TS EAMCET · Chemistry · Coordination Compounds

The oxidation number of central metal in $[Pt {({NH}_{3})}_{2} Cl ({NO}_{2})]$ and ${[{CoCl}_{2} (en)_{2}]}^{\oplus},$ respectively, are

A $+ 2; + 1$
B $+ 2; + 2$
C $+ 2; + 3$
D $+ 3; + 2$

Verified Solution

Answer & Solution

Correct Answer

(C) $+ 2; + 3$

Step-by-step Solution

Detailed explanation

PtNH32ClNO2 :- Let the oxidation number of platinum = x Ammonia is a neutral ligand and chloride is having the -1 oxidation number and nitrate has the -1 oxidation number. x+2×0+-1+-1=0x-2=0x=+2 Hence, the oxidation state of platinum is +2. CoCl2(en)2⊕:- Let the…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match the reactants in List-I with the products in List-II.

	List - I		List - II
(a)	$H_{2} O + H_{2} S$	(i)	$(H_{3} O^{+}, {HS}^{-})$
(b)	$H_{2} O + N^{3 -}$	(ii)	$({NH}_{3}, {OH}^{-})$
(c)	$H_{2} O + {SiCl}_{4}$	(iii)	$({OH}^{-}, H_{3} S^{+})$
(d)	$H_{2} O + F_{2}$	(iv)	$({SiO}_{2}, HCl)$
		(v)	$({SiO}_{4}^{4}, {Cl}_{2})$
		(vi)	$(O_{2}, F^{-})$
		(vii)	$(HF, {OH}^{-})$
		(viii)	$({OH}^{-}, {HN}_{3})$

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The oxidation number of central metal in PtNH32ClNO2 and CoCl2(en)2⊕, respectively, are

Step-by-step Solution

The oxidation number of central metal in $[Pt {({NH}_{3})}_{2} Cl ({NO}_{2})]$ and ${[{CoCl}_{2} (en)_{2}]}^{\oplus},$ respectively, are