CBSE Class 12 Chemistry Chemistry In Everyday Life VBQs

Question. Which of the following is an antidiabetic drug?
(a) Insulin
(b) Penicillin
(c) Chloroquine
(d) Aspirin
Answer : A

Question. Further growth of cancerous cells in the body is arrested by
(a) physiotherapy
(b) chemotherapy
(c) electrotherapy
(d) psychotherapy
Answer : B

Question. Amoxycillin is semi-synthetic modification of
(a) penicillin
(b) streptomycin
(c) tetracyclin
(d) chloroampheniol
Answer : A

Question. Barbituric acid and its derivatives are well known
(a) antipyretics
(b) analgesics
(c) antiseptics
(d) traquillizers
Answer : D

Question. Which of the following acts as an antioxidant in edible oils ?
(a) Vitamin B
(b) Vitamin C
(c) Vitamin D
(d) Vitamin E
Answer : D

Question. Substances used for bringing down temperature in high fever are called
(a) pyretics
(b) antipyretics
(c) antibiotics
(d) antiseptics
Answer : B

Question. The drug which is effective in curing malaria is
(a) quinine
(b) aspirin
(c) analgin
(d) equanil
Answer : A

Question. Sulphaguadine is used for
(a) dysentery
(b) urinary infections
(c) antiseptic
(d) antipyretic
Answer : A

Question. Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following statements is not true:
(a) Chlorine and iodine are used as strong disinfectants.
(b) Dilute solutions of boric acid and hydrogen Peroxide are strong antiseptics.
(c) Disinfectants harm the living tissues.
(d) A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant.
Answer : B

Question. A medicine which promotes the secretion of urine is called
(a) uretic
(b) monouretic
(c) diuretic
(d) triuretic
Answer : C

Question. A drug effective in the treatment of pneumonia, bronchitis, etc, is
(a) streptomycin
(b) chloramphenicol
(c) penicillin
(d) sulphaguanidine
Answer : C

Question. H₁ – Receptor antagonists is a term associated with :
(a) Antiseptics
(b) Antihistamins
(c) Antacids
(d) Analgesics
Answer : B

Question. Which one of the following can possibly be used as analgesic without causing addiction and mood modification?
(a) Diazepam
(b) Morphine
(c) N-acetyl-para-aminophenol
(d) Tetrahydrocannabinol
Answer : C

Question. Structuraly biodegradable detergents, should contain
(a) normal alkyl chain
(b) branched alkyl chain
(c) phenyl side chain
(d) cyclohexyl side chain
Answer : B

Question. Match the chemicals in Column I with their uses in Column II.

(a) A - I, B - II, C - III, D - IV
(b) A - II, B - III, C - IV, D - I
(c) A - III, B - I, C - II, D - IV
(d) A - IV, B - I, C - II, D - III
Answer : C

Chemistry in everyday life

1)There is a poster with the slogan” Hum do hamare do” pasted on a wall Answer the following questions based on above slogan:

i) What message does above slogan convey?

ii)Use of condoms and anti-fertility drugs help in avoiding pregnancy Name one anti-fertility drug and one polymer used in the manufacture of condoms iii)Which value is promoted through the poster What are the disadvantages and advantages related to violation of this value?

Answer: i) Family planning

        ii) Norethindrone or novestrol

       iii) Values: population control,T he increase population has caused many social problems such as shortage of food, environmental issues, unemployment etc.

2) You have gone to a chemist shop to get medicines. A person is pleading with the shopkeeper to get sleeping pills without doctor’s prescription .The Chemist is reluctant to give him sleeping pills without doctor’s prescription stating that the pills can be misused and have adverse effects.

Answer the following questions based on the above information

i) Should the shopkeeper give sleeping pills to the customer even when he does not have doctor’s prescription “. Justify your answer 

ii)Is there any alternative approach / action the shopkeeper can take to help the customer without giving him the pills? Which values are reflected in this alternative approach?

Answer: a) i) No . Such medicines should not be given without proper prescription Or verification because these medicines can be used in many ways. An overdose of these pills can even result in death of a person

ii) alternatives:  a) Directly taking to doctor and seeking his/her advice Value: Professional ethnics

                            b) Seeking more information about patient’s past history to know the reasons for sleeplessness and advising the customer to consult another doctor before taking sleeping pills.

3) Ashraf is 50 years old and has diabetes. He uses saccharine as sweetening agent in tea and coffee and sugar free in sweets. Lakshmi too is diabetic. She controls her sugar level in diet by using less sugar and by exercising.

a. Who is able to handle diabetes more efficiently and why?

b. What value do you derive from this?

c. What are the harmful effects of artificial sweeteners?

Answer: a). Lakshmi is able to handle diabetes better, because exercises activate the pancreases to produce insulin. Exercise keeps one fit and fine.

        b. It is necessary to lead a disciplined life.

        c. Researches have shown that the artificial sweeteners have harmful effect on the body because they are not excreted easily.

4) Ajay observed that his friend Abhay was showing a change in behaviour from past couple weeks. Abhay stayed aloof, did not play and mingle with friends and became easily irritable. He avoided going in any function and parties. Ajay shares his concerns with his class teacher . The teacher callsAbhay’s parents and advises them to consult a doctor . Doctor prescribes antidepressant drugs for him

I) Name some antidepressant drugs

ii) Mention the values shown by Ajay

iii) How should Abhay’s family help him other than medicines?

Answer: i) Iproniazid and Phenelzine

       ii) Concern of friend, caring nature, health concern

       iii) By trying to help him stay happy, self-worthy,sharing his problems 

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