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

'Spin only' magnetic moment is same for which of the following ions?

A. $$\mathrm{Ti}^{3+}$$

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

C. $$\mathrm{Mn}^{2+}$$

D. $$\mathrm{Fe}^{2+}$$

E. $$\mathrm{Sc}^{3+}$$

Choose the most appropriate answer from the options given below.

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

The highest number of helium atoms is in

A
$$4 \mathrm{~mol}$$ of helium
B
$$\mathrm{4 u}$$ of helium
C
$$4 \mathrm{~g}$$ of helium
D
$$2.271098 \mathrm{~L}$$ of helium at STP
3
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Among Group 16 elements, which one does NOT show -2 oxidation state?

A
O
B
$$\mathrm{Se}$$
C
$$\mathrm{Te}$$
D
Po
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

The $$\mathrm{E}^{\circ}$$ value for the $$\mathrm{Mn}^{3+} / \mathrm{Mn}^{2+}$$ couple is more positive than that of $$\mathrm{Cr}^{3+} / \mathrm{Cr}^{2+}$$ or $$\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}$$ due to change of

A
$$d^5$$ to $$d^4$$ configuration
B
$$d^5$$ to $$d^2$$ configuration
C
$$d^4$$ to $$d^5$$ configuration
D
$$d^3$$ to $$d^5$$ configuration
EXAM MAP