
ALCHINE - BAC
Authored by Anca Timotin
Chemistry
10th Grade
Used 7+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alchina care are 7 atomi in molecula:
poate fi 1-heptina
este omologul superior al etinei
este lichida
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este adevarata afirmatia:
alchina C4H6 prezinta izomerie de catena
alchinele au formula generala CxH2x-4
etina si 1-butina sunt omologi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pentru reactia de obtinere a acetilenei din carbid, este falsa afirmatia:
reactia este exoterma
se formeaza si var stins
sunt necesari 2 moli de H2O pentru 1 mol de CaC2
reactia este endoterma
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sunt corect descrise reactiile:
etina + 2Cl2 (in prezenta de CCl4) = compus diclorurat nesaturat
acetilena + HOH(HgSO4, H2SO4) = CH3-CH=O
acetilena + 2HCl = 1,2-dicloroetena
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este izomer de pozitie cu 1-pentina:
2-pentina
3-metil-1-butina
1-butina
izprenul
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Despre polimerizarea acrilonitrilului, este falsa afirmatia:
se obtin mase plastice
polimerul are formula
-(C3H3N)n-
se obtin fibre sintetice
polimerul este un compus nesaturat
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Despre arderea acetilenei, este adevarata afirmatia:
reactia este endoterma
se formeaza CO si H2O
reactia este folosita la functionarea suflatorului oxiacetilenic
din 1 mol de acetilena se formeaza 1 mol de CO2 si 1 mol de H2O
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