Q.51. The ratio of mass percentage (w/w) of C : H in a hydrocarbon is 12 : 1. It has two carbon atoms. The weight (in g)

Q.52. The first and second ionization constants of a weak dibasic acid are and respectively. 0.1 mol of was dissolve

Q.53. is isostructural with : Choose the correct answer from the options given below:

Q.56. At , 20.0 mL of 0.2 M weak monoprotic acid HX is titrated against 0.2 M NaOH. The pH of the solution (a) at the st