Soda lime is a mixture of____________________?
Correct answer: B. CaO and NaOH
- A. CaO and KOH
- B. CaO and NaOH
- C. NaOH and Na2O
- D. Na2O and KOH
Explanation
Soda lime is a mixture of sodium hydroxide and calcium oxide, NaOH + CaO; calcium oxide keeps the mixture dry and increases its effectiveness in decarboxylation. Students may choose KOH because potassium hydroxide is also a strong alkali, but soda lime specifically contains NaOH.
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About Alkanes
Alkanes are saturated hydrocarbons containing only carbon-carbon and carbon-hydrogen single bonds, with the general formula CnH2n+2 for open chains. Their structure, isomerism, IUPAC nomenclature, physical properties, combustion, free-radical halogenation and conformations are covered, including the difference between substitution in alkanes and addition in unsaturated hydrocarbons.
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