Exams › JEE Advanced › Chemistry

Which gas is responsible for the turgidity of flower buds through the osmosis/capillary mechanism?

1. Sodium dioxide
2. Carbon monoxide
3. Carbon dioxide
4. Nitrogen dioxide

Correct answer: Carbon dioxide

Solution

Carbon dioxide (CO2) dissolves in the aqueous solution inside plant cells to form carbonic acid, which increases solute concentration, lowers water potential, and maintains the osmotic pressure responsible for turgidity in flower buds.

Related JEE Advanced Chemistry questions

• Which of the following contains the highest number of molecules?
• An organic compound with identical empirical and molecular formulas consists of 20% carbon, 6.7% hydrogen, 46.7% nitrogen, and the remainder as oxygen. When heated, it releases ammonia and leaves behind a solid residue. This residue produces a violet color when treated with an alkaline copper sulfate solution. Identify the compound.
• Which of the following statements accurately describe a hydrogen peroxide solution with a concentration of 17 g/L?
• When the kinetic energy of an electron is quadrupled, how does the wavelength of its associated de-Broglie wave change?
• An electron labeled e₁ is in the fifth energy level, while another electron labeled e₂ is in the fourth energy level. The orbital radius of e₁ is five times that of e₂. What is the ratio of the speed of e₁ (v₁) to the speed of e₂ (v₂)?
• If the minimum wavelength of the spectral line in the Lyman series for a hydrogen atom is X, what is the maximum wavelength of the spectral line in the Balmer series for a Li²⁺ ion?

⚔️ Practice JEE Advanced Chemistry free + battle 1v1 →