The IUPAC name for the complex [Co(NO₂)(NH₃)₅]Cl₂ is

• nitrito-N-pentaamminecobalt (III) chloride

• nitrito-N-pentaamminecobalt (II) chloride

• pentaammine nitrito-N-cobalt (II) chloride

• pentaammine nitrito-N-cobalt (II) chloride

Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of 2-fluoroethanol is

• Eclipse, Gauche, Anti

• Gauche, Eclipse, Anti

• Eclipse, Anti, Gauche

• Eclipse, Anti, Gauche

How many EDTA (ethylenediaminetetraacetic acid) molecules are required to make an octahedral complex with a Ca²⁺ ion?

• 6

• 3

• 1

• 1

The oxidation state of Cr in [Cr(NH₃)₄Cl₂]⁺ is

• +3

• +1

• 0

• 0

The IUPAC name of the coordination compound K₃[Fe(CN)₆] is

• Potassium hexacyanoferrate (II)

• Potassium hexacyanoferrate (III)

• Potassium hexacyanoiron (II)

• Potassium hexacyanoiron (II)

Which of the following compounds shows optical isomerism?

• [Cu(NH₃)₄]⁺²

• [ZnCl₄]^-2

• [Cr(C₂O₄)₃]^-3

• [Cr(C₂O₄)₃]^-3

Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?

• [Cr(CN)₆]^-3

• [Mn(CN)₆]^-3

• [Fe(CN)₆]^-3

• [Fe(CN)₆]^-3

Which types of isomerism is shown by 2,3-dichlorobutane?

• Diastereo

• Optical

• Geometric

• Geometric

369.

The value of the ‘spin only’ magnetic moment for one of the following configurations is 2.84 BM. The correct one is

• d⁴ (in strong ligand filed)

• d⁴ (in weak ligand field)

• d³ (in weak as well as in strong fields)

• d³ (in weak as well as in strong fields)

For which of the following parameters the structural isomers C₂H₅OH and CH₃OCH₃ would be expected to have the same values?

• Heat of vaporization

• Gaseous densities at the same temperature and pressure

• Boiling points

• Boiling points