JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
In the sulphur estimation, \(0.471\, \mathrm{~g}\) of an organic compound gave \(1.44\, \mathrm{~g}\) of barium sulphate. The percentage of sulphur in the compound is \(......\%\). (Nearest integer) (Atomic Mass of \(\mathrm{Ba}=137 \,\mathrm{u})\)
- A \(142\)
- B \(42\)
- C \(471\)
- D \(233\)
Answer & Solution
Correct Answer
(B) \(42\)
Step-by-step Solution
Detailed explanation
Molecular mass of \(\mathrm{BaSO}_{4}=233 \,\mathrm{~g}\) \(\because 233 \,g\,\mathrm{BaSO}_{4}\) contain \(\rightarrow 32\, \mathrm{~g}\) sulphur \(\therefore 1.44\, \mathrm{~g} \,\mathrm{BaSO}_{4}\) contain \(\rightarrow \frac{32}{233} \times 1.44\, \mathrm{~g}\) sulphur given…
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 orange colour of \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) and purple colour of \(\mathrm{KMnO}_4\) is due to _______.JEE Mains 2024 Hard
- An octahedral complex of \(Co^{3+}\) is diamagnetic. The hybridisation involved in the formation of the complex isJEE Mains 2014 Hard
- In the Victor-Meyer's test, the colour given by \(1^o, 2^o\) and \(3^o\) alcohols are respectivelyJEE Mains 2014 Hard
- The molarity of \(\mathrm{HNO}_{3}\) in a sample which has density \(1.4 \;\mathrm{g} / \mathrm{mL}\) and mass percentage of \(63 \%\) is ______ \(\mathrm{M}\) થશે. (Molecular Weight of \(\mathrm{HNO}_{3}=63\) )JEE Mains 2020 Hard
- The \(\mathrm{Eu}^{2+}\) ion is a strong reducing agent in spite of its ground state electronic configuration (outermost) : [Atomic number of \(\mathrm{Eu}=63\) ]JEE Mains 2021 Easy
- Match List\(-I\) with List\(-II\)
Choose the correct answer from the options given below:List\(-I\) List\(-II\) \((A)\) Spontaneous process \((I)\,\Delta H < 0\) \((B)\) Process with \(\Delta P =0 \;\Delta T =0\) \((II)\,\Delta G _{ T , P } < 0\) \((C)\,\Delta H _{reaction}\) \((III)\) Isothermal and isobaric process \((D)\) Exothermic process \((IV)\) [Bond energies of molecules in reactants] - [Bond energies of product molecules] JEE Mains 2022 Medium
More PYQs from JEE Mains
- Two plane polarized light waves combine at a certain point whose electric field components are :
\(\begin{aligned} & \mathrm{E}_1=\mathrm{E}_0 \sin \omega \mathrm{t} \\ & \mathrm{E}_2=\mathrm{E}_0 \sin \left(\omega \mathrm{t}+\frac{\pi}{3}\right)\end{aligned}\)
Find the amplitude of the resultant wave.JEE Mains 2025 Easy - Which of the following binary mixture does not show the behaviour of minimum boiling azeotropes?JEE Mains 2025 Easy
- For the two cells having same EMF E and internal resistance r, the current passing through the external resistor 6 \(\Omega\) is same when both the cells are connected either in parallel or in series. The value of internal resistance r is ___________ \(\Omega\).JEE Mains 2026 Hard
- In Friedel-Crafts alkylation of aniline, one gets ....JEE Mains 2022 Medium
- Half life of zero order reaction \(\mathrm{A} \rightarrow\) product is 1 hour, when initial concentration of reaction is \(2.0 \mathrm{~mol} \mathrm{~L} \mathrm{~L}^{-1}\). The time required to decrease concentration of A from 0.50 to \(0.25 \mathrm{~mol} \mathrm{~L}^{-1}\) is _______.JEE Mains 2025 Easy
- One side of an equilateral prism is painted by a transparent material of refractive index \(n_2\). The refractive index of prism is \(1.6\). The minimum value of \(n_2\) required for total internal reflection from painted face is _______.
JEE Mains 2026 Hard