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কোনটি লুকাস বিকারক ?

গাঢ়

H C 1 + Z n C 1_{2}

গাঢ়

H_{2} S O_{4} + Z n C 1_{2}

H_{2} O + Z n C 1_{2}

গাঢ়

H a O H + Z n C 1_{2}

গাঢ়

K O H + Z n C 1_{2}

ANS : 1

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