The P Block Elements - Result Question 80

####83. HI can be prepared by all the following methods, except

[1994]

(a) PI3+H2O

(b) KI+H2SO4

(c) H2+I2→Pt

(d) I2+H2S

Show Answer

Solution:

  1. (b) HI cannot be prepared by heating iodides with concentrated H2SO4. The reaction between Misplaced & is as follows:

8KI+5H2SO4⟶4K2SO4+4I2+4H2O+H2S

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