If the atomic number of element X is 7, the best electron dot symbol for the element is _________.
The number of 4 letter words that can be formed using the letters of with an vowel when repetitions are allowed is
The number of 5 letter words that can be formed using the letters of the word DEL.HI which begin,and end with an vowel when repetitions are allowed is:
The number of 4 letter words that can be formed by using the letters of the word DEGREE is
The number of 5 -letter words that can be formed by using the letters of the word SARANAM is
the number of words that can be formed using any number of letters of the word KANPUR is
BEIITIANS-BASICS OF CHEMISTRY -IIT JEE WORKSHEET (INTEGER TYPE)