOH\) solution in an inert atmosphere of \(\mathrm{CO}_{2}\) gives phosphine and compound \((\mathrm{X}) .(\mathrm{X})\) on acidification with \(HCl\) gives compound \((Y)\). The basicity of compound \((Y)\) isJEE Mains 2020 Hard
- A salt with few drops of conc. HCl gives apple green colour in flame test. The group precipitate of the salt is dissolved in acetic acid and treated with \(K_2CrO_4\) to give yellow precipitate. When the sodium carbonate extract of the salt solution is heated with conc. \(HNO_3\) and ammonium molybdate, it resulted a canary yellow precipitate. The cation and anion present in the salt are respectively,JEE Mains 2026 Medium
- The solubility of \(AgCl\) will be maximum in which of the following?JEE Mains 2022 Medium
More PYQs from JEE Mains
- Incorrect method of preparation for alcohols from the following is:JEE Mains 2023 Medium
- Let \(f(x)\) be a quadratic polynomial such that \(f(-2)\) \(+f(3)=0\). If one of the roots of \(f(x)=0\) is \(-1\), then the sum of the roots of \(f(x)=0\) is equal toJEE Mains 2022 Hard
- A uniform wire of length \(l\) of weight \(w\) is suspended from the roof with a weight of \(W\) at the other end. The stress in the wire at \(\dfrac{l}{3}\) distance from the top is \(\left(\dfrac{W}{A} + \dfrac{2}{\gamma}\dfrac{w}{A}\right)\), where, \(A\) is the cross sectional area of the wire. The value of \(\gamma\) is _______.JEE Mains 2026 Medium
- Let \(P\) be a point on the ellipse \(\frac{x^2}{9}+\frac{y^2}{4}=1\). Let the line passing through \(P\) and parallel to \(y\)-axis meet the circle \(x^2+y^2=9\) at point \(Q\) such that \(P\) and \(Q\) are on the same side of the \(x\)-axis. Then, the eccentricity of the locus of the point \(R\) on \(P Q\) such that \(P R: R Q=4: 3\) as \(P\) moves on the ellipse, is :JEE Mains 2024 Medium
- Let \(f(x)\) be a differentiable function at \(x=a\) with \(f^{\prime}(a)=2\) and \(f(a)=4\). Then \(\lim _{x \rightarrow a} \frac{x f(a)-a f(x)}{x-a}\) equals ...... .JEE Mains 2021 Medium
- An observer moves towards a stationary source of sound with a velocity equal to one-fifth of the velocity of sound. The percentage change in the frequency will be \(\dots \;\)%JEE Mains 2022 Medium