CUET Level II NEET Mock Test-2 (Chemistry 2024-2025)

A reagent used for identifying nickel ion is:

• Potassium ferrocyanide

• Phenolphthalein

• Dimethyl glyoxime

• EDTA

Which of the following is not an organo metallic compound :

• (C2H5)2Zn

• CH3B(OCH3)2

• B(OCH3)3

• Ni(CO)4

Which one of the following is a π bonded OMC ?

• Wilkinson's catalyst

• Tetraethyl lead

• Zeisel's salt

• Grignard's reagent

Compounds which contain direct metal carbon bonds are called :

• Organic compound

• Complex compound

• Metal carbides

• Organo metallic compounds.

Which of the following statement is/are wrong:-

(a) Al4C3 is an organometallic compound

(b) Metal carbonyls are organometallic compounds

(c) TEL is π bonded organometallic compound

(d) Frankland reagent is σ-bonded organometallic compound

The answer is:

• c and d

• a and c

• a and b

• b and d

CrCl3.6H2O show 3 different coloured compounds due to:

• Ionisation isomerism

• Coordination isomerism

• Optical isomerism

• Hydrate isomerism

Which of the following represents incorrect match?

• [Co(NH3)5(NO2)](NO3)2 : Linkage isomerism

• [Pt (NH3)(H2O)Cl2] : Geometrical isomerism

• K[Cr(H2O)2(C2O4)2] : Geometrical and optical

• [Cr(H2O)5Cl]Cl2H2O : Hydrate and linkage isomerism

Complex [Co(NH3)3 (NO2)3] show which isomerism :-

• Ionisation and linkage

• Linkage and geometrical

• Geometrical and ligand

• Coordination and linkage

The pair of molecules that exhibit geometrical isomerism are

• [Cr(NH3)4Cl2]+ and [Co(NH3)3Cl3]

• [Cr(NH3)5Cl]2+ and [Co(NH3)5Cl]2+

• [Cr(NH3)6]

  3+ and [Co(NH3)6]

  3+

• All of the above show geometrical isomerism

Which of the following complex does not show geometrical isomerism?

• [Co(NH3)4Cl2]+

• [Co(NH3)3(NO2)3]

• [Cr(en)3]

  3+

• [Pt(gly)2]