31 Year NEET Previous Year Questions: Chemistry in Everyday Life (Old NCERT) - NEET MCQ

• One of the most known antiseptic, dettol is a mixture of terpineol and chloroxylenol.
• These two ingredients make Dettol an effective antiseptic and disinfectant that kills bacteria.
   

N-acetyl-para-aminophenol(or paracetamol) is an antipyretic which can also be used as an Analgesic to relieve pain without addiction and mood modification.

• B−complex (vitamins B group) is a water-soluble vitamin.
• Also, vitamin C is a water-soluble vitamin.
• Vitamin A, D, E and K are fat-soluble vitamins.

Tranquillizers are chemicals that reduce anxiety and mental tension. They are sometimes called psychotherapeutic drugs.
Example: Equanil, valium and serotonin 

However,  Naproxen is analgesic, while tetracycline and chlorpheniramine are antibiotics.

• Tranquillizers are chemicals that reduce anxiety and mental tension.
• They are sometimes called psychotherapeutic drugs. 
• Example: Equanil, valium and serotonin. 

Valium is a tranquilizer drug. It is mainly used to treat anxiety, insomnia, and symptoms of acute alcohol withdrawal. It acts by enhancing the effects of gamma-aminobutyric acid (GABA) in the brain.

• Diphenyl hydramine is employed as an antihistamine.
• Other antihistamines used are ranitidine, cimetidine, terfenadine, brompheniramine etc. 
• These drugs prevent the interaction between histamine and receptors in the stomach wall, releasing less amount of acid.

• Vitamin A, D, E and K are fat-soluble vitamins.
• B−complex (vitamins B group) is a water-soluble vitamin.
• Also, vitamin C is a water-soluble vitamin.

Chloramphenicol is a broad-spectrum antibiotic, and thus, can be used against a large number of gram-positive and gram-negative bacteria.

Additional Information: A broad-spectrum antibiotic is an antibiotic that acts on the two major bacterial groups, Gram-positive and Gram-negative, or any antibiotic that acts against a wide range of disease-causing bacteria 

• A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant.
• Chlorine and Iodine are used as strong disinfectants.
• A dilute solution of boric acid is an antiseptic used to wash eyes and hydrogen peroxide is a disinfectant.
• Disinfectants harm the living tissues.

Hence, statement C is not true. 

• One of the most known antiseptic, dettol is a mixture of terpineol and chloroxylenol.
• These two ingredients make Dettol an effective antiseptic and disinfectant that kills bacteria.