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Discuss "cohesive energy" and "electron affinity".
‘Cohesive energy’: In a chemical bond, it’s the energy required to dissociate a solid into isolated atoms or molecules as appropriate.
‘Electron affinity’ : In a system of a neutral atom and an extra electron, when extra electron is attracted from the infinity to the outer orbit of neutral atom, work done is known as electron affinity of the atom.
what is the difference between both independent and dependent variables?
explain resonance with examples.
The emf of the cell Cd/CdSO4(0.0093M)//CdSO4/Cd is 0.086V at 25°C find the value of X solution
Q. Explain about Extraction of metals? Extraction of metals is very often done by complex formation. For example, the cyanide process for the extraction of silver and gold is w
Q. What is Calcinations process? This is fie method of heating the concentrated ore in a limited supply of air to a high temperature but under the fusion temperature. In calcin
Uses of Glucose (a) Glucose is used in the conservation of fruits and making of jams and jellies. (b) Glucose is used in the preparation of confectionary and as a sweetening
240 g of water at 20 degree C are mixed with a sample of iron at 500 degree C. The final temperature of the system is 42 degree C. Find the mass of the iron sample
what is nobel gasses
(i) Assign appropriate reason for each of observations: (a) Anhydrous ALCI is used as a catalyst. (b) Phosphinic acid behaves as a monoprotic acid. (c) SF6 is not easily h
Explain in words why hydroboration leads to anti-Markovnikov addition of hydrogen whereas most electrophilic addtions to alkenes result in Markovnikov addition.
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