Answer:
secound one is the answer: Distillation
this may help you
It is melting point process
Answer:
The correct answer is D sp2 and sp3
Explanation:
Acetic acid is a weak acid containg 2 carbon atoms.the first carbon is joined to 3 hydrogen atoms by 3 covalent bonds and to the second carbo atom by one covalent bond.Therefore the first carbon of CH3COOH is sp3 hybridized.
Whereas the second carbon is joined to the first carbon by a covalent bond,the second carbon form a double bond with oxygen and thesecond carbon forms a covalent bond with the oxygen atom of -OH group of COOH moiety.Therefore the second carbon is sp2 hybridized.
Answer:
Trinitrobenzoic acid > para nitro benzoic acid>benzoic acid
Nulceophilic acyl Substitution increases by electron withdrawing group (NO2) more the no of withdrawing groups more the reactivity
Since withdrawing group increases positive charge hence nucleophilie readily reacts.
Acidity of Carboxylic acid is explained by inductive effect
Withdrawing group (halogen) increases the acidity and acidity decreases with increasing the distance between halogen and COOH group
And lower the acidity higher the pka and Vice-Versa.
Hence 2-Chlorobutanoic acid has lower pka and more acidic than 3-chloro and 4-chlorobutanoic acids