Which of the following groups is not an auxochrome ?
(1)-N(CH3)2
(2)-OH
(3)-OCH3
(4)
The compounds used to fix a dye to fabric is known as:
(1) mordant
(2) azeotrope
(3) bleaching agents
(4) lake
Which one is disperse dye?
(1) Congo red
(2) Alizarin
(3) Celliton
(4) None of these
Red ink is prepared from :
(1) Phenol
(2) Aniline
(3) Congo red
(4) Eosin
Alizarin a mordant dye is not used in:
(1) cotton dyeing
(2) printing
(3) painting
(4) Chromium lakes for wood dyeing
Which of the following structures represents a colourless substance?
1.
(2) C6H5-N=N-C6H5
(3) C6H5-NH-NH-C6H5
(4) None of the above
Malachite green is a direct dye for silk and wool. It is prepared by condensing:
(1) Benzaldehyde and dimethyl aniline
(2) carbonyl chloride and dimethyl aniline
(3) benzene diazonium chloride with dimethyl aniline
(4) none of the above
The mixture of chloroxylenol and terpineol acts as-
(1) analgesic
(2) antiseptic
(3) antipyretic
(4) antibiotic
Which of the following is an analgesic?
1. Penicillin
2. Streptomycin
3. Chloromycetin
4. Novalgin
Bithional is generally added to the soaps as an additive to function as a/an
1. softener
2. dryer
3. buffering agent
4. antiseptic