Supriya Kumari

photography mai kon sa amal paya jaja hai

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Supriya Kumari, एक महीने पहले ago

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GK in Hindi (Samanya Gyan)

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Guest

Oxalic acid..used in photography..and hyposolution known as fixer sodium thiosulfate...and krypton is used to fill in the flash light sis

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Guest , 28 days ago

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Siddhu

oxalic acid

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Siddhu , 6 days ago

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