I. Organik kimyo tarixi. Organik birikmalarning o’ziga xos xususiyatlari

XXX. Uglevodlar. Monosaxaridlar va ularning xossalari
1.Uglevodlarga mansub bo’lgan moddani ko’rsating.
A) kraxmal, glyukoza, selluloza B) spirt, metan, propan C) kraxmal, yog’lar, sovun
D) saxaroza, kraxmal, murakkab efir
2. Uglevod nechta sinfga ajratiladi?
A) 2 B)3 C) 4 D) 5
3. Monosaxaridlarga mansub birikmalarni ko’rsating.
A) kraxmal, selluloza B) glyukoza, fruktoza C) kraxmal, glyukoza D) maltoza, saxaroza
4. Eng oddiy uglevodni kalsiy gidroksid ishtirokida formalinda sintez qilgan olim kim?
A) Vyurs B) Zelinskiy C) Butlerov D) Markovnikov
5. Glyukozaning spirtli bijg’ish reaksiyasini ko’rsating.
A) C₆H₁₂O₆ +6O₂ = 6CO₂ + 6H₂O + Q B) C₆H₁₂O₆ = 2C₂H₅OH + 2CO₂
C) 6CO₂ + 6H₂O = C₆H₁₂O₆ + 6O₂ D) C₁₂H₂₂O₁₁ + H₂O = C₆H₁₂O₆ + C₆H₁₂O₆
XXXI. Disaxaridlar. Polisaxaridlar va xossalari
1.Saxarozaning formulasini ko’rsating.
A) C₁₂H₂₂O₁₁ B) C₆H₁₂O₆ C) C₅H₁₁O₅ D) C₆H₁₀O₆
2. Maltoza gidrolizlanganda qanday modda hosil bo’ladi?
A) 2 molekula saxaroza B) 2 molekula etil spirti C) 2 molekula glyukoza
D) 2 molekula etilatsetat
3. Kraxmal uglevodlarning qaysi sinfiga mansub?
A) monosaxarid B) disaxarid C) polisaxarid
4. Laboratoriyada glyukoza hamda saxaroza eritmalarini bir-biridan farqlash uchun qanday reagentdan foydalansa bo’ladi?
A) Cu(OH)₂ B) H₂O, H₂SO₄ C) Ag₂O D) CuOH
5. Tarkibida selluloza bo’lgan moddalarni ko’rsating.
A) paxta tolasi, yog’och, o’simlik poyasi B) olma mevasi, shakarqamish, qand lavlagi
C) uzum, lavlagi, o’rik D) sut, qatiq, pishloq