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Vinay S R Grade:
        

A box contains 2 white balls 3 black balls and 4 pink balls the number of ways in which 3 balls can be drawn  from box so that at least 1 on them is black .... plz do it using multinomial theorem

6 years ago

Answers : (1)

rajan jha
49 Points
										 Arrange the bonds in order of increasing ionic character in the molecules:




LiF, K2O, N2, SO2 and ClF3




Sol. N2 < ClF3 < SO2 < K2O < LiF








Arrange the following in order of increasing ionic character:




C-H, F-H, Br-H, Na-I, K-F and Li-Cl



Sol. C-H < Br-H < F-H < Na-I < Li-Cl < K-F
6 years ago
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