
TEST ALCANI
Quiz
•
Chemistry
•
1st - 12th Grade
•
Practice Problem
•
Hard
DANA-ELENA Lupuleasa
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24 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Pentru etan, unghiurile dintre legaturile covalente din molecula au valorile:
90o
109o28
120o
180o
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Se considera urmatorii alcani: n-butan (1), izobutan (2), neopentan (3), n-pentan (4), propan (5). Ordinea descrescatoare a punctelor de fierbere este:
4>3>1>2>5
5>2>1>3>4
4<3<1<5<2
4<3<1<2<5
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
In reacţia metanului cu un amestec de Cl2 şi Br2 rezulta un numar de compuşi halogenaţi micsti egal cu:
2
4
6
8
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Prin oxidarea metanului în prezenţa de oxizi de azot la 400-600oC rezulta:
gaz de sintezǎ
metanal
metanol
dioxid de carbon şi apǎ
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Prin descompunerea termica a n-pentanului rezulta în amestec hidrocarburi saturate în numar egal cu:
2
3
6
7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Are loc la temperaturi sub 650oC:
amonoxidarea metanului
conversia metanului cu vapori de apǎ
cracarea alcanilor
piroliza
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
La 10oC se afla în stare gazoasa:
2,2-dimetilpropanul
2-metilbutanul
n-pentanul
n-hexanul
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