Contents

Which of the following is/are used when heated with an alkali NaOH. Organic soap is produced?
a) oil      

b) fats   

c) water 

d) both a and b


Oil and fats when heated with NaOH, they produce organic soap. What is this reaction?
a) neutralization                 

b) ionization
c) saponification                 

d) decantation


In making soap, the coconut oil and olive oil heat up to……..
a) 50◦C 

b) 100◦C               

c) 5◦C    

d) 10◦C



Milk Plastic:

Milk contains many molecules of a protein called casein. Each casein molecule is a monomer and a chain of casein monomers is a polymer. The polymer can be scooped up and molded, which is why plastic made from milk is called casein plastic.


Which of the following is/are nutrient-rich liquid?
a) water                                

b) alcohol
c) milk                                   

d) all of these


Which of the following nutrient/s is/are present in milk?
a) protein                                              

b) carbohydrate
c) fats                                    

d) all of these