Inorganic Chemistry Answers

Calculate the effect on the ph after the adding of 0.006mol of HCL at 300ml a buffer which is 0.250M in CH^(3)COOH and 0.560M in NAHCH^(3)COO.

Alkali metals react with sulphur to form ---- types of sulphides

How to calculate the ionisation energy of hydrogen atom using bohr's theory?

An orbital can have at the most two electrons of opposite spin can be called the

Explain why pi-pi* transitions are the most useful transition in UV-Vis spectroscopy?

2. Using your knowledge of group theory and MO theory:
a. Determine the point group of the pentagonal planar XeF5- anion.

b. Draw the ligand group orbitals (LGOs) that contribute to the Xe-F bonding in this molecule, and indicate their symmetry labels.

c. Draw an MO diagram for the complex from part a, including the LGOs, Xe AOs, and lines indicating which LGOs and AOs contribute to each MO .

d. Assign formal charges to the Xe atom and each F atom in the complex from part a, and determine the Xe-F bond order .

e. Using your MO diagram from part c, predict the effect that reacting XeF5- with F2 to form the hypothetical pentagonal bipyramidal complex XeF7- would have on the MO energies/symmetries, and indicate the change in bond order between the Xe and F atoms (if any).

Which will not be precipitated after addition of
Ammonium carbonate in presence of NH4CI :-

(1) Mg (2) Ba

(3) Ca (4) Sr

One half of the distance between the nuclei of two adjacent metal atoms in a close crystal lattice is called

The positions of K and Ar,Co and Ni do not remain anomalous any longer since --------- is used in arranging the elements.

Question 1 : _____is defined as one-half of the distance between the nuclei of two adjacent metal atoms in the close packed crystal lattice
atomic radius
ionic radius
covalent radius
metallic radius
Question 2 : Which of these increases solubility of compounds
a small cation and a large anion
a small cation and anion
a large cation and anion
two cations
Question 3 : The charge on cations------ down a group
increases
does not have a fixed pattern
decreases
remains constant
Question 4 : Increase in principal quantum number(n) means-----of the atomic radii
shrinking
increase
no change
decrease
Question 5 : A consequence of ------- is the formation of a chelate ring
intramolecular covalent bonding
intermolecular covalent bonding
intermolecular hydrogen bonding
intramolecular hydrogen bonding