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Standard XII

Chemistry

CFSE in Octahedral and Tetrahedral Complexes

Which of the ...

Question

Which of the following is/are paramagnetic?

H_{2}^{+}

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H_{2}^{-}

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H_{2}

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H e_{2}^{+}

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Solution

The correct options are
A $H e_{2}^{+}$
B $H_{2}^{-}$
C $H_{2}^{+}$
$H_{2}^{+}$ , $H_{2}^{-}$ and $H e_{2}^{+}$ contains one unpaired electron each and are paramagnetic in nature whereas $H_{2}$ contains all paired electrons and is dimagnetic in nature.

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Similar questions

Calculate the Q-values of the following fusion reactions:

(a) $_{1}^{2} H +_{1}^{2} H \to_{1}^{3} H +_{1}^{1} H$

(b) $_{1}^{2} H +_{1}^{2} H \to_{3}^{2} H e + n$

Atomic masses are $m (_{1}^{2} H e) = 2.014102 u, m (_{1}^{3} H e) = 3.016049 u, m (_{2}^{3} H e) = 3.016029 u, m (_{2}^{4} H e) = 4.002603 u$ .

The $d$ electron configuration of $C r^{2 +}, M n^{2 +}, F e^{2 +}$ and $N i^{2 +}$ are $3 d^{4}, 3 d^{5}, 3 d^{6}$ and $3 d^{8}$ respectively. Which one of the following aqua complexes will exhibit the maximum paramagnetic behaviour?

Q. The

d -

electronic configuration of

C r^{2 +}, M n^{2 +}, F e^{2 +}

and

N i^{2 +}

are

3 d^{4}, 3 d^{5}, 3 d^{6}

and

3 d^{8}

respectively, which one of the following aqua-complex will exhibit the minimum paramagnetic behaviour?

Q. Binding energy per nucleon of

_{1}^{2} H

and

_{2}^{4} H e

are

1.1 M e V

and

7 M e V

respectively. Calculate the amount of energy released in the following process:

_{1}^{2} H +_{1}^{2} H ⟶

_{2}^{4} H e

Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour?
(Atomic number Cr = 24, Mn = 25, Fe = 26, Ni = 28)

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Which of the following is/are paramagnetic?

The correct options are A He+2 B H−2 C H+2H+2, H−2 and He+2 contains one unpaired electron each and are paramagnetic in nature whereas H2 contains all paired electrons and is dimagnetic in nature.

The correct options are
A $H e_{2}^{+}$
B $H_{2}^{-}$
C $H_{2}^{+}$
$H_{2}^{+}$ , $H_{2}^{-}$ and $H e_{2}^{+}$ contains one unpaired electron each and are paramagnetic in nature whereas $H_{2}$ contains all paired electrons and is dimagnetic in nature.