Assertion . Bleaching powder is a mixed salt .
Reason . In the presence of `CoCl_(2)` , bleaching powder decompose to give `CaCl_(2)` and `O_(2)` .
A. If both assertion and reason are true, and reason is the true explanation of the assertion.
B. If both assertion and reason are true, but reason is not the true explanation of the assertion.
C. If assertion is true, but reason is false
D. If both assertion and reason are false.
Reason . In the presence of `CoCl_(2)` , bleaching powder decompose to give `CaCl_(2)` and `O_(2)` .
A. If both assertion and reason are true, and reason is the true explanation of the assertion.
B. If both assertion and reason are true, but reason is not the true explanation of the assertion.
C. If assertion is true, but reason is false
D. If both assertion and reason are false.
Correct Answer – b
Correct explanation . Bleaching powder is a mixed salt of `Ca(O Cl)_(2) , CaCl_(2)` and `Ca(OH)_(2) , CaCl_(2)` decomposes `Ca(O Cl)_(2)` to form `CaCl_(2)` and `O_(2)`.