MY CART (5)

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price:

There are no items in this cart.
Continue Shopping
                   












Criteria of purity of organic compounds

6 years ago

Share

Answers : (1)

                                        












After purification, the test of purity of an organic compound is the nest important step. A pure organic compound possesses characteristic physical properties such as refractive index, specific gravity, boiling point, crystalline structure and melting point. If a purified sample shows the same properties that the pure substance is known to possess, it may be considered as pure and no further purification is required. However for practical purpose in laboratory only melting point and boiling point are used as criteria for purity.


A pure organic solid has a definite and sharp (sudden, rapid and complete) melting point, while an impure substance has a lower and indefinite melting point.


The melting point of a solid may be defined as the temperature at which the solid and liquid states of the compound are in equilibrium with each other at an external pressure of l atmosphere.

6 years ago

Post Your Answer

More Questions On Organic Chemistry

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
Does acetyl chloride give iodoform test?and why?
 
 
YES and NO.In some questions if heat is given then Qc is favouring forward reactions and reaction proceeds.
 
dev 4 months ago
 
YES and NO.In some questions if heat is given then Qc is favouring forward reactions and reaction proceeds.
 
dev 4 months ago
Ph(CH2)(CH=CH2) + HBr = ?
 
 
First carbocation will e formed and then it will rearrange after rearrangement product Ph – CHBr – CH2 – CH3 will be formed. plz approve!
 
vikas yadav 5 months ago
 
(Ph)CH2-CHBrCH2-CH3
 
narenchemistry 5 months ago
In the following hypothetical reaction A + 3B   2C + D, initial moles of A is twice that of B. If at equilibrium moles of B and C are equal, % of B reacted is (A) 10% (B) 20% (C) 40%...
 
 
A + 3B ----- 2C + D initially 1 1 0 0 let x moles of B be consumed at equillibrium equilli 1-x 1-3x 2x x given 1-3x=2x x=1/5 it means 3/5 moles are consumed which means 60 % Herre B is the...
 
Havishma Haranath 6 months ago
 
A + 3B ----- 2C + D initially 1 1 0 0 let x moles of B be consumed at equillibrium equilli 1-x 1-3x 2x x given 1-3x=2x x=1/5 it means 3/5 moles are consumed which means 60 % Herre B is the...
 
Havishma Haranath 6 months ago
 
A + 3B ----- 2C + D initially 1 1 0 0 let x moles of B be consumed at equillibrium equilli 1-x 1-3x 2x x given 1-3x=2x x=1/5 it means 3/5 moles are consumed which means 60 % Herre B is the...
 
Havishma Haranath 6 months ago
Why Eu ropium shows a sudden increase in atomic radius. (At. Radius of Sm = 180pm , Eu = 199pm and Gd = 180 pm)?
 
 
Actually there is confusion in you.The atomic radius which I found was all the same for the three element as 180 pm. Lets see,there is a decrease in atomic radius There is a decrease in the...
  img
Sunil Kumar FP 7 months ago
 
@Sunil Kumar FP Go to this link and check Table 8.9 on pg.229 ncertbooks.prashanthellina.com/class_12.Chemistry.ChemistryI/8.pdf
 
Shibashis Mallik 7 months ago
The initial prssure of COCl2 is 1000 torr.The total pressure of the system becomes 1500 torr.when the equilb COCl2(g)=CO(g) + Cl2(g).(reversible) is attained at constant temp.The value of Kp...
 
 
The given reaction is : CoCl2(g).......................................=.......CO(g).....+.....Cl2(g) 1000...
  img
Naveen Kumar 7 months ago
 
COCl2 -------> CO + Cl2 1000 torr (initial) 1000(1-x) 1000x 1000x Total pressure= 1000(1+x) = 1500 x= 0.5 or (50% dissociation) Kp= (pCl2)(pCO)/(pCOCl2) = 500 X 500 /500 you will get the...
  img
Ramreddy 7 months ago
Explain the concept of banana/tau bonding.
 
 
Bananas are fun things, those of you who might have thought that I have changed into Sean Banancan relax and breathe easy again. I am here to talk about the banana bond. This is the informal...
  img
Harishwar 7 months ago
 
It was a bit complicated.. However.. I have read that Banana bond is a result of partial sharing of two hydrogen atoms by two boron atoms.. And the bent that appears, is it because of the...
 
ANMOL SETH 7 months ago
View all Questions »