Which of the following is not a broad spectrum antibiotic ?
Tetracycline
Chloromycetin
Penicillin
None of these
C.
Penicillin
Penicillin is not a .broad spectrum antibiotic , it discovered by Alexander Flemming .It is effective against pneumonia , bronchitis , sore throat etc .
The IUPAC name of compound is :
CH2=CH-CH(CH3)2
1 - isopropylethylene
2 - vinyl propane
3 - methyl 1 - butene
1 , 1 , dimethyl 1 , 2 - propene
Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following is not true.
A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant.
Chlorine and iodine are used as strong disinfectants.
Dilute solutions of boric acid and hydrogen, peroxide are strong antiseptics.
Disinfectants harm the living tissues.
Which one of the following is not a surfactant?
CH3 - (CH2)15 - (CH3)2N+ - CH3Br-
CH3 - (CH2)14 - CH2 - NH2
CH3 - (CH2)16 - CH2OSO2-Na+
OHC - (CH2)14 - CH2 - COO-Na+