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S {O_{4}}^{2 -} এ ব ং P {O_{4}}^{3 -}

এর অনুবন্ধী এসিড হচ্ছে-

H_{2} S O_{4}, H_{2} P O_{4}

H S {O_{4}}^{-}, H P {O_{4}}^{-}

H S {O_{4}}^{-}, H_{2} P {O_{4}}^{-}

H_{2} S O_{4}, H_{3} P O_{4}

H_{2} S O_{4}, H P {O^{-}}_{4}

ANS : 2

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