Alcani
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
NICULAE ANCA
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alcanul cu 3 atomi de carbon se numește:
propan
butan
pentan
trian
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Omologul superior al butanului este:
propanul
metanul
etanul
pentanul
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reprezintă formula unui alcan:
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Etanul are formula moleculară:
C2H4
C3H6
CH2
C2H6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este o proprietate fizică a alcanilor:
Sunt solubili în apă
Sunt buni combustibili, la ardere degajă o cantitate mare de căldură
Primii 4 alcani din seria omoloagă sunt gazoși la temperatură obișnuită
Alcanii lichizi au o densitate mai mare decât a apei
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Alcanul din imagine se numește:
2,2-dimetil-butan
2-metil-pentan
2-etil-2-metil-propan
3,3-dimetil-butan
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Izomerii sunt:
Alcani izoelectronici
Compuși organici cu aceeași formulă structurală dar cu formule moleculare diferite
Alcani ramificați
Compuși organici cu aceeași formulă moleculară dar cu formule structurale și proprietăți diferite
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alcanii dau reacții de:
Adiție a clorului
Eliminare a radicalilor
Izomerizare
Polimerizare
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La arderea completă a alcanilor se obține:
CO + H2 + Q
CO2 + H2O + Q
C + H2 + Q
C + H2O +Q
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