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Chemistry In Everyday Life & Polymers 08-12-2018


40 Questions MCQ Test AAKSC Chemistry Mock test Series | Chemistry In Everyday Life & Polymers 08-12-2018


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Attempt Chemistry In Everyday Life & Polymers 08-12-2018 | 40 questions in 45 minutes | Mock test for Class 12 preparation | Free important questions MCQ to study AAKSC Chemistry Mock test Series for Class 12 Exam | Download free PDF with solutions
QUESTION: 1

Natural rubber is a polymer of :    

Solution:

Natural rubber is 1,4-addition product of Isoprene. It involves formation of cis-isomer.

QUESTION: 2

The catalyst used in the manufacture of polyethene by Zeigler method is:    

Solution:

Zeigler-natta polymerisation involves coordination polymerisation & give HDPE

QUESTION: 3

Which of the following statements is not true?    

Solution:

Norethindrone is not a pheromone. It is a progestin hormone.

It is used for treating certain menstrual and uterine problems.

It works by altering the lining of uterus.

QUESTION: 4

Which of the following statements is not correct?    
Solution:

Conceptual

QUESTION: 5

Select the detergent that is used to prepare cosmetics.    
Solution:

CetyitrimethyI ammonium chloride is a cationic detergent. It is used to prepare cosmetics because it possesses germicidal properties.

QUESTION: 6

Atiseptics are different from disinfectants as:    
Solution:

Conceptual

QUESTION: 7

Which of the following has ester linkage?    
Solution:

QUESTION: 8

Give the monomers of nylon-66.    
Solution:

Conceptual

QUESTION: 9

The number average molecular mass and mass average molecular mass of a polymer are respectivey 30.000 and 40,000. The poly dispersity index of the polymer is:    
Solution:

QUESTION: 10

 
Solution:

It is a condensation product of hexamethylene diamine and adipic acid

QUESTION: 11

In a polymer sample, 30% of molecules have a molecular mass of 20,000, 40% have 30,000 and th erest 60,000. What is the weight average molecular mass of the polymer?    
Solution:

QUESTION: 12

Which one of  the following is not a correct match?  

 
Solution:

Acrylonitrile (CH_2=CHCN) is the monomer unit of orlon polymer.

QUESTION: 13

Chain transfer reagent is:    
Solution:

Conceptual

QUESTION: 14

Which one of the following statements is not true?    
Solution:

Natural rubber is cis-configuration of 1,4-polyisoprene or

QUESTION: 15

Which of the following statements is not correct?    
Solution:

Nylon 6,6 is made from two monomers, adipic acid and hexamethylene diamine.

QUESTION: 16

Which of the following statements is false?    
Solution:

Nylon-6,6 is fibre

QUESTION: 17

Which one of the following sets form the biodegradable polymer?
Solution:

form biodegradable polymer

QUESTION: 18

Which of the following compounds is aspirin?    
Solution:

Aspirin, also known as acetylsalicylic acid, is a medication used to reduce pain, fever, or inflammation. Specific inflammatory conditions which aspirin is used to treat include Kawasaki disease, pericarditis, and rheumatic fever. Aspirin given shortly after a heart attack decreases the risk of death.

QUESTION: 19

Paracetamol is/are:    
Solution:

Conceptual

QUESTION: 20

Which of the following is used as an antiseptic?    
Solution:

Dilute solution of phenol can act as antiseptic

QUESTION: 21

Which of the following can disperse benzene in water?
Solution:

Compound with hydrophobic tail & hydrophilic head

QUESTION: 22

Choose the correct statement.    
Solution:

Conceptual

QUESTION: 23

Detergents are known to pollute rivers and water ways. However, detergents can be made biodegradable and pollution free by taking:    
Solution:

Detergent molecules associated with branched hydrocarbon tail which is a source of pollution of water. However, detergents can be made biodegradable and pollution free by taking unbranched hydrocarbon chain because unbranched chains are more prone to attack by bacteria.

QUESTION: 24

Which one of the following pairs is not correctly matched?    
Solution:

Teflon is polymer of tetraflouroethylene

QUESTION: 25

The bakelite is made from phenol and formaldehye. The initial reaction between the two compounds is an example of:    
Solution:

Phenol acts as nucleophile & formaldehyde as an electrophile.

QUESTION: 26

What is not true about polymers?    
Solution:

Polymers are macromolecules with high molecular weights.

QUESTION: 27

Cellulose acetate is a :    
Solution:

Conceptual

QUESTION: 28

Which of the following is an example of non-biodegradable detergent?
Solution:

Branched alkyl sulphonates are non-biodegradable

QUESTION: 29

Which one of the following substances is a good detergent in water?    
Solution:

Conceptual

QUESTION: 30

Select the incorrect statement.    
Solution:

Conceptual

QUESTION: 31

Aspartame is one of the good artifical sweeteners whose use is limited to cold food and soft drinks because:    
Solution:

Conceptual

QUESTION: 32

What should be the feature of detergent molecule structure so as to be biodegradable?    
Solution:

Conceptual    

QUESTION: 33

Synthetic rubber is:    
Solution:

Synthetic rubber (neoprene) is a polymer of  or chloroprene.

QUESTION: 34

Example of addition polymer?    
Solution:

Buna-S

QUESTION: 35

Which of the following is commonly called a “polyamide”?    
Solution:

Nylon-6,6 is polyamide having

 is nylon-6,6

QUESTION: 36

The polymer containing  strong intermolecular forces, e.g., hydrogen bonding is:    
Solution:

Due to the presence of  

QUESTION: 37

Which one is classified as a condensation polymer?    
Solution:

It is a fact

QUESTION: 38

Which of the following is an example of a thermosetting polymer?
Solution:

Bakelite is thermosetting polymer.

QUESTION: 39

Which of the following is correct?    
Solution:

Conceptual+

QUESTION: 40

Which of the following is incorrect?    
Solution:

Conceptual

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