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This of the following substances has giant covalent structure:
(1) Iodine crystal
(2) Solid co2
(3) Silica
(4) White phosphorus
Ans: Silica co2
Explain the un-ionized form of vanillin It is the un-ionized form of vanillin that has the typical odor. In NaOH solution, the phenol group ofvanillin ionizes to its conjugate
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Coordination no. is the no. assigned to an atom which tells us that how many other atoms are directly attached to it. eg. Pcl5 the cordination no. will be 5
Chemical methods - Purification of organic compounds Besides these physical methods, few chemical methods have as well been utilized to separate a mixture of organic compounds.
1) A 100 mL 0.4M acetic acid soln is titrated with 0.5M NaOH. Write a reaction equation to work the following: a) What volume of the base would be required to reach the equivalenc
H+
i just need to know if anyone that might know of a website that has the answer key to the book chemistry Prentice Hall Brief Review 2013
Explain DTA
Sodium alkyl sulphates - Oils and Fats These types of detergents are sodium salts of sulphuric acid esters of long chain aliphatic alcohols consisting of generally 10 to 15 car
what is trihydric phenol and hownit is works
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