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The bond angles for BF_3 are, 90 degree 180 degree 120 degree 60 degree None The

ID: 1062797 • Letter: T

Question

The bond angles for BF_3 are, 90 degree 180 degree 120 degree 60 degree None The bond angles for SO_3 is 120 degree. What is the hybridization of S? sp^2 sp^3 sp sp^3 d None The bond angles, and hybrid orbitals in BeCl_2 are, 120 degree, and sp^2 180 degree, and sp 90 degree and 120 degree, and sp^3 d 109.5 degree, and sp^3 sp^2, and 90 degree Which one of the following molecules has a central atom that is sp^2 hybridized? HF BF_3 CH_4 H_2O NH_3 When a molecule or polyatomic ion has no unshared (lone) pairs of valence electrons on the central atom, the electronic geometry and the molecular geometry are different the same What is the hybridization of a carton atom involved in a double bond ? sp sp^2 sp^3 sp^3 d sp^3 d^2 How many sigma (sigma) bonds and how many pi (pi) bonds does the acetylene molecule, H - c = C - H, contain? 5 sigma and 1 pi 2 sigma and 3 pi 3 sigma and 1 pi 2 sigma and 2 pi 3 sigma and 2 pi How many sigma (sigma) bonds and how many pi (pi) bonds does the carbondioxide molecule, O=C=O, contain ? 5 sigma and 1 pi 2 sigma and 3 pi 3 sigma and 1 pi 2 sigma and 2 pi 3 sigma and 2 pi The repulsive forces that affect the molecular geometry in ammonia molecule NH_3 is, lone pair- lone pair lone pair - bonding pair bonding pair- bonding pair none of these

Explanation / Answer

22) C BF3 has trigonal structure so bond angle is 120 degree.

23) A For each Sulfur atom there is SP2 hybridization.

24) B BeCl2 is linear molecule so bond angle is 180 Degree and having SP hybridization.

25) B In BF3 molecule Boron has SP2 hybridization.

26) B When there is no lone pairs of valence electrons molecular geometry and electronic geometry are same.

27) B As Carbon atom involved in double bond there is SP2 hybridization.

28) E Acetylene molecule (H-C = C-H) contains 3 sigma and 2 pi bonds.

29) D Carbon dioxide molecule (O = C =O) contains 2 sigma and 2 pi bonds.

30) B The repulsive forces that affect the molecular geometry in ammonia (NH3) is due to lone pair- bonding pair.

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