Given the values for H(2, 1) and F (4.0), calculate the electronegativity differ

Question

Given the values for H(2, 1) and F (4.0), calculate the electronegativity difference in a hydrogen fluoride bond, HF. -1.9 -6.1 1.9 6.1 none of the above Section: 12.6 Polar Covalent Bonds What is the electron pair geometry for a methane molecule, cH_4? Bent linear tetrahedral trigonal pyramidal none of the above Section: 12.10 Shapes of Molecules What is the core notation for the electron configuration of a sulphide ion? [Ne] [Ne] 3s^2 3p^2 [Ne] 3s^2 3p64 [Ar] none of the above Section: General Exercises

Explanation / Answer

39

electro negitivity should be always +ve

so difference will be 4.0-2.1 = 1.9

option c is correct answer

40

in methane molecule central metal atom is C which is in SP3 hybridisation

so answer is tetrahedrol

option C is correct answer

41

sulfide means S2-

atomic number of S is 16 S2- means 16+2 = 18 = [Ar]

option D is correct answer

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