हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Identify the metal and justify your answer. Carbonyl M(CO)X5 - Chemistry

Advertisements
Advertisements

प्रश्न

Identify the metal and justify your answer.

Carbonyl \[\ce{M(CO)5}\]

दीर्घउत्तर
Advertisements

उत्तर

\[\ce{Fe(CO)5}\] as per EAN Rule. 

EAN Rule: Effective atomic number (EAN), number that represents the total number of electrons surrounding the nucleus of a metal atom in a metal complex. 

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 8: The d-and f-Block Elements - Multiple Choice Questions (Type - I) [पृष्ठ ११५]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
अध्याय 8 The d-and f-Block Elements
Multiple Choice Questions (Type - I) | Q 68.(b).(i) | पृष्ठ ११५

संबंधित प्रश्न

Account for the following:

Mn shows the highest oxidation state of +7 with oxygen but with fluorine, it shows oxidation state of +4.


The `E_((M^(2+)//M))^Θ` value for copper is positive (+0.34 V). What is possibly the reason for this? (Hint: consider its high ΔaHΘ and low ΔhydHΘ)


Why are Mn2+ compounds more stable than Fe2+ towards oxidation to their +3 state?


Write balanced chemical equations for the conversion of `CrO_4^(2-)` to `Cr_2O_7^(2-)` in acidic medium and `Cr_2O_7^(2-)` to `CrO_4^(2-)`
 in basic medium.


Why does the density of transition elements increase from Titanium to Copper? (at. no. Ti = 22, Cu = 29)


Transition metals with highest melting point is ____________.


Metallic radii of some transition elements are given below. Which of these elements will have highest density?

Element \[\ce{Fe}\] \[\ce{Co}\] \[\ce{Ni}\] \[\ce{Cu}\]
Metallic radii/pm 126 125 125 128

Interstitial compounds are formed when small atoms are trapped inside the crystal lattice of metals. Which of the following is not the characteristic property of interstitial compounds?


The magnetic moment is associated with its spin angular momentum and orbital angular momentum. Spin only magnetic moment value of \[\ce{Cr^{3+}}\] ion is ______.


Explain why does colour of KMnO4 disappear when oxalic acid is added to its solution in acidic medium.


Assertion (A): Cu cannot liberate hydrogen from acids.

Reason (R): Because it has positive electrode potential.


Assertion: The highest oxidation state of osmium is +8.

Reason: Osmium is a 5d-block element.


The element with atomic number 53 belongs to


If enthalpies of formation of C2H4(g), CO2(g) and H2O(l) at 25°C and 1 atm pressure are 52, – 394 and – 286 kJ/mol respectively, the change in ethalpy for combustion of C2H4 is equal to


The orientation of an atomic orbital is governed by


Which of the following statements is not correct?


Passing H2S gas into a mixture of Mn2+ and Ni2+, Cu2+, ions in an acidified aqueous solution precipitates.


Among the following pairs of ions, the lower oxidation state in aqueous solution is more stable than the other in:-


Explain the use of different transition metals as catalysts.


Describe the oxidising action of potassium dichromate and write the ionic equation for its reaction with H2S.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×