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কোন গ্রুপে pH - এর ক্রম সঠিক?

0.0001 M HC1> 0.001 M HC1> 0.01 M NaOH

N H_{4} C 1 (a q) > H_{2} O (1) > N a H C O_{3} (a q)

N a H C O_{3} (a q) > H_{2} O (1) > N H_{4} C 1 (a q)

N a C 1 (a q) > N a_{2} C O_{3} (a q) > H C I (a q)

0.1 M C a (O H)_{2} > 1.0 M H F > 1 M K O H

ANS : 3

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