Repeated use of which of the following fertilizers would increase the acidity of the soil?

  • A
    Urea
  • B
    Potassium nitrate
  • C
    Ammonium sulphate
  • D
    Superphosphate of lime

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Which of the following salts contains an anion that undergoes hydrolysis?

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Predict if the solutions of the following salts are neutral,acidic or basic:
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Which among the following salts turns red litmus blue in its aqueous solution?

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