Q23 of 26 Page 1

Seeing the growing cases of diabetes and depression among young children, Mr. Lugani, the principal of one reputed school organized a seminar in which he invited parents and principals. They all resolved this issue by strictly banning junk food in schools and introducing healthy snacks and drinks like soup, lassi, milk, etc. in school canteens. They also decided to make compulsory half an hour of daily physical activities for the students in the morning assembly. After six months, Mr. Lugani conducted the health survey in most of the schools and discovered a tremendous improvement in the health of the students. After reading the above passage, answer the following questions:

(i) What are the values (at least two) displayed by Mr. Lugani?


(ii) As a student how can you spread awareness about this issue?


(iii) What are antidepressant drugs? Give an example.


(iv) Name the sweetening agent used in the preparation of sweets for a diabetic patient.


(i) Two values shown by Mr. Lugani are:


(a) He is an aware citizen and is concerned about their students’ health.


(b) He also shows his dedication towards it as he again conducted a survey after 6 months.


(ii) As a student, we can aware our neighbours and friends and family about the seminar and can aware them about the same.


(iii)Antidepressant drugs are the medicines used to treat depression. For example: duloxetine.


(iv)Saccharine is used for the preparation of sweets for diabetic patients as its sweetness content is very high and even a tiny amount is enough for the preparation of sweets.


More from this chapter

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21

Write the names and structures of the monomers of the following polymer units:

(i) Nylon-6


(ii) Novolac


(iii) Buna-S


 22

(i) Which one of the following is a polysaccharide: starch, maltose, fructose, glucose?

(ii) What is the difference between native protein and denatured protein.


(iii) Write the name of vitamin responsible for the coagulation of blood.


 24

(a) Illustrate the following reactions giving suitable example in each case:

(i) Hoffman Bromide Degradation reaction.


(ii)Diazotization


(iii) Gabriel Phthaliamide Synthesis


(b) Distinguish between the following pair of compounds:


(i)Aniline and N-methylaniline


(ii) (CH3)2NH and (CH3)3N


OR


(a) write the structures of main products when benzene diazonium chloride (C6H5N2+Cl-) reacts with the following reagents


(i) CuCN/KCN


(ii) H2O


(iii) CH3CH2OH


(b) Arrange the following:


(i) C2H5NH2, C2H5OH, (CH3)3N – in the increasing order of their boiling point.


(ii) Aniline, p-nitroaniline, p-methylaniline-in the increasing order of their basic strength.


 25

(a) What is the rate of reaction? Write two factors that affect the rate of reaction?

(b) The rate of first order reaction increases from 4 × 10-2 to 8 × 10-2 when the temperature changes from 27° C to 37° C. Calculate the activation energy (Ea)


(Given: log2=0.301, log3 =0.4771, log4=0.6021)


OR


(a) for a reaction A + B → P, the rate is given by,


Rate = K [A][B]2


(i) How is the rate of reaction affected if the concentration of B is doubled?


(ii) What is the overall order of reaction if A is present in large excess?


(b) a first order reaction takes 23.1 minutes for 50% completion. Calculate the time required for 75% completion of this reaction. (log2=0.301, log3 =0.4771, log4=0.6021)