What are the following substances? Give one example of each.
(i) Food preservatives
(ii) Synthetic detergents
(iii) Antacids(i) Food Preservatives: These are the chemical substances which are added to the food materials to prevent their spoilage due to microbial growth and to retain their nutritive value for a long time. Sodium benzoate, sodium metabisulphite are some common preservatives. Preservatives prevent rancidity and kill or inhibit the growth of the microorganism.
(ii) Synthetic Detergents: Detergents are cleaning agents which have all the properties of soaps, but actually do not contain any soap e.g., sodium dodecylbenzene sulphonate. These can be used both in soft and hard water as they give foam even in hard water.
Detergents are mainly classified into three categories:
(i) Anionic detergents
(ii) Cationic detergents
(iii) Non-ionic detergents
(iii) Antacids: These are the chemical substances which neutralize the excess acid and raise the pH to an appropriate level in the stomach. Sodium hydrogen carbonate or a mixture of aluminium and magnesium hydroxide are some common antacids.
Due to hectic and busy schedule, Mr. Angad made his life full of tensions and anxiety. He started taking sleeping pills to overcome the depression without consulting the doctor. Mr. Deepak, a close friend of Mr. Angad, advised him to stop taking sleeping pills and suggested to change his lifestyle by doing Yoga, mediation and some physical exercise. Mr. Angad followed his friend's advice and after few days he started feeling better.
After reading the above passage, Ans the following:
(i)What are the values (at least two) displayed by Mr. Deepak?
(ii)Why is it not advisable to take sleeping pills without consulting a doctor?
(iii)What are tranquillizers? Give two examples.
On the occasion of World Health Day, Dr Satpal organised a 'health camp' for the poor farmers living in a nearby village. After the check-up, he was shocked to see that most of the farmers suffered from cancer due to regular exposure to pesticides and many were diabetic. They distributed free medicines to them. Dr. Satpal immediately reported the matter to the National Human Rights Commission (NHRC). On the suggestions of NHRC, the government decided to provide medical care, financial assistance, setting up of super-speciality hospitals for treatment and prevention of the deadly disease in the affected villages all over India.
(i) Write the values shown by
(a) Dr. Satpal
(b) NHRC
(ii) What type of analgesics are chiefly used for the relief of pains of terminal cancer?
(iii) Give an example of artificial sweetener that could have been recommended to diabetic patients.
Due to hectic and busy schedule,Mr.Singh started taking junk food in the lunch break and slowly became habitual of eating food irregularly to excel in his field. One day during the meeting he felt severe chest pain and fell down. Mr Khanna, a close friend of Mr. Singh took him to doctor immediately. The doctor diagnosed that Mr Singh was suffering from acidity and prescribed some medicines. Mr Khanna advised him to eat home made food and change his lifestyle by doing yoga,meditation and some physical exercise. Mr Singh followed his friend's advice and after few days he started feeling better.
after reading the above passage, answer the following:
i) what are the values (at least two) displayed by Mr Khanna?
ii) What are antacid? Give one example
iii) would it be advisable to take an antacid for a long period of time ? Give
