Question

The value of in HxCr(CO)5 is

Solution

Correct option is

2

 

x electrons shared from x H atoms + 24 electrons of Cr atom + 10 electrons from 5 CO molecules = 36 (EAN)

⇒   x = 2

SIMILAR QUESTIONS

Q1

Which of the following ions are optically active?

Q2

Which of the following polymerization isomers of the compound having empirical formula Cr(NH3)3(NO2)3 has the lowest molecular mass?

Q3

Octahedral complex of Ni (II) must be

Q4

Octahedral complex of Cr(III) will be

Q5

For the correct assignment of electronic configuration of a complex, the valence bond theory often requires the measurement of

Q6

Mn2+ forms a complex with Br ion. The magnetic moment of the complex is 5.92 B.M. What would be the probable formula and geometry of the complex? 

Q7

How many isomers are possible for the complex ion [Cr(NH3)(OH)2Cl3]2–

Q8

A complex of certain metal has the magnetic moment of 4.91 BM whereas another complex of the same metal with same oxidation state has zero magnetic moment. The metal ion could be

Q9

The EAN of metal atoms in Fe(NO)2(CO)2 and Co2(CO)8 respectively are

Q10

Following Sidwick’s rule of EAN, Co2(CO)x will be