Question
Which of the following indicator produces a pink colour
in an alkaline solution?Solution
Phenolphthalein turns pink when exposed to substances above a pH of 8.2. This colour change is a result of ionization, which alters the shape and charge of phenolphthalein molecules. This causes it to block the blue light spectrum when exposed to alkaline substances, producing a pink to purple hue.
Which of the following code for âmannerâ?
Which of the following is the code of âtoâ?
How many such pair(s) of letters are in the word âTRANSPARENTâ which has as many letters between them (both forward and backward) as in the English ...
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What is the code for âLiveâ in the given code language?
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What is the code for the word âYourselfâ?
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