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Question

দ্রবণে

N a^{+}

আয়ন শনাক্তকরণে নিচের কোনটি ব্যবহৃত হয়?

(N H_{4})_{2} C_{2} O_{4}

K_{2} H_{2} S B_{2} O_{7}

N a_{2} H_{2} S B_{2} O_{7}

A g N O_{3}

ANS : 2

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