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Select the correct statements.

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2nd period element can't form more than four covalent bonds

All oxyacids of 'S' has basiclty two generally

Hybrid orbitals of diamond have more s-character than the hybrid orbitals of graphite

Number of covalent bonds formed by a single. phosphorus is more in black phosphorus than the white phosphorus

answer is A.

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Detailed Solution

(a) 2nd period has one's' and three 'p' orbitals.

(b) An oxyacid is an acid that consists of hydrogen, oxygen, and a third element.

hence, option (c, d) are not correct .

(d) Covalency of Pin any allotrope = 4

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