1. FeSO4 is a very good absorber for NO,the new compound formed by this process is found to contain number of unpaired electrons: (A) 4 (B) 5 (C) 3 (D) 6

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F e S O_{4}

is a very good absorber for

N O

, the new compound formed by this process is found to contain number of unpaired electrons.

The atomic number of chromium is 24. Its electronic configuration in ground state is 1s

^{2}

^{2}

^{6}

^{2}

^{6}

^{1}

^{5}

. Chromium atom by losing 3 electrons form Cr

^{3 +}

ions. A chromium atom contains 17% more neutron than the protons. Now answer the following questions

The number of unpaired electrons in Cr

^{3 +}

ions is :

A mole of $N_{2} H_{4}$ loses 10 mol of electrons to form a new compound Y. Assuming that all the nitrogen appears in the new compound, what is the oxidation state of nitrogen in Y? (There is no change in the oxidation number of hydrogen.)

[{F e (H_{2} O)}_{5} N o]^{2 +}

is formed as brown ring in

{N O}_{3}^{+}

test.

F e

in this complex has _________ unpaired electrons.

Which of these statements about $[C o (C N)_{6}]^{3 -}$ is true ?

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