Identify the wrong statement. (1) Among the constituents of air, O2, H2O, CO2, ozone, nitrogen will not produce green house effect(2) Hg0, Hg +2, Cu 0, Cu +2, Cd + are poisonous to living system. (3) Flexible rubber is hardened by cross polymerisation with ZnO. (4) TiCl4 with (C2 H5 )3 Al is the Ziegler-Natta catalyst used in the polymerisation of olefin.

Identify the wrong statement. (1) Among the constituents of air, O2,

1.	Identify the wrong statement. (1) Among the constituents of air, O2, H2O, CO2, ozone, nitrogen will not produce green house effect(2) Hg0, Hg +2, Cu 0, Cu +2, Cd + are poisonous to living system. (3) Flexible rubber is hardened by cross polymerisation with ZnO. (4) TiCl4 with (C2 H5 )3 Al is the Ziegler-Natta catalyst used in the polymerisation of olefin.
Answer» The Correct option is (3) Flexible rubber is hardened by cross polymerisation with ZnO.

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