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Karnataka Board PUCPUC Science 2nd PUC Class 12

PUC Science 2nd PUC Class 12 - Karnataka Board PUC Question Bank Solutions for Chemistry

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Chemistry
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How the following conversion can be carried out?

Propene to propan-1-ol

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

How the following conversion can be carried out?

Benzyl alcohol to 2-phenylethanoic acid

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

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How the following conversion can be carried out?

2-Methyl-1-propene to 2-chloro-2-methylpropane

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

How the following conversion can be carried out?

But-1-ene to n-butyliodide

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

Illustrate how copper metal can give different products on reaction with HNO3.

[7] P - Block Elements
Chapter: [7] P - Block Elements
Concept: undefined >> undefined

How will you convert: Phenol to 2, 4, 6 − trinitrophenol?

[7] Alcohols, Phenols and Ethers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields three isomeric monochlorides.

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

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields four isomeric monochlorides.

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

How many atoms constitute one unit cell of a face-centered cubic crystal?

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

Gas (A) is more soluble in water than Gas (B) at the same temperature. Which one of the two gases will have the higher value of KH (Henry’s constant) and why

[1] Solutions
Chapter: [1] Solutions
Concept: undefined >> undefined

When a coordination compound CoCl3.6NH3 is mixed with AgNO3, 3 moles of AgCl are precipitated per mole of the compound. Write the structural formula of the coordination compound.

[5] Coordination Compounds
Chapter: [5] Coordination Compounds
Concept: undefined >> undefined

Draw one of the geometrical isomers of the complex [Pt (en)2Cl2] +2 which is optically inactive

[5] Coordination Compounds
Chapter: [5] Coordination Compounds
Concept: undefined >> undefined

An element crystallises in a b.c.c lattice with cell edge of 500 pm. The density of the element is 7.5g cm-3. How many atoms are present in 300 g of the element?

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

Give reasons for the following: (CH3)2NH is more basic than (CH3)3N in an aqueous solution.

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

Give reason for the following:

Primary amines have higher boiling point than tertiary amines.

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

Arrange the following in the increasing order of their reactivity towards nucleophilic addition reaction:

C6H5COCH3, CH3-CHO, CH3COCH3

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

Out of white phosphorus and red phosphorus, which one is more reactive and why?

[7] P - Block Elements
Chapter: [7] P - Block Elements
Concept: undefined >> undefined

Why do gases always tend to be less soluble in liquids as the temperature is raised?

[1] Solutions
Chapter: [1] Solutions
Concept: undefined >> undefined

Draw the geometrical isomers of complex \[\ce{[Co(en)2Cl2]+}\].

[5] Coordination Compounds
Chapter: [5] Coordination Compounds
Concept: undefined >> undefined

Predict the products of the following reactions:

 

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