Alkenes (Grades 11-12)
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Alkenes
1.
What is the general formula of alkenes?
- [math]C_nH_(2n)[/math]
- [math]C_nH_(2n+2)[/math]
- [math]C_nH_(2n+1)[/math]
- [math]C_nH_(2n +1[/math]
2.
What would be the IUPAC name of the following compound?
[math]CH_3-CH = CH - CH_3[/math]
[math]CH_3-CH = CH - CH_3[/math]
- But-2-ene
- But-1-ene
- Pent-1-ene
- Pent-2-ene
3.
What is the temperature range in which an alcohol must be heated with concentrated sulfuric acid to form the corresponding alkene?
- 443 K to 453 K
- 425 K to 439 K
- 415 K to 430 K
- 420 K to 470 K
4.
What is the product of the following chemical reaction?
[math]CH_2=CH_2 + HBr rarr[/math]
[math]CH_2=CH_2 + HBr rarr[/math]
- [math]CH_3-CH_2-Br[/math]
- [math]CH_3-CH=CH-Br[/math]
- [math]CH_2=CH-Br[/math]
- [math]CH_3-CH=CH-CH_2-Br[/math]
5.
What temperature and pressure conditions are required to carry out the polymerization of ethylene?
- Temperature (463 K to 483 K) and Pressure (1500 atm.)
- Temperature (450 K to 480 K) and Pressure (1200 atm.)
- Temperature (400 K to 430 K) and Pressure (1300 atm.)
- Temperature (420 K to 440 K) and Pressure (1600 atm.)
6.
To predict the major product in the addition reaction of a hydrogen halide with an unsymmetrical alkene, which of the following conditions is used?
- Markownikoff's rule
- Kharasch effect
- Baeyer's test
- Peroxide effect
7.
Which of the following isomers is associated with difference in carbon chain length?
- Structural isomerism
- Cis isomerism
- Trans isomerism
- Geometrical isomerism
8.
Which of the following can be added to help oxidize an alkene to glycols?
- [math] KMnO_4 [/math]
- [math] H_2 SO_4 [/math]
- HCl
- Raney Ni
9.
Alkynes on catalytic hydrogenation first give , which on further reaction give .
10.
Name ONE of the metal catalysts that can be used in the catalytic hydrogenation of an alkene.
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