Chemistry-
General
Easy
Question
A sodium cation has a different number of electrons from
- (a)
- (c)
The correct answer is: (c)
electron ; 
4 electro
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The 120 permutations of MAHES are arranged in dictionary order, as if each were an ordinary five-letter word. The last letter of the 86th word in the list is
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Let y be an element of the set A = {1, 2, 3, 5, 6, 10, 15, 30} and x1, x2, x3 be integers such that x1 x2 x3 = y, then the number of positive integral solutions of x1 x2 x3 = y is
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How many 6 digit number can be formed using the digit 1, 2, 3, 4, 5 and 6 that have at least two of the digits the same:
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