Exams › JEE Main › Chemistry

Compared with the zeolite method used to eliminate permanent hardness, the synthetic resin technique is:

1. less effective because it exchanges only anions
2. more effective because it can exchange both cations and anions
3. less effective because the resins cannot be regenerated
4. more effective because it can exchange only cations

Correct answer: more effective because it can exchange both cations and anions

Solution

The synthetic resin technique is superior because it has the capability to exchange both cations and anions, allowing it to address a wider range of hardness-causing minerals compared to the zeolite method, which primarily focuses on cation exchange.

Related JEE Main Chemistry questions

• A sulphuric acid solution has a concentration of 3.60 M and contains 29% H2SO4 by mass. If the molar mass of H2SO4 is 98 g mol⁻¹, what is the density of the solution in g mL⁻¹?
• Which one of the following substances is absent in clear hard water?
• Fractional distillation is chosen in a situation where
• Car radiators use an aqueous ethylene glycol solution as antifreeze. How much ethylene glycol should be mixed with 5 kg of water so that the freezing point is lowered to -0.3 °C? (K_f = 1.86 K kg mol⁻¹)
• A solution contains a non-volatile solute of molecular mass M₂. Which expression can be used to determine the molecular mass of the solute using osmotic pressure?
• At 298 K, the Henry’s law constant for oxygen is 1.4 × 10⁻³ mol L⁻¹ atm⁻¹. If oxygen is at a partial pressure of 0.5 atm, what mass of oxygen will dissolve in 100 mL of water at 298 K?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →