SSC MCQ Question Ans. Acid-Base Balance
SSC MCQ Question Ans. Acid-Base Balance. Lead is extracted from the acidic residue of rejected batteries of vehicles /IPS/ solar panel in 50 furnaces on the beach of river Jamuna at Bera upozila of Pabna district. People are extremely annoyed at the toxic smoke and bad odor from the furnaces. Crops are not growing in the lands near the furnaces. Cattles are dying by eating grass. Poor labourers bring out the toxic materials by breaking batteries with bare hands. Their hands are infected.
There are lead (Pb,) lead oxide (PbO2) and dilute sulphuric acid (H2SO4) in the two chambers inside the plastic cover of the battery. When heat is applied to the residue and the ash of the battery sulfuric acid decomposes and produces sulfur trioxide (SO3) and sulfur dioxide (SO2). Mixing of these two gases creates dense foggy like situation.
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