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Mg2C3 reacts with water forming propyne gas. C3^4- ions has

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Mg2C3 reacts with water forming propyne gas. C34- ions has

(a) two sigma and two pi bonds

(b) three sigma and one pi bond

(c) two sigma and one pi bond

(d) two sigma and three pi bonds

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Correct answer: (a) two sigma and two pi bonds

Explanation:

The structure of C34- ions is C-2 = C = C-2

i.e, 2σ 2π bonds.

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