Match List - I and List - II.
List - I: (a) Valium, (b) Morphine, (c) Norethindrone, (d) Vitamin B12
List - II: (i) Antifertility drug, (ii) Pernicious anaemia, (iii) Analgesic, (iv) Tranquilizer
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Analgesics reduce pain without loss of consciousness. Tranquilizers treat stress and mild/severe mental diseases.
Step 1:Valium (Diazepam) is used for anxiety relief, making it a Tranquilizer.
Step 2:Morphine is a potent painkiller, making it an Analgesic.
Step 3:Norethindrone is a synthetic progesterone used in birth control, so it is an Antifertility drug.
Step 4:Vitamin B12 deficiency causes Pernicious anaemia.