\(H_3 PO_4 \,\, ^{\underrightarrow{1}} H_4 P_2 O_7 \,\, ^{\underrightarrow{1}}HPO_3\)Indicate the temperatures 1and 2?(a) 1.300°C2.1000°C(b) 1.250°C2.900°C(c) 1.250°C2.500°C(d) 1.100°C2.1000°CThis question was addressed to me in final exam.Question is from Inorganic Chemical in chapter Inorganic Chemical Industries of Chemical Technology

\(H_3 PO_4 \,\, ^{\underrightarrow{1}} H_4 P_2 O_7 \,\, ^{\underrighta

1.	\(H_3 PO_4 \,\, ^{\underrightarrow{1}} H_4 P_2 O_7 \,\, ^{\underrightarrow{1}}HPO_3\)Indicate the temperatures 1and 2?(a) 1.300°C2.1000°C(b) 1.250°C2.900°C(c) 1.250°C2.500°C(d) 1.100°C2.1000°CThis question was addressed to me in final exam.Question is from Inorganic Chemical in chapter Inorganic Chemical Industries of Chemical Technology
Answer» Right ANSWER is (b) 1.250°C2.900°C Easy EXPLANATION: Ortho PHOSPHORIC acid on heating to 250°Cgives PYRO phosphoric acid, which on further heating to 900°C PRODUCES meta phosphoric acid.

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