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The pH scale measures the acidity or alkalinity of aqueous solutions. When a solution turns blue litmus paper red, it indicates acidic properties. Acidic solutions always have a pH value less than 7, with stronger acids having lower values on the scale.
At what time between 8 and 11 o’clock will the hands of a watch be together?
Find the angle between the hour and minute hand of the clock when the time is 3:25 AM?
At what time between 5 AM and 6 AM will the hour and minutes hands of a clock coincide with each other?
What is the reflex angle between the hands of a clock at 15 minutes past 5?
What will be the angle formed between the hour hand and minute hand of a clock at 9:23 pm, when take in clockwise direction from the minute hand?
