Chemistry Test ...

When initial concentration of a reactant is doubled in a reaction its half-life period is not affected. The order of the reaction is

What is the activation energy for a reaction if its rate doubles when the temperature is raised from 20°C to 35°C? (R = 8.314Imol⁻¹K⁻¹)

In a zero-order reaction for every 10°C rise of temperature, the rate is doubled. If the temperature is increased from 10°C to 100°C, the rate of the reaction will become

The unit of rate constant for a zero order reaction is

Which one of the following statements for the order of a reaction is incorrect?

A 0.0020 m aqueous solution of an ionic compound [Co(NH₃)₅(NO₂)]Cl freezes at - 0.00732^oC. Number of moles of ions which 1 mol of ionic compound produces on being dissolved in water will be :

he boiling point of 0.2 mol kg^-1 solution of X in water is greater than an equimolal solution of Y in water. Which one of the following statements is true in this case?

Which of the following compounds corresponds Van't Hoff factor (i) to be equal to 2 for dilute solution?

Acetone has a vapour pressure of 185.2 mm Hg and ether 443.5 mm Hg at 20ºC. For a liquid mixture of acetone and ether containing 0.457 mole fraction of acetone, the partial pressure of ether is:

The boiling point of pure water is 373.15 K. If 32.5 g of KCN is dissolved in 100 mL of H₂O, then what is the boiling point of the solution? (Assume that molarity =molality)

(K_b for H₂O = 0.52 K kg mol⁻¹)(Molar mass of KCN = 65 gm mol⁻¹)