Total words “PAINT”= 5 Number of vowels (A, I) = 2 But in these, we cannot change the order of vowels. Suppose the required ways be 'n' multiplied by 2! ways with 'n' must be given 5! => 2! × n = 5! => n = 60 ways
What process is used to create a protective oxide layer on aluminum?
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Potassium Permanganate is used for purifying drinking water, because it –
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Protons were discovered by
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