Textile Engineering > GATE 2009 > Textile Chemical Processing
Consider the following statements:
P. Presence of iron and copper ions during bleaching with sodium chlorite is desirable.
Q. Sodium silicate is used as a stabilizer in bleaching of cotton with hydrogen peroxide.
R. Oil repellent finishes are based on fluorochemicals.
S. Sodium hydrosulphite is used as a reducing agent in vat printing.
Choose the correct set of statements from amongst the alternatives A, B, C and D.
P. Presence of iron and copper ions during bleaching with sodium chlorite is desirable.
Q. Sodium silicate is used as a stabilizer in bleaching of cotton with hydrogen peroxide.
R. Oil repellent finishes are based on fluorochemicals.
S. Sodium hydrosulphite is used as a reducing agent in vat printing.
Choose the correct set of statements from amongst the alternatives A, B, C and D.
Correct : d
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