Organic Chemistry (704)

50 Mcqs Questions For a Prepration Of Online Exam...

                                    👇

1...The Catalyst Used in The Conversion of Ethylene to Acetaldehyde Using Wacker Process?

👉Ticl4 in the presence of Al(c2H5)3

👉Pd(cl)4]-2 ☑️

👉HCo(co)4

👉v2O5

2...In Wilkinson’s Catalyst Which Catalyst Is Used?

👉HCo(co)4

👉v2o5

👉co2(co)8

👉RhCl(pph3)3 ☑️

3...In Fischer carbene which one is correct?

👉it behaves as 2e donor ligand

👉all of these☑️

👉generally, in low oxi. state

👉comparatively more stable

4...fischer carbene are?

👉nucleophilic

👉both A & B

👉none

👉electrophilic ☑️

5...wilkinson’s catalyst is used for

👉hydrogenation catalyst ☑️

👉the Wacker process

👉Hydroformylation of alkene

👉Rappe catalyst

6...Incorrect the following statement ?

👉all the pt-cl B.L in zeise’s salt are equal ☑️

👉zeise’s salt is diamagnetic

👉the oxi.state of pt in zeise’s salt is +2

👉C=C B.L is 1.375 A°

7...the correct statement is ?

👉in singlet carbene the bond angle is 100

👉both carbene is sp2 hybrided carbonyl atom

👉both A & B ☑️

👉in triplet carbene has three unpaired elctron 

8...Wilkinson’s Catalyst Are Hydrogenation Of ?

👉C=O

👉Alkenes ☑️

👉C≡N

👉No2

9...In Oxidative Addition Reaction the Coordination Number Is Increased By?

👉6-unit

👉3-unit

👉2-unit☑️

👉0-unit

10...The Catalyst Used For Polymerisation Of Olefins Is Generated From?

👉Ru(pph2)cl

👉Co2(co)9 and Na

👉Pdcl2 and CuCl 

👉Ticl4 and Alet3 ☑️

11...In Heterogenous Reaction Which Catalyst Is Used ?

👉Cu

👉Pd

👉Zn

👉Pt ☑️

12...the catalyst of [HCo(co)4] is used for

👉hydrogenation catalyst

👉the Wacker process

👉Rappe catalyst

👉Hydroformylation of alkene ☑️

13...In schrock carbene which one is false?

👉it has electron efficient species ☑️

👉none of these

👉less stable species

👉it has high oxi state

14...In singlet carbene no. of l.P. IS?

👉three

👉two

👉one

👉zero ☑️

15...In Heterogenous Reaction Which Type of Phase will be used?

👉none

👉Single

👉different ☑️

👉double

16...An Intermediate Formed During The Hydroformylation Of Olefins Using Co2(Co)8 As Catalyst Is ?

👉HCo(Co)8

👉HCo(Co)4☑️

👉H2Co(C0)4

👉H4Co(Co)3

17...schrock carbenes are?

👉none

👉triplet ☑️

👉singlet

👉doublet

18...In The Oxo-Process Which Catalyst Is Used ?

👉A & B ☑️

👉Rh

👉None

👉Co

19...Regarding the Catalytic Cycle of Hydrogenation of Alkenes Involving RhCl(pph3) As the Catalyst the Correct Statement Is?

👉16 and 18 electron Rh complex are involved ☑️

👉14- and 16 and 18 electron Rh complex are involved

👉Only 18-electron Rh complex is involved

👉14 and 16 electron Rh complex are involved

20...in triplet carbene no. of L.P. is?

👉one

👉two ☑️

👉three

👉none

21...Which of The Following Is Not Suitable as Catalyst for Hydroformylation?

👉HRh(co)(pph3)3

👉H2Rh(pph3)2cl ☑️

👉HCo(C0)4

👉HCo(Co)4PBu3

22...in The Last Step Of Walker Process The oxin State Of Pd Is

👉two

👉zero ☑️

👉three

👉One

23...in zeise’s salt pt ion present in

👉O.h.

👉square planner ☑️

👉T.d.

👉T.B.

24...Co + ½ H2 +4CO ------- ?

👉[Co(CO)4 ]-

👉[HCo(CO)3]-2

👉none

👉HCo(CO)4 ☑️

25...Reaction Of [CP2TaMe2]I ?

👉CP2MeTa = CH2 ☑️

👉[CP2Ta(Me)(OMe)]I

👉[CP2Ta(OMe)2]I

👉CP2Ta(OMe = CH2

26...the correct order of migratory aptitude in T.S hydride complex?

👉aryl > H > alkyl

👉alkyl > aryl > H

👉none

👉H > aryl > alkyl ☑️

27...Wilkinson Catalyst Is Used For ?

👉Polymerisation

👉Hydrogenation ☑️

👉Metathesis reaction

👉Epoxidation

28...Hydroformylation Reaction Are Catalysed By ?

👉co2(co)8☑️

👉Ni(co)4

👉Ticl4 and Alet3

👉cacl2 and NaOet

29...In Homogenous Catalyst Which Type Of Phase Is Used ?

👉single ☑️

👉double

👉different

👉none

30...In M = C bond in fischer carbene following the correct statement ?

👉M = C bond is week

👉none

👉low rotational barrier

👉both A & B ☑️

31...In Ziegler Natta Polymerisation Ethene Converted Into ?

👉EAA

👉Ethanol

👉polythene ☑️

👉ethyl

32...in Wacker Process Ethene Converted Into ?

👉EAA

👉ethyl

👉Ethanol ☑️

👉none of these

33...The Reaction Of H2 With Wilkinson Catalyst Result In ?

👉Cis addition of H2 and metal oxin state change of -2

👉Trans addition of H2 and metal oxin state change of +2 

👉cis addition of H2 and metal oxin state change of +2 ☑️

👉Trans addition of H2 and metal oxin state change of -2

34...the Correct Statement Is ?

👉in schrock carbene substituent is E.R.G.

👉zeise’s salt is 16 e species

👉All of these ☑️

👉pt is dsp2 hybridised in zeies’s salt

35...In Two Oxo Process The Product Will Be Follow The ?

👉None of above

👉Markownikoff Rule

👉anti-markownikoff rule ☑️

👉Hoffmann rule

36...The catalyst [pdcl4]-2 is Used For

👉the Wacker process ☑️

👉Rappe catalyst

👉hydrogenation catalyst

👉Hydroformylation of alkene

37...in ficher carbenoid the spectator ligand are ?

👉π donating

👉none

👉σ donor

👉π acceptor ☑️

38...In Hydroformylation Reaction Using Rh(pph3)3(Co)(CH) As the Catalyst, Addition of Excess pph3 Would?

👉No influence of the rate of reaction

👉Increase the rate of reaction

👉decrease the rate of reaction

👉stop the reaction

39...the M-H stretching frequency lies in?

👉2800

👉1800 - 2000

👉1600 - 2300 ☑️

👉3300

40...The Catalyst Used for The Oxidation of Ethylene to Acetaldehyde Is?

👉co2(co)8 and H2 ☑️

👉Pdcl2 and CuCl

👉Ru(pph3)Cl

👉Ticl4 and Alet3

41...Wilkinson’s Catalyst

👉It does not obey the 18-electrone rule ☑️

👉Is CoOrdinatively Saturated

👉It is Used for oxidation of alcohols

👉Is an Ir complex used in preparation of important pharmaceutical product

42...In Ziegler Natta Catalysis the Commonly Used Catalyst System Is?

👉Ticl4, Al(C2H5)3 ☑️

👉Ticl4, BF3

👉(n5 -cp)2Ticl2, Al(oet)3

👉Vo(acac)2, Al2(CH3)6

43... In The Oxo Process The R.D.S Step Is ?

👉reductive elimination

👉Insertion of alkene☑️

👉Remove of pph3 ligand

👉migration insertion

44...Mn2(CO)10 + H2 ----------- ?

👉[Mn2(CO)9]-2

👉H2Mn2(CO)9

👉None

👉2HMn(CO)5 ☑️

45...Ticl4 + Alet3 --------> A +B

👉TiCl2et2 , aletCl2

👉Tiet3 , Alcl4

👉TiClet3, AletCl3

👉Ticl3et , Alet2Cl☑️

46...The Homogenous Catalyst That Is Used in The Hydroformylation Or Hydro carbonylation is based on?

👉Co☑️

👉Ti

👉Cr

👉V

47...schrock carbene are ?

👉both A & B

👉electrophilic

👉nucleophilic ☑️

👉none

48...In zeise’s salt the hybridisation of ethylene carbon atom ?

👉SP2 ☑️

👉SP

👉SP3

👉None

49...In The Hydrogenation Of Alkene Which Catalyst Is Used ?

👉IrH(co)(pph3)3

👉CoH(co)(pph3)3

👉Rhcl(pph3)3 ☑️

👉All of these

50...Fischer carbene are?

👉singlet ☑️

👉none

👉doublet

👉triplet