The catalyst used in the manufacture of polyethylene (A) `TiCl_4` / `Al(CH_3)_3` (B) `PdCl_2` (C) Ni (D) Cu/Ni alloy

Which of the following is used as a catalyst in the manufacture of toluene from benzene with CH_(3)CL ?

The correct order of the calculated spin - only magnetic moments of complexes (A) to (D) is : (A) Ni(CO)_(4) (B) [Ni(H_(2)O)_(6)]Cl_(2) (C) Na_(2)[Ni(CN)_(4)] (D) PdCl_(2)(PPh_(3))_(2)

Platinised asbestos is used as a catalyst in the manufacture of H_(2)SO_(4) .It is an example of :

In the contact process of manufacturing of H_(2) SO_(4) the catalyst used is

Match the catalysts to the correct processes : {:("Catalyst", "Process"),((A)" "TiCl_(3), (i)" Wacker process"),((B)" "PdCl_(2), (ii) " Ziegler - Natta polymerization"),((C)" "CuCl_(2), (iii) " Contact process"),((D)" "V_(2)O_(5), (iv) " Deacon's process"):}

Write the name, the structure and the magnetic behaviour of each one of the following complexes : (i) [Pt(NH_(3))_(2)Cl(NO_(2))] (ii) [Co(NH_(3))_(4)Cl_(2)]Cl (iii) Ni(CO)_(4)" " (Al nos, Co = 27 , Ni = 28, Pt = 78 )

Which of the following salts is the most basic in aqueous solution? (a) Al(CN)_3 (b) CH_3COOK (c) FeCl_3 (d) Pb(CH_3COO)_2

The water -soluble complex among the following is (a) [Ni(HDMG)_(2)] (b) [Co(NH_(3))_(3)CI_(3)] (c ) Ni(CO)_(4) [Ni(HDMG)_(2)]CI_(2) .

Using the curved-arrow notation, show the formation of reactive intermediates when the following convalent bonds undergo heterolytic cleavage : (a) CH_3 - S - CH_3 (b) CH_3 - CN ( c) CH_3 - Cu .

Which of the following complexes are not correctly matched with the hybridisation of their central metal ion ? (a) [Ni(CO)_4] , sp^(3) (b) [Ni(CN)_4]^(2-) , sp^(3) (c ) [CoF_6]^(3-) , d^(2)sp^(3) (d) [Fe(CN)_6]^(3-) , sp^(3)d^(2) Select the correct option :