Lakshya Education MCQs

  1. Topics
  2. 11th And 12th
  3. Chemistry
  4. Polymers
Question: Which of the following is a monomer of natural rubber?
Options:
A.Neoprene
B.Isoprene
C.Chloroprene
D.Buna-N
Answer: Option B
: B

Isoprene isthe monomer of natural rubber.


Previous Next

Submit Answer & Explaination

Earn Reward Points by submitting Detailed Explaination for this Question

More Questions on This Topic :

Question 1. The monomeric units of terylene are glycol and which of the following?

: D

Question 2. Which of the following is not produced by condensation polymerisation?
  1.    Buna-S
  2.    Dacron
  3.    Novolac
  4.    Nylon 6
Answer: Option A
: A

Buna-S is produced by the addition polymerisation of 1,3-butadiene and Styrene.
Question 3. Which of the following polymer is an example of fibre?
  1.    Silk
  2.    Dacron
  3.    Nylon-6, 6
  4.    All of these
Answer: Option D
: D

Silk is a protein fibre. Dacron is a polyester fibre and Nylon-6,6 is a polyamide fibre.
Question 4. Which of the following statements is correct regarding the drawbacks of raw rubber?
  1.    It is not elastic in nature
  2.    It has high durability
  3.    It doesn’t absorb water
  4.    All of these
Answer: Option A
: A

The raw rubber is not elasticwhen found innature. It becomes soft at high temperature. It has little durability and it has large water absorption capacity.
Question 5. Which of the following is used in vulcanization of rubber?
  1.    SF6
  2.    CF4
  3.    Cl2F2
  4.    C2F2
Answer: Option A
: A

SF6 is used in the vulcanisation of rubber. Sulphur is heated with rubber to introducecross-linking and thusform a tougher form of rubber.

Check all Questions in this Topic : Click HERE

Recent Questions

Q.  the Mouse ..................... Usually Appears In The Sha....Q. When A Body, Floating In A Liquid, Is Given A Small Angular ....Q. Constitution Day Of India Is On-....Q. A Business Is Part Of A Financial System In Which There Are ....Q. The Condition For The Validity Under Ohm’s Law Is That....Q. In SQL, Which Command Is Used To Create A Database User?....Q. The Discharge Is __________ At Critical Pressure.....Q. The Performance Of Air Compressor At High Altitudes Will Be ....Q. $$5.5 - \left[ {6.5 - \left\{ {3.5 \div \left( {6.5 - \overl....Q. Which Of The Following Is Definitely False According To The ....Q. Other Conditions Being Same, The Load Factor In Indeterminat....Q. The Vertical Side Member Of A Shutter Frame, Is Known....Q. He Abandoned His Family.....Q. Find The Odd Number / Letters / Word From The Given Alternat....Q. What Is The Purpose Of A JavaScript Debugger?....Q. If The Volume Of A Cube Is 1000 cm3, Then The Length Of....Q. Expansion Joints In Masonry Walls Are Provided In Wall Lengt....Q. Choose The Correct Equation.....Q. Which Of The Following Numbers Is Exactly Divisible By 24 ?....Q. In Boolean Algebra, The Bar Sign (-) Indicates ___________.....