Polymer

Q.

What are dyes?

Q.

Give examples which indicate that nylon fibres are very strong.

Q. Match List - I with List - II

List - I (Polymer)	List - II (Nature)
A.	I. Thermosetting polymer
B.	II. Fibers
C.	III. Elastomer
D.	IV. Thermoplastic polymer

Choose the correct answer from the options given below:

Q.

Define the term polymerization.

Q. A compound on reductive ozonolysis produces two moles of formaldehyde and one mole of glyoxal. The compound is

1. 2 – Butene
2. 1, 3 – butadiene
3. 1, 3 – pentadiene
4. 1, 4 – pentadiene

Q.

Which of the following is not a polymer?

1. Sucrose

2. Enzyme

3. Teflon

4. Starch

Q.

What is the biological polymer in the paper?

Q. Identify the type of polymer.
(i) - A - A - A - A - A - A-
(ii) - A - B - B - A - A - A - B - A -

1. (i) Homopolymer, (ii) Copolymer
2. (i) Natural polymer, (ii) Synthetic polymer
3. (i) Linear polymer, (ii) Branched polymer
4. (i) Fibre, (ii) Elastomer

Q.

Cellulose acetate is a:

1. Semi-synthetic polymer

2. Synthetic polymer

3. Plasticiser

4. Natural polymer

Q.

The component of cement that has the property of setting instantaneously in presence of water and imparting initial internal strength to cement is-

1. tricalcium aluminate

2. tricalcium silicate

3. dicalcium silicate

4. All of these.

Q. Peptides on hydrolysis gives what?? (A) Ammonia (B) Amines (C) Amino Acids (D) Hydroxy Acids What??

Q. the volume strength of 10% (w/v) h2o2 solution i

Q.

Wool-yielding animals bear _________ on their body.

Q. What is polymerization? Give an example of a polymerization reaction.

Q.

Wash and wear clothes are manufactured using

1. Cotton mixed with nylon
2. Terylene fibres
3. Nylon fibres
4. Wool fibres

Q. A polypeptide on complete hydrolysis gives three amino acids.How many sequences are possible for that polypeptide?(1) 1(2) 3(3) 6(4)

Q. Compare acidic nature A)Ortho amino phenol and meta amino phenol.does h bonding play a role here.

Q.

Alkane is obtained from the reaction of which of the following compounds with Grignard reagent?

1. ${\mathrm{NH}}_3$

2. ${\mathrm{H}}_2\mathrm{O}$

3. ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$

4. All of these

Q. Tensile strength is maximum in

1. Nylon
2. Bakelite
3. None of these
4. All of the above

Q. 44. When a gaseous olefinic hydrocarbon is burnt completely in excess of O2, a contraction in volume equal to double the volume of hydrocarbon is noticed then hydrocarbon will be?

Q.

Glycogen is a polymer of / Repeating unit of glycogen is-

1. Galactose

2. Glucose

3. Fructose

4. Sucrose

Q. Polymers are macro molecules formed by union of monomers.
(a) Name natural polymer and synthetic polymer.
(b) Distinguish between thermoplastic and thermosetting polymers with examples.

Q. Explain addition polymerization with an example.

Q.

The kind of water-based paint commonly used for painting indoor surfaces?

Q. Which of the following is an example of additional polymerization?

1. Proteins
2. Teflon
3. Nylon-$6,6$
4. Glyptal

Q.

What are synthetic polymers?

Q. Study the given flowchart carefully. $K,L,PandQ$ plastics are
$KLPQ$
(A)Polystyrene, Bakelite, Teflon, PVC
(B)Polythene, Polystyrene, Bakelite, PVC
(C)PVC, Polythene, Polystyrene, Bakelite
(D)PVC, Teflon, Melamine, Bakelite

Q. Which one of the following monomers gives the polymer neoprene on polymerization?

1. $C{Cl}_2=C{Cl}_2$
2. $C{H}_2=CHCl$
3. $C{F}_2=C{F}_2$
4. $C{H}_2=CClCH=C{H}_2$

Q. How are Buna-S and nylon-$6,6$ prepared? Give their uses.

Q. The structure of Neoprene is:

1. 
2. 
3. 
4.