Care este volumul gazului de sinteza (c.n.) de puritate 80% (procente de volum) introdus intr-un proces tehnologic de obtinere a 320 Kg de metanol, de puritate 80%, cu un randament al procesului tehnologic de 80%?
TEST ALCOOLI

Quiz
•
Chemistry
•
11th - 12th Grade
•
Hard
DANA-ELENA Lupuleasa
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15 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
15 mins • 1 pt
672 m3
470,4 m3
588 m3
840 m3
2.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Care dintre urmatoarele reactii dovedeste ca apa este un acid mai tare decat alcoolii?
CH3-CH2-OH+Na = CH3-CH2-ONa + 1/2H2
C6H5ONa+H2O+CO2= C6H5OH+NaHCO3
C6H5OH+NaOH=C6H5ONa+H2O
CH3-CH2-ONa +H2O= CH3-CH2-OH+NaOH
3.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Un alcool monohidroxilic saturat, care contine 68,18% carbon, prezinta mai multi izomeri de constitutie. Cati dintre alcoolii izomeri sunt rezistenti la actiunea solutiei de bicromat de potasiu si acid sulfuric?
5
4
2
1
4.
MULTIPLE SELECT QUESTION
15 mins • 1 pt
O cantitate de 39 g de amestec echimolecular de metanol si etanol se supune oxidarii energice cu permanganat de potasiu si acid sulfuric. Care este volumul solutiei de permanganat de potasiu 1M care se consuma in reactie?
400 mL
600 mL
1000 mL
2000 mL
5.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
Se ard 11,5 g de alcool monohidroxilic saturat si rezulta 11,2 L de CO2 (c.n.). Identificati alcoolul si calculati cantitatea de sodiu necesara reactiei cu 69 g de alcool.
CH3OH , 34,5 g
CH3CH2OH, 34,5 g
CH3CH2OH, 23 g
Izopropanol, 34,5 g
6.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Precizati denumirea cicloalchenei care se transforma, prin oxidare cu permanganat de potasiu si apa, in 1-metil-ciclohexan-1,2-diol.
1-metilciclohexena
1-etilciclohexena
3-metilciclohexena
4-metilciclohexena
7.
MULTIPLE SELECT QUESTION
15 mins • 1 pt
Un amestec de metanol si etanol cu masa de 248 g, formeaza prin ardere 224 L de CO2 (c.n.). Se cere volumul de aer (20% oxigen), masurat in c.n., necesar arderii a amestecului de alcooli.
3800 l
1904 L
952 L
1680 L
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