NEET Chemistry Chemistry in Everyday Life Questions Solved


Which one of the following is employed as antihistamine?

(a) Diphenyl hydramine

(b) Norethindrone

(c) Omeprazole

(d) Chloramphenicol

(a) Diphenyl hydramine (benadryl) is used as an antihistamine.

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Which one of the following is employed as a of tranquiliser drug?

(a) Promethazine

(b) Valium

(C) Naproxen

(d) Mifepristone

(b) Tranquiliser are the chemicals that reduce anxiety and mental tensional. Tranquiliser is the strain reliever also used for mild and essential component of sleeping pills. Thus, they are sometimes called psychotherapeutic drugs. Equanil, valium and serotonin and barbiturates (hypnotic) are some commonly used tranquilisers.

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Which of the following hormones contains iodine?

(a) Insulin

(b) Testosterone

(c) Adrenaline

(d) Thyroxine

(d) Thyroxine is 3, 5, 3', 5-tetra iodothyronine. It is secreted by follicular cells of thyroid glands. Its structure is as

Thyroxine stimulates the consumption of oxygen and thus, the metabolism of all cells or tissues in the body.

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Which of the following protein destroy the antigen when it enters in body cell?

(a) Antibodies

(b) Insulin

(c) Chromoprotein

(d) Phosphoprotein

 

(a) Antibodies are the proteins which protect the body against toxic substances and infections. When an antigen enter in the body cells, the antibodies present in the body destroyed the antigen.

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Vitamin- B12 contains

1. Zn (II)

2. Ca (II)

3. Fe (II)

4. Co (II)

(d) The molecular formula of vitamin-B12 is C63H84 N14O14 PCO and the chemical name is cyanocobalamine. So, cobalt is present in vitamin-B12.

 

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Enzymes take part in a reaction and

(a) decrease the rate of a chemical reaction

(b) increase the rate of a chemical reaction

(c) Both (a) and (b)

(d) None of the above

(b) The enzymes are biological catalyst produced by living cells which increase the rate of biochemical reactions in living organisms.

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Which one of the following vitamins is water-soluble?

(a) Vitamin-B

(b) Vitamin-E

(C) Vitamin K

(d) Vitamin A

(a) Vitamins are classified as

(i) Fat soluble vitamin-A, D, E, K

(ii) Water soluble vitamin-B complex, H and C

So, vitamin-B is water soluble.

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Which one of the following is employed as a tranquiliser?

(a) Equanil

(b) Naproxen

(c) Tetracycline

(d) Chlorpheninamine

(a) The drugs which are used to reduce anxiety and for the treatment of mental diseases, are called tranquilisers. These drugs are also known as pyschotherapeutic drugs. Luminal, seconal and equanil are some commonly used and is an example of tranquiliser

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Commonly used antiseptic 'Dettol' is a mixture of

(a) o-chlorophenoxylenol + terpineol

(b) o-cresol + terpineol

(c) phenol + terpineol

(d) chloroxylenol + terpineol

(d) Dettol is an antiseptic. It is a mixture of chloroxylenol and terpineol in a suitable solvent.

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In reference to biological role, Ca2+ ions are important in

(a) triggering the contraction of muscles

(b) generating the right electrode potential across cell membrane

(c) hydrolysis of ATP

(d) defence mechanism

(2) The Ca2+ ion generates the right electrical potential across cell membrane.

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