Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: Change in colour of acidic solution of potassium dichromate by breath is used to test drunk drivers. Reason: Change in colour is due to the complexation of alcohol with potassium dichromate.A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but the reason is not the correct explanation of the assertion.
C) If assertion is true statement but reason is false.
D) If both assertion and reason are false.
Correct Answer: C
Solution :
Potassium dichromate react with alcohol and the reduction of potassium dichromate takes place and dichromate (orange red) change of \[C{{r}^{3+}}\] (green) \[C{{r}_{2}}O_{7}^{2-}+14{{H}^{+}}+6{{e}^{-}}\xrightarrow{{}}2C{{r}^{3+}}+7{{H}_{2}}O\] So, the reason is false.
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