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Which of the following is a metal salt of citric acid used to prevent blood clot?

(a) Trimagnesium citrate

(b) Trisodium citrate

(c) Dimagnesium citrate

(d) Bisodium citrate

This question was posed to me in a national level competition.

The above asked question is from Aerobic Bioprocesses topic in chapter Mixed Cultures & Traditional Industrial Bioprocesses of Bioprocess Engineering

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Right choice is (b) Trisodium citrate

The explanation: Metal salts of citric acid such as trisodium citrate are used to prevent blood clotting by complexing calcium. Trisodium citrate can be used in detergents and cleaners as a cleaning agent instead of phosphates.

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