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प्रश्न
Colourless fluorescent dyes which turn pale fabrics white making them look brighter are called ______.
पर्याय
Bleach
Blue
Stiffening agents
Optical brighteners
MCQ
रिकाम्या जागा भरा
उत्तर
Colourless fluorescent dyes which turn pale fabrics white making them look brighter are called optical brighteners.
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Laundering Specific Fabrics
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