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HCS (Haryana)Prelims2023General Studies
Question
Match List I with List II List I (Chemical Compounds) A. Norethindrone B. Alitame C. Cetyltrimethylammonium Bromide D. Phenelzine List II (Usage) 1. Cationic detergent 2. Antifertility drug 3. Artificial Sweetener 4. Anti-depressant drug
Options
- A A-3, B-2, C-4, D-1
- B A-2, B-3, C-1, D-4
- C A-1, B-4, C-1, D-3
- D A-4, B-3, C-2, D-1
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Correct Answer
B A-2, B-3, C-1, D-4
Model Answer
Norethindrone
- Norethindrone is used to prevent pregnancy.
- It works by stopping a woman's egg from fully developing each month.
- The egg can no longer accept a sperm and fertilization (pregnancy) is prevented.
Alitame
- Alitame is a sweetener made from amino acids, such as l-aspartic acid and d-alanine.
- It is about 2,000 times sweeter than sucrose (table sugar) and about 10 times sweeter than aspartame.
Cetyltrimethylammonium Bromide
- CTAB is also a cationic detergent that can separate polysaccharides during purification.
- CTAB-based extraction buffers are often used to purify DNA from plant tissues.
Phenelzine
- Phenelzine is used to treat depression in people who have not been helped by other medications.
- Phenelzine is in a class of medications called monoamine oxidase inhibitors (MAOIs).