TS EAMCET · Chemistry · Chemical Bonding and Molecular Structure

Match the following :

The correct answer is

A (a)
B (b)
C (c)
D (d)

Verified Solution

Answer & Solution

Correct Answer

(A) (a)

Step-by-step Solution

Detailed explanation

Bond order Number of bonding electrons - Number of antibonding electrons…

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.

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Match the items of List -I to the items of List -II

	List-I		List-II
(A)	The number of ways of not selecting $(n - r)$ things from $n$ different things	(I)	$1 + n + {}^{n}C_{2} + \dots + {}^{n}C_{r}$
(B)	$(n - r + 1) \cdot {}^{n}C_{r - 1}$	(II)	$(r + 1) \cdot {}^{n}C_{r + 1}$
(C)	The number of ways of selecting atleast $(n - r)$ things from $n$ different things	(III)	$r ({}^{n}C_{r})$
(D)	$(n - r) ({}^{n - 1}C_{r - 1} + {}^{n - 1}C_{r})$	(IV)	$2^{n} - 1 - n - {}^{n}C_{2} - \dots - {}^{n}C_{r}$
		(V)	${}^{n}C_{n - r}$

The correct match is:

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A)	Tetrahedral	${NiCl}_{2} {Br}_{2}^{2 -}$
B)	Square planar	$Pt {({NH}_{3})}_{2} {Cl}_{2}$
C)	Octahedral	$Co {({NH}_{3})}_{3} {Cl}_{3}$
D)	Square planar	$Pd {({NH}_{3})}_{3} {Br}^{+}$
E)	Octahedral	$Co (en)_{3}^{3 +}$

Match the following : The correct answer is

Step-by-step Solution

Match the following :

The correct answer is