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General Organic Chemistry - 09 (Reaction intermediates)
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Q1. The homolytic fission of a covalent bond liberates
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1 point
Ions
Elements
Free Radicals
Groups
Q2. Homolytic fission of C–C bond in ethane gives an intermediate in which carbon is
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1 point
sp3 hybridized
sp hybridized
sp2 hybridized
sp3d hybridized
Q3. In which of the following homolytic bond fission takes place ?
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1 point
Alkaline hydrolysis of ethyl chloride
Photochlorination of methane
Addition of HBr to double bond
Nitration of benzene
Q4. On exciting, Cl2 molecules by UV light, we get
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1 point
Cl-
Cl free radical
All
Cl+
Q5. Which of the following orders regarding relative stability of free radicals is correct?
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1 point
d
c
b
a
Q6. The increasing order of stability of the following free radicals is
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1 point
c
d
b
a
Q7. The most stable free radical among the following is
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1 point
c
a
d
b
Q8. For the reaction of phenol with CHCl3 in presence of KOH, the electrophile is
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1 point
*CH3
CCl4
+CH2Cl2
Carbene
Q9. The least stable free radical is
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1 point
b
c
a
d
Q10. Which of the following represents a set of nucleophiles?
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1 point
b
c
a
d
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