1
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify the incorrect statement.

A
$$\mathrm{PEt}_3$$ and $$\mathrm{AsPh}_3$$ as ligands can form $$\mathrm{d} \pi-\mathrm{d} \pi$$ bond with transition metals
B
The $$\mathrm{N}-\mathrm{N}$$ single bond is as strong as the $$\mathrm{P}-\mathrm{P}$$ single bond
C
Nitrogen has unique ability to form $$p \pi-p \pi$$ multiple bonds with nitrogen, carbon and oxygen
D
Nitrogen cannot form $$\mathrm{d} \pi-\mathrm{p} \pi$$ bond as other heavier elements of its group
2
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List-I with List-II :

List - I
(Test/reagent)
List - II
(Radical identified)
(A) Lake Test (I) NO$$_3^-$$
(B) Nessler's Reagent (II) Fe$$^{3+}$$
(C) Potassium sulphocyanide (III) Al$$^{3+}$$
(D) Brown Ring Test (IV) NH$$_4^+$$

Choose the correct answer from the options given below :

A
A-IV, B-II, C-III, D-I
B
A-II, B-IV, C-III, D-I
C
A-II, B-III, C-IV, D-I
D
A-III, B-IV, C-II, D-I
3
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List-I with List-II:

List - I
Molecule
List - II
Bond enthalpy (kJ mol$$^{-1}$$)
(A) HCl (I) 435.8
(B) N$$_2$$ (II) 498
(C) H$$_2$$ (III) 946.0
(D) O$$_2$$ (IV) 431.0

Choose the correct answer from the options given below:

A
A-III, B-IV, C-I, D-II
B
A-IV, B-I, C-III, D-II
C
A-IV, B-III, C-II, D-I
D
A-IV, B-III, C-I, D-II
4
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

The standard cell potential of the following cell $$\mathrm{Zn}\left|\mathrm{Zn}^{2+}(\mathrm{aq})\right| \mathrm{Fe}^{2+}(\mathrm{aq}) \mid \mathrm{Fe}$$ is $$0.32 \mathrm{~V}$$. Calculate the standard Gibbs energy change for the reaction:

$$\mathrm{Zn}(\mathrm{s})+\mathrm{Fe}^{2+}(\mathrm{aq}) \rightarrow \mathrm{Zn}^{2+}(\mathrm{aq})+\mathrm{Fe}(\mathrm{s})$$

(Given : $$1 \mathrm{~F}=96487 \mathrm{C}$$)

A
$$-61.75 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
B
$$+5.006 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
C
$$-5.006 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
D
$$+61.75 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
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