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Rutherford's scattering experiment is related to the size of the:
(1) Nucleus
(2) Atom
(3) Electron
(4) Neutron
Ans: Nucleus
calculate the enthalpy of combustion for acetic acid using standard enthalpies of formation.
How many types of colloidal system? and which are they?
Which type of bond is formed between similar atoms: (1) Ionic (2) Covalent (3) Coordinate (4) Metallic Ans: Covalent
Physical Properties of Acetic Acid (a) It is a colourless, at ordinary temperature, corrosive liquid along with a sharp pungent odour of vinegar. It has a sour taste. (b) Be
Effects of substituents on the acidity of phenols: Existence of electron attracting group, (for example -NO 2 , -X, - NR + 3 , -CN, -CHO, -COOH) on the benzene ring increases
Characteristic of co-ordinate compound
in borontriiodide distance between two I atoms is found to be 3.54. if radius of covalent bonded I atom is 1.33. what is covalent radius of boron
CLARK'S METHOD OR SOAP TITRATION METHOD: This method depends upon the fact that when soluble soap is added to hard water, constituent of hard water. Ca, Mg and other heavy metals
i want ti know all uses plz ....
Measure the combustion energies for the burning of 1 mol of propane and butane gas in air under these conditions. Calculate the efficiency of the combustion process as a functi
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