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Q113) By which of the following SO2 is formed ... [ BHU 1999]




SOLUTION

Cu + 2H2SO4 →CuSO4 + SO2 + H2O
Answer: (c)


Q114) Which of the following is not reducing agent? [ DEC 2000]




SOLUTION

CO2 can not be further oxidised hence it cannot act as reducing agent
Answer: (c)


Q115) Which of the following causes damage to the building containing calcium and responsible for cough and choking in human .. [ Manipal PMT 2001]



SOLUTION


Answer:(d)



Q116) The oxidation number of S in H2S2O8 is ... [ MP PMT 2002]



SOLUTION


Answer: (c)


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