AP EAMCET · Chemistry · Solutions
A \(25 \%\) solution of cane-sugar (molar mass \(=342 \mathrm{~g} \mathrm{~mol}^{-1}\) ) is isotonic with \(5 \%\) solution of a substance \(A\). Then find the molecular weight of \(A\).
- A \(6.84 \mathrm{~g} \mathrm{~mol}^{-1}\)
- B \(68.4 \mathrm{~g} \mathrm{~mol}^{-1}\)
- C \(25 \mathrm{~g} \mathrm{~mol}^{-1}\)
- D \(684 \mathrm{~g} \mathrm{~mol}^{-1}\)
Answer & Solution
Correct Answer
(B) \(68.4 \mathrm{~g} \mathrm{~mol}^{-1}\)
Step-by-step Solution
Detailed explanation
Two solutions are isotonic when they have the same osmotic pressure. It is only possible when they have same molar concentration. A \(25 \%\) solution of cane-sugar means \(100 \mathrm{~g}\) of solution contain \(25 \mathrm{~g}\) of cane-sugar. For dilute solution…
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
- Identify the air pollutant which in high concentration leads to stiffness of flower buds?AP EAMCET 2025 Easy
- For one mole of an ideal gas an isochore is obtained. The slope of the isochore is \(0.082 \mathrm{~atm} \mathrm{~K}^{-1}\). What will be its pressure (in atm) when the temperature is \(12.2 \mathrm{~K} ?\left(\mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}\right)\).AP EAMCET 2025 Medium
- Which of the following statements are correct for classification of elements?
I. The properties of elements are periodic functions of their atomic numbers.
II. Non-metallic elements are less in number than the metallic elements.
III. The first ionisation energies of elements along a period do not vary in a regular manner.
IV. The ground state electronic configuration of \(\mathrm{Pd}(Z=46)\) is \([\mathrm{Kr}] 4 d^8 5 s^2\).AP EAMCET 2019 Easy - Hybridisation of oxygen in diethyl ether isAP EAMCET 2007 Easy
- Which of the following sets of species have similar bond order?AP EAMCET 2020 Medium
- Which one of the following contains \(-\mathrm{As}=\mathrm{As}-\) in its structure?AP EAMCET 2019 Easy
More PYQs from AP EAMCET
- Which one of the following statements regarding helium is not correct?AP EAMCET 2019 Medium
- The de-Broglie wavelength of a tennis ball of mass \(60 \mathrm{~g}\) moving with a velocity of \(10 \mathrm{~ms}^{-1}\) is approximately ____ (Planck's constant \(\left.h=6.63 \times 10^{-34} \mathrm{~J} . \mathrm{s}\right)\)AP EAMCET 2020 Easy
- The resultant magnetic moment of three magnetic dipoles, each of the magnetic moment \(M\) shown in the arrangement is
AP EAMCET 2019 Easy - If the focal chord of the hyperbola subtends a right angle at the center, then its eccentricity isAP EAMCET 2021 Medium
- If \(x=3-2 \sqrt{3} i\), then \(x^4-12 x^3+54 x^2-108 x-54=\)AP EAMCET 2025 Medium
- The coordinates of the centre of mass of a uniform L shaped plate of mass 3 kg shown in the figure is
AP EAMCET 2025 Medium