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QUESTION 7 A sigma bond occurs between atoms when the orbitals from each atom overlap along the line between the nuclei of th

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Answer #1

Q.7 .

A sigma bond is formed when orbitals are overlapped along the axis which means a line connected to two bonded nuclei .

Hence , first statement is correct.

Q.8.

Charge of phosphate ion is -3.

As there are two phosphate ion in the molecule , total negative charge = -6.

As charge of compound is neutral

Hence, charge of Cr = +6.

Q.9.

Carbon and Chlorine both are nonmetals with different electronegativity , hence bond between C atom and Cl atom is polar covalent .

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