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

Which of the following pairs of ions will have same spin only magnetic moment values within the pair?

A. $$\mathrm{Zn}^{2+}, \mathrm{Ti}^{2+}$$

B. $$\mathrm{Cr}^{2+}, \mathrm{Fe}^{2+}$$

C. $$\mathrm{Ti}^{3+}, \mathrm{Cu}^{2+}$$

D. $$\mathrm{V}^{2+}, \mathrm{Cu}^{+}$$

Choose the correct answer from the options given below :

A
C and D only
B
A and D only
C
A and B only
D
B and C only
2
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

At a given temperature and pressure, the equilibrium constant values for the equilibria are given below:

$$\begin{aligned} & 3 \mathrm{~A}_2+\mathrm{B}_2 \rightleftharpoons 2 \mathrm{~A}_3 \mathrm{~B}, \mathrm{~K}_1 \\ & \mathrm{~A}_3 \mathrm{~B} \rightleftharpoons \frac{3}{2} \mathrm{~A}_2+\frac{1}{2} \mathrm{~B}_2, \mathrm{~K}_2 \end{aligned}$$

The relation between $$\mathrm{K}_1$$ and $$\mathrm{K}_2$$ is :

A
$$\mathrm{K}_1^2=2 \mathrm{~K}_2$$
B
$$\mathrm{K}_2=\frac{\mathrm{K}_1}{2}$$
C
$$\mathrm{K}_1=\frac{1}{\sqrt{\mathrm{K}_2}}$$
D
$$\mathrm{K}_2=\frac{1}{\sqrt{\mathrm{K}_1}}$$
3
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

Arrange the following compounds in increasing order of their solubilities in chloroform: $$\mathrm{NaCl}, \mathrm{CH}_3 \mathrm{OH}$$, cyclohexane, $$\mathrm{CH}_3 \mathrm{CN}$$

A
$$\mathrm{NaCl}<\mathrm{CH}_3 \mathrm{CN}<\mathrm{CH}_3 \mathrm{OH}<$$ Cyclohexane
B
$$\mathrm{CH}_3 \mathrm{OH}<\mathrm{CH}_3 \mathrm{CN}<\mathrm{NaCl}<$$ Cyclohexane
C
$$\mathrm{NaCl}<\mathrm{CH}_3 \mathrm{OH}<\mathrm{CH}_3 \mathrm{CN}<$$ Cyclohexane
D
Cyclohexane $$<\mathrm{CH}_3 \mathrm{CN}<\mathrm{CH}_3 \mathrm{OH}<\mathrm{NaCl}$$
4
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify the incorrect statement about $$\mathrm{PCl}_5$$.

A
$$\mathrm{PCl}_5$$ possesses two different $$\mathrm{Cl}-\mathrm{P}-\mathrm{Cl}$$ bond angles
B
All five $$\mathrm{P}-\mathrm{Cl}$$ bonds are identical in length
C
$$\mathrm{PCl}_5$$ exhibits $$s p^3 d$$ hybridisation
D
$$\mathrm{PCl}_5$$ consists of five $$\mathrm{P}-\mathrm{Cl}$$ (sigma) bonds
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