Home
Class 12
CHEMISTRY
Assertion (A) Rayon is a semisynthetic p...

Assertion (A) Rayon is a semisynthetic polymer and is taken as a better choice than cotton fabric.
Reason (R ) Mechanical and aesthetic properties of cellulose can be improved by Acetylation

A

Assertion and reason both are correct statements and reason does not explain assertion.

B

Assertion and reason both are correct statements but reason explains the assertion.

C

Both assertion and reason are wrong statements.

D

Assertion is correct statement and reason is wrong statement.

Text Solution

Verified by Experts

The correct Answer is:
B

Reason is the correct explanation of assertion.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • POLYMERS

    PRADEEP|Exercise NCERT (Examplar Problems with answers , Hints and Solutions (Long Answer Questions))|5 Videos
  • POLYMERS

    PRADEEP|Exercise Additional Questions (VERY SHORT ANSWER QUESTIONS)|36 Videos
  • POLYMERS

    PRADEEP|Exercise NCERT (Examplar Problems with answers , Hints and Solutions (Matching Type Questions))|7 Videos
  • P-BLOCK ELEMENTS

    PRADEEP|Exercise IMPORTANT QUESTIONS FOR BOARD EXAMINATION|25 Videos
  • REDOX REACTIONS

    PRADEEP|Exercise Assertion reason type question|16 Videos

Similar Questions

Explore conceptually related problems

Assertion (A): Copolymers have properties quite different from homopolymers. Reason (R) : Rubber is a natural polymer and possesses elastic properties.

Assertion (A) : Artificial insemination breeding technique is better than natural breeding . Reason (R) : In induced breeding of fishes , the ovulation is stimulated by hypophysation

Knowledge Check

  • Assertion (A) Rayon is a semisynthetic polymer and is taken as a better choice than cotton fabric. Reason (R ) Rayon is a semisynthetic polymer and is taken as a better choice than cotton fabric Reason (R ) Mechanical and aesthetic properties of cellulose can be improved by Acetylation

    A
    Assetion and Reason both are correct statement But reason does not explain Assertion
    B
    Assertion and Reason both are correct statements and Reason explains the Assertion.
    C
    Both assertion and reason are wrong sttement s
    D
    Assertion is correct statement and Reason is worng statement.
  • Assertion : Rayon is a semi-synthetic polymer and is taken as a better choice than cotton fibric . Reason : Mechanical and aesthetic properties of cellulose can be improved by acetylation .

    A
    If both assertion and reason are true and reason is the correct explanation of assertion .
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion .
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.
  • Assertion : Cellulose acetate is a semisynthetic polymer. Reason : Chemical name of cellulose acetate polymer is rayon.

    A
    If both the assertion and reason are true and the reason is the correct explanation of the assertion
    B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.
  • Similar Questions

    Explore conceptually related problems

    An assertion (A) and a reason (R) are given below. Assertion (A) : Urban India is sicker than rural India in spite of better healthcare facilities. Reason (R): Urban life is facing the problems of increasing pollution levels, unhygienic garbage dumping, and a fast food culture. Choose the correct option .

    Assertion (A): To orbit around Sun, the planet Mars takes lesser time than time taken by the Earth. Reason (R): The diameter of the planet Mars is less than that of the Earth

    This section contains Assertion (a) and Reasons (R) type questins. Each questin has 4 choices (1), (2), (3) and (4), out of which only one is correct. (1) Bothe Assertion and Reason are correct and Reason is the correct explanation of the Assertion (2) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion (3) Assertion is correct but Reason is incorrect (4) Both Assertion and Reason are incorrect Assertion(A) All isotopes of a given element show the same type of chemical behaviour. Reason(R) The chemical properties of an atom are controlled by the number of electrons in the atom.

    Assertion (A): Food cans are not coated with zinc. Reason (R): Because zinc is less reactive than tin.

    In the following question a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as : Assertion (A): Heroin, the smack is chemically diacetylmorphine. Reason (R): Heroin is obtained by acetylation of morphine.