On addition of one \( \mathrm{ml} \) solution of \( 10 \% \mathrm{NaCl} \) to 10 \( \mathrm{ml} ....

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Question On addition of one \( \mathrm{ml} \) solution of \( 10 \% \mathrm{NaCl} \) to 10 \( \mathrm{ml} \) red gold sol in the presence of \( 0.0025 \mathrm{~g} \) of starch, the coagulation is just prevented. The gold number of starch is
(A) 25
(B) 2.5
(C) 0.25
(D) 0.025📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live



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