12th Chemistry Unit 14 MCQs Short and Long Questions

12th Chemistry Unit 14 Important Questions

12th Chemistry Unit 14 important MCQs, Short questions and Long Questions from Past Papers.

12th Chemistry Unit 14 Test

Here is 12th Chemistry Unit 14 important Questions for the preparation of fsc annual examinations for the students of Medical and Non Medical.

Macromolecules

Each question has four possible answers. Select the correct answer and circled it.       

v  Which of the polymer is an addition polymer

(a) Nylon 6,6                    

(b) Polystyrene    

(c) Terylene                     

(d) Epoxy Resin

v  Which of the polymer is a synthetic polymer

(a) Animal fat                  

(b) starch              

(c) cellulose                     

(d) Polyester

v  The fibre which is made from Acrylonitle as Monomer

(a) PVC                            

(b) Rayon fibre    

(c) Acrylic fibre               

(d) Polyester fibre

v  Which polymer is used in manufacturing of food container, cosmetic bottles

(a)  Polysterene                

(b) Polyvinyl Acetite       

(c) Acrylic Resine           

(d) b and c

v  The simple sugars which cannt be hydrolysed are called

(a) Monosaccharides       

(b) Disaccharides             

(c) Polysaccharicdes        

(d) b & c

v  Which one of the following enzymes brings about the hydrolysis of fats

(a) urease                        

(b) maltase                       

(c) Zymas                        

(d) lipase

v  Our own body contains different kinds of proteins

(a)10000                          

(b) 1500               

(c)  1000                           

(d) 1500

v  Enzyme may speed up reactions up to

(a) 10¹⁰ times                   

(b) 10²⁰ times                   

(c) 10¹⁵ times                   

(d) 10³⁰ times

v  Hardened oils are extensively used for making

(a) soaps                           

(b) candles                       

(c)  Margarine                  

(d)  all of them

v  Sucinic thiokinases is the example of

(a) transferases                 

(b) Hydrolases     

(c) Lyases                        

(d) Ligases

B).       Give Short Answer of the following                                                                       

1.         What is polyvinyl Acetate give example. Write its uses.

2.         What is Glycogen.

3.         How protein is denatured.

4.         How rancidity is produced in fats and oils.

5.         What is iodine number.

Q.No.2.                                                                                                                                  

(a)        What is starch, give examples. Also write the uses of starch.  

(b)       Write and Explain five factors which affect on the activity of enzyme. 

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