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HSC Science (Computer Science) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Chemistry

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Chemistry
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Answer the following in one sentence.

Name some chain-growth polymers.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following.

Write a reaction to prepare ethanamine from Nitroethane

[13] Amines
Chapter: [13] Amines
Concept: undefined >> undefined

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Answer the following in one sentence.

Define the term: Synthetic fibres

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following.

Write a reaction to prepare ethanamine from Propionamide.

[13] Amines
Chapter: [13] Amines
Concept: undefined >> undefined

Answer the following in one sentence.

Give one example each of copolymer and homopolymer.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following.

Write the names of classes of polymers formed according to intermolecular forces and describe briefly their structural characteristics.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following.

Classify the following polymers as natural and synthetic polymers

  1. Cellulose
  2. Polystyrene
  3. Terylene
  4. Starch
  5. Protein
  6. Silicones
  7. Orlon (Polyacrylonitrle)
  8. Phenol-formedehyde resins
[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following.

What are synthetic resins? Name some natural and synthetic resins.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following.

Distinguish between thermosetting and thermoplastic resins. Write example of both the classes.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following

How is polythene manufactured? Give their properties and uses.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Attempt the following:

Classify the following polymer as straight-chain, branched-chain and cross-linked polymers.

\[\begin{array}{cc}\ce{- (CH2 - CH -)_\text{n}}\\
\phantom{.....}|\\\ce{\phantom{.......}CN}\end{array}\]

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Attempt the following:

Classify the following polymer as straight-chain, branched-chain and cross-linked polymers.

\[\begin{array}{cc}
\ce{-(CH2 - CH2 - CH - CH2 - CH2)_\text{n}}\\
|\phantom{..}\\\ce{\phantom{..}CH2}\\
|\phantom{..}\\\ce{\phantom{..}CH2}\end{array}\]

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Attempt the following:

Classify the following polymer as straight-chain, branched-chain and cross-linked polymers.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following.

Explain in detail free radical mechanism involved during preparation of addition polymer.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following in one or two sentences.

For the reaction,

\[\ce{CH3Br_{(aq)} + OH^-_{ (aq)} -> CH3OH^-_{ (aq)} + Br^-_{ (aq)}}\], rate law is rate = k`["CH"_3"Br"]["OH"^-]`

What is the change in rate if concentrations of both reactants are doubled?

[6] Chemical Kinetics
Chapter: [6] Chemical Kinetics
Concept: undefined >> undefined

What are the types of ligands? Give one example of each type.

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

Amongst the following, the ambidentate ligand is ____________

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

Write one example of each of bidentate and ambidentate ligand.

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

The following types of solids contain molecules as constituent particles?

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

Which of the following is an amorphous solid?

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