325209
Benzaldehyde condenses with N,N-dimethylaniline in the presence of anhydrous \(\mathrm{ZnCl}_{2}\) to give
1 Michler's ketone
2 azo dye
3 malachite green
4 buffer yellow
Explanation:
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325210
Which one is disperse dye?
1 Congo red
2 Alizarin
3 Celliton
4 None of these
Explanation:
Celliton is a disperse dye. Disperse dye are usually applied in the form of dispersion of finely divided dye in a soap solution in the presence of phenol, cresol and benzoic acid etc. They are mainly used to dye dacron, nylon, synthetic fibre.
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325211
Azo dye is prepared by the coupling of phenol and
1 diazonium chloride
2 o-nitroaniline
3 benzoic acid
4 chlorobenzene
Explanation:
Azo dye is prepared by the coupling of phenol and diazonium chloride.
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325212
Which of the following is an example of natural edible colour?
325209
Benzaldehyde condenses with N,N-dimethylaniline in the presence of anhydrous \(\mathrm{ZnCl}_{2}\) to give
1 Michler's ketone
2 azo dye
3 malachite green
4 buffer yellow
Explanation:
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325210
Which one is disperse dye?
1 Congo red
2 Alizarin
3 Celliton
4 None of these
Explanation:
Celliton is a disperse dye. Disperse dye are usually applied in the form of dispersion of finely divided dye in a soap solution in the presence of phenol, cresol and benzoic acid etc. They are mainly used to dye dacron, nylon, synthetic fibre.
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325211
Azo dye is prepared by the coupling of phenol and
1 diazonium chloride
2 o-nitroaniline
3 benzoic acid
4 chlorobenzene
Explanation:
Azo dye is prepared by the coupling of phenol and diazonium chloride.
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325212
Which of the following is an example of natural edible colour?
325209
Benzaldehyde condenses with N,N-dimethylaniline in the presence of anhydrous \(\mathrm{ZnCl}_{2}\) to give
1 Michler's ketone
2 azo dye
3 malachite green
4 buffer yellow
Explanation:
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325210
Which one is disperse dye?
1 Congo red
2 Alizarin
3 Celliton
4 None of these
Explanation:
Celliton is a disperse dye. Disperse dye are usually applied in the form of dispersion of finely divided dye in a soap solution in the presence of phenol, cresol and benzoic acid etc. They are mainly used to dye dacron, nylon, synthetic fibre.
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325211
Azo dye is prepared by the coupling of phenol and
1 diazonium chloride
2 o-nitroaniline
3 benzoic acid
4 chlorobenzene
Explanation:
Azo dye is prepared by the coupling of phenol and diazonium chloride.
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325212
Which of the following is an example of natural edible colour?
325209
Benzaldehyde condenses with N,N-dimethylaniline in the presence of anhydrous \(\mathrm{ZnCl}_{2}\) to give
1 Michler's ketone
2 azo dye
3 malachite green
4 buffer yellow
Explanation:
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325210
Which one is disperse dye?
1 Congo red
2 Alizarin
3 Celliton
4 None of these
Explanation:
Celliton is a disperse dye. Disperse dye are usually applied in the form of dispersion of finely divided dye in a soap solution in the presence of phenol, cresol and benzoic acid etc. They are mainly used to dye dacron, nylon, synthetic fibre.
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325211
Azo dye is prepared by the coupling of phenol and
1 diazonium chloride
2 o-nitroaniline
3 benzoic acid
4 chlorobenzene
Explanation:
Azo dye is prepared by the coupling of phenol and diazonium chloride.
CHXII15: CHEMISTRY IN EVERYDAY LIFE
325212
Which of the following is an example of natural edible colour?
