Chromium compound widely used in the tanning of leather is:
A
Cr2O7
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B
Cr2O2Cl2
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C
Cr2O3
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D
K2SO4Cr2(SO4)324H2O
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Solution
The correct option is CK2SO4Cr2(SO4)324H2O Chromium(III) sulfate ([Cr(H2O)6]2(SO4)3) has long been regarded as the most efficient and effective tanning agent. So K2SO4Cr2(SO4)324H2O is most widely used as tanning agent.