As chief librarianof delhi public library,put up a notice informing members about the change in winter timing effective from 1st oct.2008 to 1st april 2009. the timing have been changed from7:00am to 9:00am(morning) 6:00pm to 8:00 pm (evening) to 8:00am to 10:00 am (morning) and 5:00pm to 7:00pm evening.
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provided with three test tubes. One of them contains distilled water and the other two have an acidic solution and a basic solution respectively. If you are given only red litmus paper, how will you identify the contents of each test tube? 6. HCI, HNO, C,H,OH
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