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General Tests of Esters
(a) Esters has sweet smell
(b) Esters is neutral towards litmus
(c) A pink colour is developed while one or two drops of phenolphthalein are added to dilute sodium hydroxide solution. The pink colour is discharged while shaken or warmed along with ethyl acetate.
Explain heat of Combustion? Ans) The amount of heat liberated when single mole of any substance is completely burnt in oxygen is known as heat of combustion H is negative for he
Total number of unpaired electrons in an atom of atomic number 29 is: (1) 1 (2) 3 (3) 4 (4) 2 Ans: 1
characteristics of group 13 elements
Octane number - Characteristics of hydrocarbons It is utilized for measuring the knocking character of fuel utilized in petrol engine. The octane quantity of an offered sample
How to find stability of carbocations in benzene ring..??? How to find optically inactive isomers ??? (say of--C2H5Cl) How to find the weakest C-X (carbon-halogen bond in a benz
what r identification tests for lipids which involve water in their tests n their biological use in human body
when a 0.800g sample of cacl2 is dissolved in 9.85g of water in a microscale calorimeter, the temperature of the solution rose from 23.4 to 35.8
An element has electronic configuration 2, 8, 18, 1. If its atomic weight is 63, then how many neutrons will be present in its nucleus: (1) 30 (2) 32 (3) 34
how i can prepare assignment .
Fe+ AgNO3-->Fe(NO3)2 + Ag
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