Chemistry

The elevation of boiling point of 0.10 m aqueous CrCl₃·xNH₃ solution is two times that of 0.05 m aqueous CaCl₂ solution. The value of x is [numerical value]. [Assume 100% ionisation of the complex and CaCl₂, coordination number of Cr as 6, and that all NH₃ molecules are present inside the coordination sphere]

In Carius method of estimation of halogen, 0.172 g of an organic compound showed presence of 0.08 g of bromine. Which of these is the correct structure of the compound?

Potassium chlorate is prepared by the electrolysis of KCl in basic solution 6OH⁻+Cl⁻→ClO₃⁻+3H₂O+6e⁻. If only 60% of the current is utilized in the reaction, the time (rounded to the nearest hour) required to produce 10 g of KClO₃ using a current of 2 A is [numerical value] (Given: F=96,500 Cmol⁻¹; molar mass of KClO₃=122 g mol⁻¹)

In an estimation of bromine by Carius method, 1.6 g of an organic compound gave 1.88 g of AgBr. The mass percentage of bromine in the compound is [numerical value] (Atomic mass, Ag=108, Br=80 g mol?¹)

The IUPAC name for the following compound is:

Consider the following reactions A→P1; B→P2; C→P3; D→P4.

The order of the above reactions are a,b,c and d, respectively. The following graph is obtained when log[rate] vs log[conc.] are plotted.

 Among the following, the correct sequence for the order of the reactions is:

On heating compound (A) gives a gas (B) which is a constituent of air. This gas when treated with H? in the presence of a catalyst gives another gas (C) which is basic in nature. (A) should not be:

The species that has a spin-only magnetic moment of 5.9BM, is: (Td=tetrahedral)

The major aromatic product C in the following reaction sequence will be :

For the reaction Fe₂N(s) + (3/2)H₂(g) ⇌ 2Fe(s) + NH₃(g)