Question
Explain the elimination reaction of haloalkanes.

Answer

self

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Similar questions

Match the items of Column I and Column II.
  Column I   Column II
(i) Mathematical expression for rate of reaction. (a) Rate constant.
(ii) Rate of reaction for zero order reaction is equal to. (b) Rate law.
(iii) Units of rate constant for zero order reaction is same as that of. (c) Oder of slowest step.
(iv) Order of a complex reaction is determined by. (d) Rate of a reaction.
  1. Define the following terms:
  1. Molarity.
  2. Molal elevation constant(Kb).
  1. A solution containing 15 g urea (molar mass = 60 g mol–1) per litre of solution in water has the same osmotic pressure (isotonic) as a solution of glucose (molar mass = 180 g mol–1) in water. Calculate the mass of glucose present in one litre of its solution.
  1. Name the element of 3d transition series which shows maximum number of oxidation states. Why does it show so?
  2. which transition metal of 3d series has positive Eo(M2+/M) value and why?
  3. Out of Cr3+ and Mn3+, which is a stronger oxidizing agent and why?
  4. Name a member of the lanthanoid series which is well known to exhibit +2 oxidation state.
  5. Complete the following equation:

MnO-4+8H++5e-$→$

Assign reasons for the following:
  1. The enthalpies of atomisation of transition elements are high.
  2. The transition metals and many of their compounds act as good catalyst.
  3. From element to element the actinoid contraction is greater than the lanthanoid contraction.
  4. The E0 value for the Mn3+/Mn2+ couple is much more positive than that for Cr3+/Cr2+.
  5. Scandium (Z = 21) does not exhibit variable oxidation states and yet it is regarded as a transition element.
Which forces are responsible for the stability of $\alpha-\text{helix}?$ Why is it named as 3.613 helix?
Explain the cyclic structure of glucose.
A voltaic cell is set up at 25°C with the followinng half-cell:
Al | Al3+ (0.001M) and Ni | Ni2+ (0.50M)
Calculate the cell voltage $\text{E}^{\circ}_{\text{Ni}^{2+}/\text{Ni}}\Big[=-0.25\text{V,E}^{\circ}_{\text{Al}^{3+}/\text{Al}}=-1.66\text{V}\Big]$
Answer the following questions:

Account for the following:

  1. Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.
  2. Diazonium salts of aromatic amines are more stable than those of aliphatic amines.
Match the terms given in Column I with the units given in Column II.

 
Column I

 

Column II

i.

$\text{K}$

a.

$\text{I}\times\text{t}$

ii.

$\wedge_{\text{m}}$

b.

$\frac{\wedge_{\text{m}}}{\wedge^\circ_\text{m}}$

iii.

$\alpha$

c.

$\frac{\text{k}}{\text{c}}$

iv.

$\text{Q}$

d.

$\frac{\text{G}^*}{\text{R}}$

What is crystal field theory? On the basis of this, explain the crystal field splitting in octahedral coordinaton compounds.