What is the hybridization of the oxygen atom in alcohols?
A) sp B) sp2 C) sp3
sp3
The C—O—H bond angle in alcohols is closest to
A) 90. B) 109.5. C) 120 D) 180
109.5
Chlorination of pentane gives a mixture of isomers having the molecular formula C5H11Cl. The percentage of 1-chloropentane is 22%. Assuming the secondary hydrogens in pentane are equally reactive to monochlorination, what is the percentage of 3-chloropentane in the mixture?
A) 48% B) 26% C) 22% D) 14%
26%
Which of the following hydrocarbons has the slowest reaction rate with Br2 and light?
A) CH4 B) CH3CH2CH3 C) CH3CH2CH2CH3 D) (CH3)3CH
CH4
What are the products of the following reaction?
CH3CH2CH2CH2OH + HBr =
A)1-bromobutane and water
B)1-bromobutane and hydrogen
C)butane and HOBr
D)CH3CH2CH2CH2OBr + hydrogen
1-bromobutane and water
Which of the following is most reactive with HBr?
A) CH3OH B) CH3CH2OH C) (CH3)2CHOH D) (CH3)3COH
CH3)3COH
What is the product of the following reaction?
BrCH2CH2CH2CH2OH + SOCl2 =
A) ClCH2CH2CH2CH2OH
B) BrCH2CH2CH2CH2SH
C) BrCH2CH2CH2CH2Cl
D) ClCH2CH2CH2CH2SOCl
BrCH2CH2CH2CH2Cl
Which constitutional isomer of C6H14 gives only two monochlorination products?
A) 2-methylpentane
B) 3-methylpentane
C)2,2-dimethylbutane
D) 2,3-dimethylbutane
2,3-dimethylbutane
The central carbon of the tert-butyl carbocation, (CH3)3C+, is
A) sp2 hybridized with a +1 formal charge.
B) sp2 hybridized with a 0 formal charge.
C) sp3 hybridized with a +1 formal charge.
D) sp3 hybridized with a 0 formal charge.
sp2 hybridized with a +1 formal charge.
Studies indicate that the methyl radical is trigonal planar. Based on this, which of the following best describes the methyl radical?
A) The carbon is sp2 hybridized and the unpaired electron occupies an sp2 orbital.
B) The carbon is sp2 hybridized and the unpaired electron occupies a 2p orbital.
C) The carbon is sp3 hybridized and the unpaired electron occupies an sp3 orbital.
D) The carbon is sp3 hybridized and the unpaired electron occupies a 2p orbital.
The carbon is sp2 hybridized and the unpaired electron occupies a 2p orbital
How many c3h6cl2 constitutional isomers do you expect in the dichlorination of propane?
A) two B) three C) four D) five
Four
The reaction shown below is what type?
Cl(.) + CH4 == HCl + H3C(.)
A) addition B) termination C) propagation D) initiation
propagation
