A 0.0020 m aqueous solution in an ionic ...

A 0.0020 m aqueous solution in an ionic compound `Co(NH_3)_5 (NO_2)Cl` freezes at `-0.00732^@C`. Number of moles of ions which 1 mol of ionic compound produces on being dissolved in water will be (`K_f=+1.86^@` C/m)

A

1

B

2

C

3

D

4

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The correct Answer is:

B

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