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Q193) One of the products formed due to the reaction between KMnO4 and HCl is ..[DEC 1994]




SOLUTION

Cl2 gas evolves
Answer: (c)


Q184) Concentration of silver ore is based on its solubility in ..[EAMCET 1994]




SOLUTION

Silver forms complex with KCN
Answer: (c)


Q195) Unmber of unpaired electrons in Zn2+ is ..[mPPMT 1993]



SOLUTION

Zn = 3d10 4s2
Zn2+ = 3d10
Answer:(d)



Q196) Transition metals are often paramagnetic owing to ..[ {Bihar CEE 1992]



SOLUTION


Answer: (c)


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