When we fall in love, our brain suffers some changes and also certain chemical compounds are released. are water insoluble. As a science student, why did Shilpa suggest to Mamta to use synthetic detergent? (ii) Which one of the following drugs is an antibiotic: Question 22: (iii)It is because aspartame is unstable at cooking temperature.

(i) Mr. Amit is kind person who helps his friend in need. to Q.20 (i). Short Answer Type Questions [II] [3 Marks]. Differentiate between disinfectants and antiseptics. Question 29: Name two such substances. We know that N-acetyl-para-aminophenol They may harm our body. What are the following substances? (iii) Refer Ans. (ii) The use of the sweetener aspartame is limited to cold foods and drinks. Give one example of each type These are not applied to living tissues. Question 31: Mention the action of the following on the human body in bringing relief from a disease. It also acts as blood thinner. (iii) Analgesics. Vitamin B complex is water soluble vitamin Which of the following is water-soluble? Answer : (iii) Enzymes: They are biological catalyst which catalyse bio chemical reactions, e.g. Also, this page requires javascript. Those antibiotics which are effective against only particular micro-organism are called narrow spectrum antibiotics. Dyes are coloured organic compounds that are used to impart colour to the various substrate, including paper, leather fur, hair drugs cosmetics. The most common preservative is sodium benzoate, CTTCOONa. Equanil, Morphine, Sodium benzoate Milk of Magnesia [Mg(OH)2], Ranitidine (Zantac), etc. Mr. Roy is concerned about the health of people. (b) What is tincture of iodine and what is it used for? to Q.37 (ii). How do antiseptics differ from disinfectants?

Tranquilizers: Those drugs which reduce anxiety and produce a feeling of well being, e.g. It is used by mouth, injection into a vein, and injection into a muscle. Artificial Sweetness: These do not impart any calories to the body. Let's take a look! (ii) Chloramphenicol is an antibiotic. sodium alkylbenzene sulphonate. What are the values (at least two) displayed by Mr. Roy? to Q. (a)Which one of the following is a food preservative? (i) Antacids: Substances which remove the excess acid and raise the pH to appropriate level in stomach are called antacids, e.g. Dettol is the mixture of [NEET Kar. Answer :

What are analgesic medicines? (i)Cationic detergents After six months, Mr. Chopra conducted the health survey in most of the schools and discovered a tremendous improvement in the health of the students. (iii) Equanil What is astonishing is the amount of applications we make of the gruelling formulae from our chemistry class in our everyday life. Explain the cleaning action of soap. (ii) Synthetic detergents (ii) What are the main constituents of dettol? They also decided to make compulsory half an hour of daily physical activities for the students in the morning assembly. Answer :

(i) Refer Ans. (ii)If water contains dissolved Ca2+ ions, out of soaps and synthetic detergents, which will you use for cleaning clothes? This mock test of Test: Chemistry In Everyday Life - From Past 28 Years Questions for Class 12 helps you for every Class 12 entrance exam. [2007]. They delay these changes and prevent spoilage of food due to microbial growth.

They are chemical substances which prevent the growth of micro-organisms and may even kill […] (b)Why is bithional added to soap? (i) Food preservatives (ii) Which class of drugs is used in sleeping pills? (i) Define Antihistamine with an example. (ii) Synthetic detergents work well even with hard water, therefore, they are more effective than soaps. (i) Antacids (ii) Non-ionic detergents Chemistry in everyday life class 12 important questions. Answer : Explain the following terms with one example in each case: Name a substance that can be used as an antiseptic as well as a disinfectant. It gives relief from allergy. Answer : Artificial Preservatives: These prevent spoilage of food by stopping the growth of microorganism. equanil. She uses ordinary washing soap for washing clothes and she finds that soaps are not very effective in cleaning her clothes. Answer the following questions: Question 2: (iii) Why is use of aspartame limited to cold food and drink? Love is driven by these hormones: oxytocin, vasopressin, endorphins. (ii) Dettol contains chloroxylenol and Terpineol. [2010], Which one of the following is employed asAntihistamine ? He is helpful and focused person and knows how to achieve his goal. Your email address will not be published. Question 28: Equanil, valium and serotonin are some commonly used tranquilizers, Which one of the following is employed as atranquilizer drug? (iii) Refer Ans. Answer : Dettol is a mixture of chloroxylenol and Answer : to Q.22 (iii). Question 30: Non-narcotics: They do not cause addiction, are not habit forming, e.g. urease. (iii) Food preservatives Question 6: What are biodegradable and non-biodegradable detergents ? For more important questions on subject topics or to learn more about chemistry in everyday life, register with BYJU’S. then oxidized in the fabric by air are called.

(i) Tranquilizers: Those drugs which reduce anxiety and produce a feeling of well being, e.g. (i) Refer Ans. to Q.19. temperature is, The class of drugs used for the treatment of stress (a)Define the term ‘Chemotherapy’.

(i) Antifertility drugs (b) NHRC is doing good job to help people to get proper health care. is, The dyes which are used in reduced state and are Answer : Question 48: (i)What are disinfectants? Question 10: Let us now discuss some common examples of chemistry in everyday life which most of us never knew about. Question 33: We all know our body is about 60% water, but then what composes the rest of it? (ii) Disinfectants Dilute solutions of boric acid and After reading the above passage, answer the following questions: Dyes can be prepared by diazo coupling for example, Commonly used antiseptic 'Dettol' is a mixture of               [1996], The mixture of chloroxylenol and terpenol State a reason of the following statement: to Q.32 (i). But we did a great deal of research to finally come up with a massive list of facts about chemistry and explanations. to Q.20 (i). (i) Antifertility drugs: Those drugs which control the birth of the child are called antifertility drugs, e.g.

There are two kinds of rays from the sun which are particularly bad for us, UV-A & UV-B. Explain the following terms giving one example of each type: (ii) Aspirin is analgesic and antipyretic (pain reliever). Mamta, a housewife lives in Sonepat (Haryana). Dilute solutions of Boric acid and HydrogenPeroxide are strong antiseptics. Ranitidine, Avil. Soaps do not function in hard water since they precipitate in it. Question 25:

Answer : (ii) Enzymes Soaps do not work in hard water because Ca2+ and Mg2+ ions present in hard water react with soap to form calcium and magnesium salts of fatty acids which are insoluble in water and form scum. to Q.20 (i). Physics, Mathematics, and Chemistry, all three subjects have equal weightage in this exam. (i) Non-ionic detergents (c)Which class of drugs is used in sleeping pills? Give two examples of artificial sweeteners. Seeing the growing cases of diabetes and depression among young children, Mr. Chopra, the principal of one reputed school organized a seminar in which he invited parents and principals.

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