Methyl orange is the example of which type of dye ?

• Acid dye

• Mordant dye

• Azo dye

• Both (a) and (c)

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⁺

Cobalt - 60 is used in the treatment of :

• leukaemia

• thyroid disorders

• cancer

• pneumonia

Substance used as antiseptic for curing wounds is :

• equanil

• iodine

• proguanil

• bithional

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

Soaps can be classified as :

• carbohydrates

• ether

• salts of fatty acids

• none of these

Which of the following is not a broad spectrum antibiotic ?

• Tetracycline

• Chloromycetin

• Penicillin

• None of these

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.

Formula of microcosmic salt is

• Na₂HPO₄

• Na(NH₄)HPO₄

• K₂HPO₄

• Na₂PO₄.K₂PO₄

Paracetamol is:

• methyl salicylate

• phenyl salicylate

• N-acetyl p-amino phenol

• acetyl salicylic acid