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Q169) When SO2 is passed through acidified K2Cr2O7 solution [ JIPMER 1994]




SOLUTION


Answer: (d)


Q170) The most durable metal plating on iron to protect against corrosion is [ CBSE PMT 1994]




SOLUTION


Answer: (d)


Q171) Nessler's reacgent is ... [ MP PMT 1993]



SOLUTION


Answer:(b)



Q172) Automobile engine blocks are mage of ..[MP PMT 1992]



SOLUTION


Answer: (b)


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