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Chimie > Hidroxiacizi > Flashcards

Hidroxiacizi Flashcards

1
Q

cum arata acidul gliceric?

A

OH-CH2-CH(OH)-COOH

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2
Q

cum arata acidul tartric?

A

HOOC-CH(OH)-CH(OH)-COOH

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3
Q

cum arata acidul malic?

A

HOOC-CH2-CH(OH)-COOH

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4
Q

cum arata acidul citric?

A

HOOC-CH2-C(OH)(COOH)-CH2-COOH

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5
Q

scrie reactia Kölbe-Schmitt

A

fenol + NaOH (-H2O)–> fenoxid de Na (+CO2 la presiune si temperatura) –> C6H5-COONa, orto-(OH) (+HCl, -NaCl) –> acid salicilic

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6
Q

formula acid glicolic si sinonim

A

HO-CH2-COOH (hidroxiacetic)

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7
Q

surse naturale de hidroxiacizi

A

lactic - lapte
tartric - struguri zdrobiti
citric - lamai
salicilic - flori de musetel

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8
Q

proprietati fizice acid salicilic

A

substanta solida, cristalina, foarte solubila in apa

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9
Q

fata de ce azici este mai puternic acidul salicilic?

A

acid benzoic si izomerul lui meta

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10
Q

roluri acid salicilic si salicilat de sodiu

A

conservanti alimentari

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11
Q

reactie de identificare acid salicilic

A

FeCl3 => rosu-violet

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Chimie (17 decks)

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