Question

Write IUPAC Name : [Cr(NO2)2(en)2]PO4​

Answer 1

Given the compound, [Pt(NH

3

)

4

(NO

2

)Cl]SO

4

.

Here, we know SO

4

has −2 charge.

So, the overall charge on Pt(NH

3

)

4

(NO

2

)Cl] is +2. Cl and NO

2

has −1 valency each.

Therefore, charge on Pt has to be +4 to balance the overall charge.

Therefore, the IUPAC name of [Pt(NH

3

)

4

(NO

2

)Cl]SO

4

is tetramminechloronitroplatinum (IV) sulphate.

Answer 2

Bis(ethylenediamine)dinitrochromium(II)phosphate is the IUPAC name for the substance.

• NO2 is Nitro , Charge= -1.en is ethylenediamine
• Charge =0.Charge on chromium is +2.

• Coordination compound names are given in alphabetical order.
• As a result, the compound's name is Bis(ethylenediamine)dinitrochromium(II)phosphate  
• Whether in a continuous chain or a ring, the longest chain of carbons joined by a single bond serves as the basis for IUPAC nomenclature.
• According to a particular set of priorities, all deviations, whether multiple bonds or atoms other than carbon and hydrogen, are denoted by prefixes or suffixes.
• A global standard for naming chemicals is to be established through the IUPAC system of nomenclature in order to improve communication.
• The system's objective is to assign each structure a distinct and clear name and to associate each name with a distinct and clear structure.

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