Polymers & Everyday Chemistry · JEE Main previous year questions

Monomer units of Dacron polymer are :

1. A.ethylene glycol and phthalic acid
2. B.ethylene glycol and terephthalic acid
3. C.glycerol and terephthalic acid
4. D.glycerol and phthalic acid

1. A.Antacid
2. B.Analgesic
3. C.Tranquilizer
4. D.Antibiotic

1. A.Both statement I and statement II are false
2. B.Statement I is incorrect but statement II is true
3. C.Both statement I and statement II are true
4. D.Statement I is correct but statement II is false

Match List-I with List-II : $$\begin{array}{llll}& \text{List - I}& & \text{List - II}\\ \text{(a)}& \text{Chloroprene}& \text{(i)}& \mathrm{C}{\mathrm{H}}_2=\mathrm{C}(\mathrm{C}{\mathrm{H}}_3)-\mathrm{CH}=\mathrm{C}{\mathrm{H}}_2\\ \text{(b)}& \text{Neoprene}& \text{(ii)}& \mathrm{C}{\mathrm{H}}_2=\mathrm{C}(\mathrm{Cl})-\mathrm{CH}=\mathrm{C}{\mathrm{H}}_2\\ \text{(c)}& \text{Acrylonitrile}& \text{(iii)}& -{\left[\mathrm{C}{\mathrm{H}}_2-\mathrm{C}(\mathrm{Cl})=\mathrm{CH}-\mathrm{C}{\mathrm{H}}_2\right]}_{\mathrm{n}}-\\ \text{(d)}& \text{Isoprene}& \text{(iv)}& \mathrm{C}{\mathrm{H}}_2=\mathrm{CH}-\mathrm{CN}\end{array}$$ Choose the correct answer from the options given below :

1. A.(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
2. B.(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
3. C.(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
4. D.(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

Match the list - I with list - II $$\begin{array}{llll}& \text{List - I}& & \text{List - II}\\ & \text{(Class of Drug)}& & \text{(Example)}\\ \text{(a)}& \text{Antacid}& \text{(i)}& \text{Novestrol}\\ \text{(b)}& \text{Artificial sweetener}& \text{(ii)}& \text{Cimetidine}\\ \text{(c)}& \text{Antifertility}& \text{(iii)}& \text{Valium}\\ \text{(d)}& \text{Tranquilizers}& \text{(iv)}& \text{Alitame}\end{array}$$

1. A.(a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)
2. B.(a) - (iv), (b) - (i), (c) - (ii), (d) - (iii)
3. C.(a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)
4. D.(a) - (ii), (b) - (iv), (c) - (iii), (d) - (i)

Given below are two statements : Statement I : Non-biodegradable wastes are generated by the thermal power plants. Statement II : Bio-degradable detergents leads to eutrophication. In the light of the above statements, choose the most appropriate answer from the options given below :

1. A.Statement I is false but statement II is true.
2. B.Both statement I and statement II are true.
3. C.Both statement I and statement II are false.
4. D.Statement I is true but statement II is false.

Match List - I with List - II : $$\begin{array}{llll}& \text{List - I}& & \text{List - II}\\ & \text{(Class of Chemicals)}& & \text{(Example)}\\ \text{(a)}& \text{Antifertility drug}& \text{(i)}& \text{Meprobamate}\\ \text{(b)}& \text{Antibiotic}& \text{(ii)}& \text{Alitame}\\ \text{(c)}& \text{Tranquilizer}& \text{(iii)}& \text{Norethindrone}\\ \text{(d)}& \text{Artificial Sweetener}& \text{(iv)}& \text{Salvarsan}\end{array}$$ Choose the most appropriate match :

1. A.(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
2. B.(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
3. C.(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
4. D.(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

1. A.
2. B.
3. C.
4. D.

Consider the Assertion and Reason given below. Assertion (A) : Ethene polymerized in the presence of Ziegler Natta Catalyst at high temperature and pressure is used to make buckets and dustbins. Reason (R) : High density polymers are closely packed and are chemically inert. Choose the correct answer from the following:

1. A.Both (A) and (R) are correct and (R) is the correct explanation of (A).
2. B.Both (A) and (R) are correct but (R) is not the correct explanation of (A).
3. C.(A) is correct but (R) is wrong.
4. D.(A) and (R) both are wrong.

The correct match between Item - I and Item - II is : | Item - I | Item - II | | :--- | :--- | | (a) Natural rubber | (I) 1, 3-butadiene + styrene | | (b) Neoprene | (II) 1, 3-butadiene + acrylonitrile | | (c) Buna-N | (III) Chloroprene | | (d) Buna-S | (IV) Isoprene |

1. A.(a) - (IV), (b) - (III), (c) - (II), (d) - (I)
2. B.(a) - (III), (b) - (IV), (c) - (I), (d) - (II)
3. C.(a) - (III), (b) - (IV), (c) - (II), (d) - (I)
4. D.(a) - (IV), (b) - (III), (c) - (I), (d) - (II)

The antifertility drug "Novestrol" can react with :

1. A.$\mathrm{B}{\mathrm{r}}_2/water;\mathrm{ZnC}{\mathrm{l}}_2/HCl;\mathrm{FeC}{\mathrm{l}}_3$
2. B.$\mathrm{B}{\mathrm{r}}_2/water;\mathrm{ZnC}{\mathrm{l}}_2/HCl;\mathrm{NaOCl}$
3. C.$\mathrm{Alcoholic}\mathrm{HCN};\mathrm{NaOCl};\mathrm{ZnC}{\mathrm{l}}_2/HCl$
4. D.$\mathrm{ZnC}{\mathrm{l}}_2/HCl;\mathrm{FeC}{\mathrm{l}}_3;\mathrm{Alcoholic}\mathrm{HCN}$

Match the following drugs with their therapeutic actions : $$\begin{array}{ll}\text{(i) Ranitidine}& \text{(a) Antidepressant}\\ \text{(ii) Nardil}& \text{(b) Antibiotic}\\ \text{(Phenelzine)}& \\ \text{(iii)Chloramphenicol}& \text{(c) Antihistamine}\\ \text{(iv)Dimetane}& \text{(d) Antacid}\\ \text{(Brompheniramine)}& \\ & \text{(e) Analgesic}\end{array}$$

1. A.(i)-(a); (ii)-(c); (iii)-(b); (iv)-(e)
2. B.(i)-(e); (ii)-(a); (iii)-(c); (iv)-(d)
3. C.(i)-(d); (ii)-(a); (iii)-(b); (iv)-(c)
4. D.(i)-(d); (ii)-(c); (iii)-(a); (iv)-(e)

Which polymer has 'chiral' monomer(s) ?

1. A.Nylon 6,6
2. B.Buna-N
3. C.PHBV
4. D.Neoprene

Preparation of Bakelite proceeds via reactions.

1. A.Electrophilic substitution and dehydration
2. B.Condensation and elimination
3. C.Nucleophilic addition and dehydration
4. D.Electrophilic addition and dehydration

Which of the following is a thermosetting polymer?

1. A.Buna-N
2. B.PVC
3. C.NyIon6
4. D.Bakelite

1. A.Polytert-butylene
2. B.Polyisobutane
3. C.Polyisobutylene
4. D.Polyisoprene

Which of the following is a condensation polymer?

1. A.Neoprene
2. B.Buna-S
3. C.Nylon 6, 6
4. D.Teflon

The correct match between Item-I and Item-II is : $$\begin{array}{llll}& \text{Item - I}& & \text{Item - II}\\ \text{(a)}& \text{High density polythene}& \text{(I)}& \text{Peroxide catalyst}\\ \text{(b)}& \text{Polyacrylonitrile}& \text{(II)}& \text{Condensation at high temperature \& pressure}\\ \text{(c)}& \text{Novolac}& \text{(III)}& \text{Ziegler-Natta Catalyst}\\ \text{(d)}& \text{Nylon 6}& \text{(IV)}& \text{Acid or base catalyst}\end{array}$$

1. A.$\text{(a)}\to \text{(IV)},\text{(b)}\to \text{(II)},\text{(c)}\to \text{(I)},\text{(d)}\to \text{(III)}$
2. B.$\text{(a)}\to \text{(III)},\text{(b)}\to \text{(I)},\text{(c)}\to \text{(IV)},\text{(d)}\to \text{(II)}$
3. C.$\text{(a)}\to \text{(II)},\text{(b)}\to \text{(IV)},\text{(c)}\to \text{(I)},\text{(d)}\to \text{(III)}$
4. D.$\text{(a)}\to \text{(III)},\text{(b)}\to \text{(I)},\text{(c)}\to \text{(II)},\text{(d)}\to \text{(IV)}$

1. A.
2. B.
3. C.
4. D.

1. A.N-Methyl urea
2. B.Ammonia
3. C.Formaldehyde
4. D.Methylamine

The structure of Nylon-6 is :

1. A.${\left[(\mathrm{C}{\mathrm{H}}_2{)}_4-\stackrel{\mathrm{O}}{\stackrel{\Vert }{\mathrm{C}}}-\stackrel{\mathrm{H}}{\stackrel{|}{\mathrm{N}}}\right]}_{\mathrm{n}}$
2. B.${\left[\stackrel{\mathrm{O}}{\stackrel{\Vert }{\mathrm{C}}}-(\mathrm{C}{\mathrm{H}}_2{)}_6-\stackrel{\mathrm{H}}{\stackrel{|}{\mathrm{N}}}\right]}_{\mathrm{n}}$
3. C.${\left[\stackrel{\mathrm{O}}{\stackrel{\Vert }{\mathrm{C}}}-(\mathrm{C}{\mathrm{H}}_2{)}_5-\stackrel{\mathrm{H}}{\stackrel{|}{\mathrm{N}}}\right]}_{\mathrm{n}}$
4. D.${\left[(\mathrm{C}{\mathrm{H}}_2{)}_6-\stackrel{\mathrm{O}}{\stackrel{\Vert }{\mathrm{C}}}-\stackrel{\mathrm{H}}{\stackrel{|}{\mathrm{N}}}\right]}_{\mathrm{n}}$

Poly $\beta$–hydroxybutyrate-co-$\beta$-hydroxyvalerate (PHBV) is a copolymer of

1. A.2-hydroxybutanoic acid and 3-hydroxypentanoic acid
2. B.3-hydroxybutanoic acid and 2-hydroxypentanoic acid
3. C.3-hydroxybutanoic acid and 3-hydroxypentanoic acid
4. D.3-hydroxybutanoic acid and 4-hydroxypentanoic acid

The two monomers for the synthesis of Nylon 6, 6 are

1. A.$\mathrm{HOOC}(\mathrm{C}{\mathrm{H}}_2{)}_6\mathrm{COOH},{\mathrm{H}}_2\mathrm{N}(\mathrm{C}{\mathrm{H}}_2{)}_4\mathrm{N}{\mathrm{H}}_2$
2. B.$\mathrm{HOOC}(\mathrm{C}{\mathrm{H}}_2{)}_4\mathrm{COOH},{\mathrm{H}}_2\mathrm{N}(\mathrm{C}{\mathrm{H}}_2{)}_6\mathrm{N}{\mathrm{H}}_2$
3. C.$\mathrm{HOOC}(\mathrm{C}{\mathrm{H}}_2{)}_4\mathrm{COOH},{\mathrm{H}}_2\mathrm{N}(\mathrm{C}{\mathrm{H}}_2{)}_4\mathrm{N}{\mathrm{H}}_2$
4. D.$\mathrm{HOOC}(\mathrm{C}{\mathrm{H}}_2{)}_6\mathrm{COOH},{\mathrm{H}}_2\mathrm{N}(\mathrm{C}{\mathrm{H}}_2{)}_6\mathrm{N}{\mathrm{H}}_2$

1. A.
2. B.
3. C.
4. D.

1. A.
2. B.
3. C.
4. D.