If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the struct
1 answer:
Answer:
(C) bent 109
(2)
Explanation:
The number of bond pairs = 2
Number of lone pairs = 2
The general formula is -
According to VSEPR theory, the atoms will form a geometry in such a way that there is minimum repulsion and maximum stability.
The central atom has 2 bond pairs and 2 lone pairs. Hybridization is sp³. The geometry is bent shape which has an angle of approximately 105.5°. It original has angle of 109.5° but due to lone pair repulsion, it reduces.
Answer - (C) bent 109
Square pyramidal possibility:- (2)
The central atom has 5 bond pairs and 1 lone pair. Hybridization is sp³d. The geometry is square pyramidal in which the equatorial bonds has an angle of 120° and axial bond has an angle of 90°.
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Answer:
Explanation:Bond energy of H-H is 436.4 kJ/mole
Bond energy of C-H is 414 kJ/mol
Bond energy of C=C is 620 kJ/mol
Bond energy of C≡C is 835 kJ/mol
= {1B.E(C≡C)+2B.E(C-H) +1B.E(H-H)} - {1B.E(C=C)+4B.E(C-H)}