Chemistry Test ...

At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60 K. The molecular weight of the gas Y is

Among cellulose, poly(vinyl chloride), nylon and natural rubber, the polymer in which the intermolecular force of attraction is weakest is

p-Amino-N, N-dimethylaniline is added to a strongly acidic solution of X. The resulting solution is treated with afew drops of aqueous solution of Y to yield blue coloration due to the formation of methylene blue. Treatment of theaqueous solution of Y with the reagent potassium hexacyanoferrate (II) leads to the formation of an intense blueprecipitate. The precipitate dissolves on excess addition of the reagent. Similarly, treatment of the solution of Y withthe solution of potassium hexacyanoferrate (III) leads to a brown coloration due to the formation of Z. The compound Y is

The term that corrects for the attractive forces present in a real gas in the van der Waals equation is

The correct acidity order of the following is

 

Isopropyl methyl ether when treated with cold hydrogen iodide gives