ko aung lay s chem

in #lsc7 years ago

(i) CH3-CH2-COONa + NaOH → ?

       (ii) CH3-CH2-OH          H2SO4(conc)      ?            

       (iii) CH3-CH2-OH         Al2O3         ?

Give an account on the manufacture of sodium by Down process.
(f) Describe the laboratory preparation of iodine with a suitable diagram.
(g) 6.5 g of a mixture of sodium chloride and anhydrous sodium carbonate were made up to 500 cm3 of
aqueous solution. 25cm3 of this solution required 20 cm3 of 0.104M sulphuric acid for neutralization.
Calculate the percentage by mass of sodium chloride in the mixture.(C =12,O =16,Na =32).
(h) Discuss the extraction of lead from its corresponding ore.

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