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Recent questions tagged d and f- block elements. class-xii
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1
answer
You are given benzene, conc. H2SO4, NaOH and dil.HCl. Write the preparation of phenol using these reagents.
asked
Mar 23, 2019
in
Class 12
by
kratos
ethers
alcohols
d and f- block elements. class-xii
class-12
phenols
alcohols phenols and ethers
+2
votes
1
answer
Give the structures and IUPAC names of monohydric phenols of molecular formula, C7H8O?
asked
Mar 16, 2019
in
Class 12
by
kratos
ethers
alcohols
d and f- block elements. class-xii
class-12
phenols
alcohols phenols and ethers
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vote
1
answer
Predict the products formed when cyclohexanecarbaldehyde reacts with following reagents:
asked
Mar 13, 2019
in
Class 12
by
kratos
carboxylic acids
aldehydes
aldehydes ketones and carboxylic acids
ketones
d and f- block elements. class-xii
class-12
+3
votes
1
answer
Write chemical reaction for the preparation of phenol from chlorobenzene.
asked
Mar 11, 2019
in
Class 12
by
kratos
ethers
cbse
alcohols
d and f- block elements. class-xii
class-12
phenols
alcohols phenols and ethers
+2
votes
1
answer
Identify the statement that is incorrect about alkanes :
asked
Mar 2, 2019
in
Chemistry
by
kratos
organic chemistry
haloarenes
cbse
heloakanes and heloarenes
haloalkanes
class-10
icse
d and f- block elements. class-xii
class-12
+1
vote
1
answer
i. Ethanal, Propanal, Propanone, Butanone ii. Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone.
asked
Feb 28, 2019
in
Class 12
by
kratos
carboxylic acids
aldehydes
cbse
ketones
d and f- block elements. class-xii
class-12
+2
votes
1
answer
Arrange the compounds of each set in order of reactivity towards SN2 displacement:
asked
Feb 26, 2019
in
Class 12
by
kratos
haloarenes
cbse
heloakanes and heloarenes
haloalkanes
d and f- block elements. class-xii
class-12
+1
vote
1
answer
How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of this reaction
asked
Feb 26, 2019
in
Class 12
by
kratos
ethers
alcohols
d and f- block elements. class-xii
class-12
phenols
alcohols phenols and ethers
+2
votes
1
answer
Show how are the following alcohols prepared by the reaction of a suitable Grignard reagent on methanal?
asked
Feb 24, 2019
in
Class 12
by
kratos
class-12
hydroxy compounds and ethers
alcohols phenols and ethers
d and f- block elements. class-xii
+3
votes
1
answer
Which compound in each of the following pairs will react faster in SN2 reaction with OH-?
asked
Feb 19, 2019
in
Class 12
by
kratos
haloarenes
cbse
class-11
haloalkanes
d and f- block elements. class-xii
class-12
+3
votes
1
answer
Predict the order of reactivity of the following compounds in SN1 andSN2 reactions.
asked
Feb 11, 2019
in
Mathematics
by
kratos
d and f- block elements. class-xii
+3
votes
1
answer
Predict all the alkenes that would be formed by dehydrohalogenation of the following
asked
Feb 11, 2019
in
Class 12
by
kratos
haloarenes
heloakanes and heloarenes
class-11
haloalkanes
hydrocarbons
d and f- block elements. class-xii
class-12
+2
votes
1
answer
i. The 2,4-dinitrophenylhydrazone of benzaldehyde ii. Cyclopropanone oxime
asked
Feb 10, 2019
in
Class 12
by
kratos
carboxylic acids
aldehydes
ketones
aldehydes ketones and carboxylic acids
d and f- block elements. class-xii
class-12
+1
vote
1
answer
What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate?
asked
Feb 6, 2019
in
Class 12
by
kratos
cbse
coordination compounds
d and f- block elements. class-xii
coordinatian compounds
class-12
+2
votes
1
answer
Suppose you are given benzene, conc. H2SO4 and NaOH. Write the equations for the preparation of phenol using these reagents?
asked
Feb 6, 2019
in
Class 12
by
kratos
ethers
cbse
alcohols
d and f- block elements. class-xii
class-12
phenols
alcohols phenols and ethers
+1
vote
1
answer
i. Acetophenone and Benzophenone ii. Phenol and Benzoic acid
asked
Feb 5, 2019
in
Class 12
by
kratos
carbonyl compounds
carboxylic acids
class-12
d and f- block elements. class-xii
+2
votes
1
answer
Write chemical reaction for the preparation of phenol from chlorobenzene?
asked
Jan 22, 2019
in
Class 12
by
kratos
ethers
alcohols
d and f- block elements. class-xii
class-12
phenols
+2
votes
1
answer
Is the variability in oxidation number of transition elements different from that of non – transition elements? Illustrate with examples.
asked
Jan 20, 2019
in
Class 12
by
kratos
d-and f- block elements
cbse
the d- and f- block elements
transition elements
d and f- block elements. class-xii
class-12
+2
votes
1
answer
Give structures of the products you would expect when each of the following alcohol reacts with
asked
Jan 15, 2019
in
Mathematics
by
kratos
d and f- block elements. class-xii
+3
votes
1
answer
FeSO4 solution mixed with (NH4)2SO4 solution in 1:1 molar ratio gives the test of Fe2+ ion but CuSO4
asked
Jan 12, 2019
in
Class 12
by
kratos
coordination compounds
coordinatian compounds
class-12
d and f- block elements. class-xii
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