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Science (English Medium) कक्षा १२ - CBSE Question Bank Solutions for Chemistry

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Chemistry
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Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzoyl (primary, secondary, tertiary), vinyl or aryl halide:

CH3CH = CHC(Br)(CH3)2

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzoyl (primary, secondary, tertiary), vinyl or aryl halide:

p-ClC6H4CH2CH(CH3)2

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

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Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzoyl (primary, secondary, tertiary), vinyl or aryl halide:

m-ClCH2C6H4CH2C(CH3)3

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzoyl (primary, secondary, tertiary), vinyl or aryl halide:

o-Br-C6H4CH(CH3)CH2CH3

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

Write any two differences between amorphous solids and crystalline solids

[1] Solid State
Chapter: [1] Solid State
Concept: undefined >> undefined

How many electrons flow through a metllic wire if a current of 0·5 A is passed for 2 hours? (Given : 1 F = 96,500 C mol−1)

[2] Electrochemistry
Chapter: [2] Electrochemistry
Concept: undefined >> undefined

Give simple chemical tests to distinguish between the following pairs of compounds:

Butanal and Butan-2-one

[8] Aldehydes, Ketones and Carboxylic Acids
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Draw the structure of major monohalo product in each of the following reactions :

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

Give the structures of A, B and C in the following reactions :

[9] Amines
Chapter: [9] Amines
Concept: undefined >> undefined

Give the structures of A, B and C in the following reactions :

[9] Amines
Chapter: [9] Amines
Concept: undefined >> undefined

Define the following term:

Fuel cell

[2] Electrochemistry
Chapter: [2] Electrochemistry
Concept: undefined >> undefined

Write structures of compounds A and B in each of the following reactions: 

[9] Amines
Chapter: [9] Amines
Concept: undefined >> undefined

cell for the given redox reaction is 2.71 V
Mg(s) + Cu2+ (0.01 M) → Mg2+ (0.001 M) + Cu(s)

Calculate Ecell for the reaction. Write the direction of flow of current when an external opposite potential applied is
(i) less than 2.71 V and
(ii) greater than 2.71 V

[2] Electrochemistry
Chapter: [2] Electrochemistry
Concept: undefined >> undefined

Which among the following is not an example of amorphous solids?

[1] Solid State
Chapter: [1] Solid State
Concept: undefined >> undefined

Amorphous solids are also known as ____________.

[1] Solid State
Chapter: [1] Solid State
Concept: undefined >> undefined

4d transition elements series are from ____________.

[4] d-block and f-block Elements
Chapter: [4] d-block and f-block Elements
Concept: undefined >> undefined

IUPAC name of CH3CHO is ____________.

[8] Aldehydes, Ketones and Carboxylic Acids
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Give IUPAC names of the following compound:

CH3CH2CH2CH(Br)CH(CH3)CH2CHO

[8] Aldehydes, Ketones and Carboxylic Acids
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Give the IUPAC name of the following compound:

\[\begin{array}{cc}
\phantom{.................}\ce{Br}\phantom{....}\ce{CH3}\phantom{.........}\ce{O}\phantom{...}\\
\phantom{................}|\phantom{......}|\phantom{............}||\phantom{..}\\
\ce{CH3 - CH2 - CH2CH - CH - CH2 - C - H}
\end{array}\]

[8] Aldehydes, Ketones and Carboxylic Acids
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Give IUPAC names of the following compound:

[8] Aldehydes, Ketones and Carboxylic Acids
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined
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