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Chemistry in Everyday Life · Question 11

NEET 2013MCQEasy📈 Topic in 25% papers+4−1
1

Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following statements is not true.

  1. Dilute solutions of boric acid and hydrogen peroxide are strong antiseptics.
  2. Disinfectants harm the living tissues.
  3. A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant.
  4. Chlorine and iodine are used as strong disinfectants.

Answer

(1) Dilute solutions of boric acid and hydrogen peroxide are strong antiseptics.

Solution

As per NCERT, boric acid in dilute aqueous solution is a weak antiseptic (used for eyes), and dilute hydrogen peroxide is also a mild antiseptic.

Statement (1) is not true.

(2) Disinfectants are applied to inanimate objects because they harm living tissues.

(3) As per NCERT, a 0.2 percent solution of phenol is an antiseptic while its 1 percent solution is a disinfectant.

(4) Chlorine (0.2 to 0.4 ppm in water) and iodine are powerful disinfectants.

Answer: (1)

Out of syllabusNEET 2013

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2

Dettol is the mixture of

  1. chloroxylenol and bithional
  2. chloroxylenol and terpineol
  3. phenol and iodine
  4. terpineol and bithionol
Out of syllabusNEET 2013 (Karnataka)
3

Chloramphenicol is an

  1. antifertility drug
  2. antihistaminic
  3. antiseptic and disinfectant
  4. antibiotic-broad spectrum
Out of syllabusAIPMT 2012 (Mains)
4

Which one of the following is employed as antihistamine?

  1. Chloramphenicol
  2. Diphenhydramine
  3. Norethindrone
  4. Omeprazole
Out of syllabusAIPMT 2011 (Prelims)
5

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

  1. Promethazine
  2. Valium
  3. Naproxen
  4. Mifepristone
Out of syllabusAIPMT 2010 (Prelims)
6

Which one of the following is employed as a tranquilizer?

  1. Naproxen
  2. Tetracycline
  3. Chlorpheniramine
  4. Equanil
Out of syllabusAIPMT 2009

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