Chemistry

Percentage packing fraction of diamond is x (approximately), and the number of particle per unit cell is y. Then the value of x + y is

Number of Cl=O bonds in chlorous acid, chloric acid and perchloric acid respectively are:

0.25 M solution of pyridinium chloride C₅H₆N⁺Cl⁻ was found to have a pH of 2.699. if the value of Kₑ of pyridine C₅H₅N is a * 10⁻¹⁰, then the value of a is (given, 10⁻².⁶⁹⁹ = 2 * 10⁻³)

Out of following the number of complexes which are diamagnetic is / are
(i) [Co(H₂O)₆]Cl₃
(ii) [Co(NH₃)₆]Cl₂
(iii) [Fe(CO)₅]
(iv) [Ni(NH₃)₆]²⁺
(v) K₂[NiF₆]
(vi) K₂[PtCl₄]
(vii) Na₂[ZnCl₄]

If X metal atoms occupying the corners, Y atom at cube centre and Z atoms at the centres of the edges, then if the co-ordination number of X w.r.t. Z is a and that of Y w.r.t. Z is b, then the value a + b is

Consider the above reaction, and choose the correct statement:

Biochemical Oxygen Demand (BOD) is the amount of oxygen required (in ppm)

Which polymer has 'chiral' monomer(s)?

Kindly consider the following

Choose the correct answer from the options given below:

The following acids have been arranged in the decreasing order of their acid strength. Identify the correct order.
I. ClOH
II. BrOH
III. IOH