jee-main 2025 Q44

jee-main · India · session2_07apr_shift2 Not Maths
Q44. Given below are two statements : Statement (I) : Fusion of $\mathrm { MnO } _ { 2 }$ with KOH and an oxidising agent gives dark green $\mathrm { K } _ { 2 } \mathrm { MnO } _ { 4 }$. Statement (II) : Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion. In the light of the above statements, choose the correct answer from the options given below :
(1) Statement I is true but Statement II is false
(2) Both Statement I and Statement II are false
(3) Statement I is false but Statement II is true
(4) Both Statement I and Statement II are true
Q45.
List - I (Complex ion)
List - II
(Spin only magnetic moment in B.M.)
Match List - I with List - II.
(A) $\left[ \mathrm { Cr } \left( \mathrm { NH } _ { 3 } \right) _ { 6 } \right] ^ { 3 + }$
(B) $\left[ \mathrm { NiCl } _ { 4 } \right] ^ { 2 - }$ (III) 0.0 (IV) 2.83
(C) $\left[ \mathrm { CoF } _ { 6 } \right] ^ { 3 - }$ (I) 4.90 (II) 3.87
(D) $\left[ \mathrm { Ni } ( \mathrm { CN } ) _ { 4 } \right] ^ { 2 - }$
Choose the correct answer from the options given below :
(1) (A)-(II), (B)-(III), (C)-(I), (D)-(IV)
(2) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
(3) (A)-(I), (B)-(IV), (C)-(II), (D)-(III)
(4) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
Q44. Given below are two statements : Statement (I) : Fusion of $\mathrm { MnO } _ { 2 }$ with KOH and an oxidising agent gives dark green $\mathrm { K } _ { 2 } \mathrm { MnO } _ { 4 }$. Statement (II) : Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion. In the light of the above statements, choose the correct answer from the options given below :\\
(1) Statement I is true but Statement II is false\\
(2) Both Statement I and Statement II are false\\
(3) Statement I is false but Statement II is true\\
(4) Both Statement I and Statement II are true

\section*{Q45.}
List - I\\
(Complex ion)

\section*{List - II}
(Spin only magnetic moment in B.M.)

\section*{Match List - I with List - II.}
(A) $\left[ \mathrm { Cr } \left( \mathrm { NH } _ { 3 } \right) _ { 6 } \right] ^ { 3 + }$\\
(B) $\left[ \mathrm { NiCl } _ { 4 } \right] ^ { 2 - }$\\
(III) 0.0\\
(IV) 2.83\\
(C) $\left[ \mathrm { CoF } _ { 6 } \right] ^ { 3 - }$\\
(I) 4.90\\
(II) 3.87\\
(D) $\left[ \mathrm { Ni } ( \mathrm { CN } ) _ { 4 } \right] ^ { 2 - }$

Choose the\\
correct answer from the options given below :\\
(1) (A)-(II), (B)-(III), (C)-(I), (D)-(IV)\\
(2) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)\\
(3) (A)-(I), (B)-(IV), (C)-(II), (D)-(III)\\
(4) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)