A : Na_(2) S_(2) O_3 on reaction with l_(2) gives Na_(2) S_(4) O_(6) . – InterviewSolution

1.	A : Na_(2) S_(2) O_3 on reaction with l_(2) gives Na_(2) S_(4) O_(6) . R : This reaction involves colour and electronic change both .
Answer» If both ASSERTION & Reason are TRUE and the reason is the correct explanation of the assertion , then mark (1) If both Assertion & Reason are true but the reason is not the correct explanation of the assertion , then mark (2) If Assertion is true statement but Reason is false , then mark (3) If both Assertion and Reason are false statements , then mark (4) ANSWER :B

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