Chemistry-
General
Easy
Question
Which is U.P. spirit (containing ethyl alcohol by volume)?
- 85%
- 75%
- 65%
- 55%
The correct answer is: 55%
Related Questions to study
Chemistry-
When vapours of an alcohol are passed over hot reduced copper, alcohol is converted into alkene, the alcohol is:
When vapours of an alcohol are passed over hot reduced copper, alcohol is converted into alkene, the alcohol is:
Chemistry-General
Chemistry-
Primary amine on treatment with 
and HCI yields:
Primary amine on treatment with and HCI yields:
Chemistry-General
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Alcoholic fermentation is brought by:
Alcoholic fermentation is brought by:
Chemistry-General
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HBr reacts fastest with:
HBr reacts fastest with:
Chemistry-General
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Which one of the following alcohols reacts most readily with Lucas reagent?
Which one of the following alcohols reacts most readily with Lucas reagent?
Chemistry-General
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In this reaction,
the molecule (A) and the reagent (B) are :
In this reaction,
the molecule (A) and the reagent (B) are :
Chemistry-General
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Propene on reaction with carbon monoxide and hydrogen at high temperature under pressure in presence of cobalt carbonyl catalyst gives:
Propene on reaction with carbon monoxide and hydrogen at high temperature under pressure in presence of cobalt carbonyl catalyst gives:
Chemistry-General
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What is the product (A) in the following reaction?
What is the product (A) in the following reaction?
Chemistry-General
Chemistry-
A compound soluble in conc. 
' It does not decolourise bromine in 
but oxidised by chromic anhydride in aqueous within two seconds, turning orange solution to blue, green, and then opaque. The original compound is:
A compound soluble in conc. ' It does not decolourise bromine in but oxidised by chromic anhydride in aqueous within two seconds, turning orange solution to blue, green, and then opaque. The original compound is:
Chemistry-General
Chemistry-
Free radical halogenation takes place in the presence of light or at high temperature (above 773K). Formation of halogen free radical intermediate takes place in first step called chain initiation step.
This reaction is mainly given by those compounds which have atleast one hydrogen atom present at 
-hybrid carbon. Reactivity of -hybrid carbon depends on the reactivity of reaction intermediate. The relative rate of formation of alkyl radicals by a chlorine radical is :
Percentage yield of the product =
Relative amount = Number of hydrogen atoms on the respective carbon x relative reactivity.
NBS (N-bromo succinimide) is used for bromination at allylic and benzylic carbon, whereas Br2/hv gives bromination at . benzylic, allylic and alkyl carbon.
Arrange decreasing order of reactivity of given compounds with NBS: (N-bromo succinimide)
I) 
II) 
III) 
IV) 
Select the correct answer from the codes given below:
Free radical halogenation takes place in the presence of light or at high temperature (above 773K). Formation of halogen free radical intermediate takes place in first step called chain initiation step.
This reaction is mainly given by those compounds which have atleast one hydrogen atom present at -hybrid carbon. Reactivity of -hybrid carbon depends on the reactivity of reaction intermediate. The relative rate of formation of alkyl radicals by a chlorine radical is :
Percentage yield of the product =
Relative amount = Number of hydrogen atoms on the respective carbon x relative reactivity.
NBS (N-bromo succinimide) is used for bromination at allylic and benzylic carbon, whereas Br2/hv gives bromination at . benzylic, allylic and alkyl carbon.
Arrange decreasing order of reactivity of given compounds with NBS: (N-bromo succinimide)
I)
II)
III)
IV)
Select the correct answer from the codes given below:
Chemistry-General
Chemistry-
Free radical halogenation takes place in the presence of light or at high temperature (above 773K). Formation of halogen free radical intermediate takes place in first step called chain initiation step.
This reaction is mainly given by those compounds which have atleast one hydrogen atom present at -hybrid carbon. Reactivity of -hybrid carbon depends on the reactivity of reaction intermediate. The relative rate of formation of alkyl radicals by a chlorine radical is :
Percentage yield of the product =
Relative amount = Number of hydrogen atoms on the respective carbon x relative reactivity.
NBS (N-bromo succinimide) is used for bromination at allylic and benzylic carbon, whereas Br2/hv gives bromination at . benzylic, allylic and alkyl carbon.
Chlorination of butane takes place as:
Percentage yield of 2-chlorobutane will be:
Free radical halogenation takes place in the presence of light or at high temperature (above 773K). Formation of halogen free radical intermediate takes place in first step called chain initiation step.
This reaction is mainly given by those compounds which have atleast one hydrogen atom present at -hybrid carbon. Reactivity of -hybrid carbon depends on the reactivity of reaction intermediate. The relative rate of formation of alkyl radicals by a chlorine radical is :
Percentage yield of the product =
Relative amount = Number of hydrogen atoms on the respective carbon x relative reactivity.
NBS (N-bromo succinimide) is used for bromination at allylic and benzylic carbon, whereas Br2/hv gives bromination at . benzylic, allylic and alkyl carbon.
Chlorination of butane takes place as:
Percentage yield of 2-chlorobutane will be:
Chemistry-General
Chemistry-
SN1 reaction is a first order nucleophilic substitution, e.g.,
The concentration of nucleophile does not appear in the rate law expression:
Reaction rate = k[ RX]
In a multistep organic reaction, the rate-limiting step is the slowest step. Rate determining step is represented by the following energy level diagram:
A reaction energy level diagram for an 
reaction. The rate limiting step is spontaneous dissociation of an alkyl halide to give a carbocation intermediate
reaction is:
SN1 reaction is a first order nucleophilic substitution, e.g.,
The concentration of nucleophile does not appear in the rate law expression:
Reaction rate = k[ RX]
In a multistep organic reaction, the rate-limiting step is the slowest step. Rate determining step is represented by the following energy level diagram:
A reaction energy level diagram for an reaction. The rate limiting step is spontaneous dissociation of an alkyl halide to give a carbocation intermediate
reaction is:
Chemistry-General
Chemistry-
SN1 reaction is a first order nucleophilic substitution, e.g.,
The concentration of nucleophile does not appear in the rate law expression:
Reaction rate = k[ RX]
In a multistep organic reaction, the rate-limiting step is the slowest step. Rate determining step is represented by the following energy level diagram:
A reaction energy level diagram for an reaction. The rate limiting step is spontaneous dissociation of an alkyl halide to give a carbocation intermediate
In the graph 3 for reaction, the rate limiting step is the spontaneous dissociation of alkyl halide and is given by:
SN1 reaction is a first order nucleophilic substitution, e.g.,
The concentration of nucleophile does not appear in the rate law expression:
Reaction rate = k[ RX]
In a multistep organic reaction, the rate-limiting step is the slowest step. Rate determining step is represented by the following energy level diagram:
A reaction energy level diagram for an reaction. The rate limiting step is spontaneous dissociation of an alkyl halide to give a carbocation intermediate
In the graph 3 for reaction, the rate limiting step is the spontaneous dissociation of alkyl halide and is given by:
Chemistry-General
Chemistry-
SN1 reaction is a first order nucleophilic substitution, e.g.,
The concentration of nucleophile does not appear in the rate law expression:
Reaction rate = k[ RX]
In a multistep organic reaction, the rate-limiting step is the slowest step. Rate determining step is represented by the following energy level diagram:
A reaction energy level diagram for an reaction. The rate limiting step is spontaneous dissociation of an alkyl halide to give a carbocation intermediate
Select the correct statement(s) about the graph 2:
SN1 reaction is a first order nucleophilic substitution, e.g.,
The concentration of nucleophile does not appear in the rate law expression:
Reaction rate = k[ RX]
In a multistep organic reaction, the rate-limiting step is the slowest step. Rate determining step is represented by the following energy level diagram:
A reaction energy level diagram for an reaction. The rate limiting step is spontaneous dissociation of an alkyl halide to give a carbocation intermediate
Select the correct statement(s) about the graph 2:
Chemistry-General
Chemistry-
SN1 reaction is a first order nucleophilic substitution, e.g.,
The concentration of nucleophile does not appear in the rate law expression:
Reaction rate = k[ RX]
In a multistep organic reaction, the rate-limiting step is the slowest step. Rate determining step is represented by the following energy level diagram:
A reaction energy level diagram for an reaction. The rate limiting step is spontaneous dissociation of an alkyl halide to give a carbocation intermediate
In reaction, the hybridization changes in rate determination step. Select the correct change among the following:
SN1 reaction is a first order nucleophilic substitution, e.g.,
The concentration of nucleophile does not appear in the rate law expression:
Reaction rate = k[ RX]
In a multistep organic reaction, the rate-limiting step is the slowest step. Rate determining step is represented by the following energy level diagram:
A reaction energy level diagram for an reaction. The rate limiting step is spontaneous dissociation of an alkyl halide to give a carbocation intermediate
In reaction, the hybridization changes in rate determination step. Select the correct change among the following:
Chemistry-General
