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Aishwarya chandra

QUERY 20 hours ago

dpp1
64. Which of the statements is not true ? (1) K2Cr2O7 solution in acidic medium is orange (2) K2Cr2O7 solution becomes yellow on increasing the pH beyond 7 (3) On passing H2S through acidified K2Cr2O7 solution, a milky colour is observed (4) Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis. (in this ques ans is given is 4 but acc to web 3 is also wrong as it gives green colour rather milky) plz clear this doubt.
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Amita Singh

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Shreya Raj

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Physics
Ans 2
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Pragya

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Q 71 sir ye first and second dono hona chahiye na
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Sir please explain structure of s2o3
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Rk mahato

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iska graph kaise aay asir
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