Question
Explain valence bond theory for coordination compounds.

Answer

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Similar questions

Explain on the basis of valence bond theory that $\left[ Ni ( CN )_4\right]^{2-}$ ion with square planar structure is diamagnetic and the $\left[ NiCl _4\right]^{2-}$ ion with tetrahedral geometry is paramagnetic.
Explain the various methods of determining the order of a reaction.
Explain the IUPAC method of nomenclature coordination compounds with examples.
a. Define the terms osmosis and osmotic pressure. Is the osmotic pressure of a solution a colligative property? Explain.
b. Calculate the boiling point of a solution prepared by adding $15.00\  g$ of $NaCl$ to $250.0\ g$ of water. ( $K _{ b }$ for water $=0.512 K kg mol ^{-1}$, Molar mass of $NaCl =58.44 g$ )
Match the items given in Column I and Column II.
 
Column I
 
Column II
i.
Saturated solution
a.
Solution having same osmotic pressure at a given temperature as that of given solution.
ii.
Binary solution
b.
A solution whose osmotic pressure is less than that of another.
iii.
Isotonic solution
c.
Solution with two components.
iv.
Hypotonic solution
d.
A solution which contains maximum amount of solute that can be dissolved in a given amount of solvent at a given temperature.
v.
Solid solution
e.
A solution whose osmotic pressure is more than that of another.
vi
Hypertonic solution
f.
A solution in solid phase.
Explain relationship between $E _{\text {cell }}^{\circ}$ and equilibrium constant with the help of Nernst equation.
An element has a body-centred cubic bcc structure with a cell edge of $288\ pm$. The density of the element is $7.2g/ cm^3$​​​​​​​. How many atoms are present in $208\ g$ of the element?
$(a)$ Give plausible explanation for each of the following$:$
$i.$ Why are amines less acidic than alcohols of comparable molecular masses?
$ii.$ Why are primary amines highest boiling than tertiary amines?
$iii.$ Why are aliphatic amines stronger bases than aromatic amines?
$(b)$ Complete the following reactions$:$
$i. C _6 H _5 N_2 Cl + C _2 H _5 OH \rightarrow$
$ii. C _6 H _5 NH _2+\left( CH _3 CO \right)_2 O \rightarrow$
Write the $S _{ N } 1$ mechanism of unimolecular nucleophilic substitution reaction.
Due to hectic and busy schedule, Mr. Angad made his life full of tensions and anxiety. He started taking sleeping pills to overcome the depression without consulting the doctor. Mr. Deepak, a close friend of Mr. Angad, advised him to stop taking sleeping pills and suggested to change his lifestyle by doing Yoga, meditation and some physical exercise. Mr. Angad followed his friend’s advice and after few days he started feeling better.
After reading the above passage, answer the following:
  1. What are the values (at least two) displayed by Mr. Deepak?
  2. Why is it not advisable to take sleeping pills without consulting doctor?
  3. What are tranquilizers? Give two examples.