Define molar mass and explain its significance in stoichiometric calculations. Calculate the molar mass of H2O.
Explain the primary, secondary, and tertiary structures of proteins. How do these structures contribute to the function of proteins?
Explain the mechanism of nucleophilic addition reactions in aldehydes and ketones. Why are aldehydes generally more reactive than ketones?
Describe the acidic nature of phenol and compare it with the acidity of alcohols. Why is phenol more acidic?
Explain the SN1 and SN2 mechanisms of nucleophilic substitution reactions with examples.
Define the term coordination number. Describe the structure and geometry of a complex with coordination number 6.
Explain the process of froth flotation and its use in metallurgy.
Differentiate between adsorption and absorption. Describe the factors affecting the extent of adsorption on the surface of a solid.
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