Identify the correct statements from the following : a) Change in hybridisation affects the electronegativity of carbon b) The p orbitals in ethene are mutually parallel c) The number of bonds in propyne is 6 d) Electromeric effect is a permanent effect

Step-by-step solution

Statements a, b, and c are correct. - a) Change in hybridization affects electronegativity. Carbon's electronegativity increases with the percentage of s-character in its hybridization ( (s p>s p^2>s p^3 ) ). - b) The p orbitals in ethene are parallel. The two unhybridized p-orbitals on the (s p^2 ) hybridized carbon atoms are parallel to each other, allowing for side-by-side overlap to form the pi bond. - c) Propyne has 6 sigma bonds. The structure ( (C H₃-C C H )) contains three ( C - H ) bonds, one ( C - C ) sin