Question
Match the properties given in Column I with the metals given in Column II.
 
Column I (Property)
 
Column II (Metal)
$(i)$
Element with highest second ionisation enthalpy
$(a)$
$Co$
$(ii)$
Element with highest third ionisation enthalpy
$(b)$
$Cr$
$(iii)$
$M$ in $M$ $(CO)6$ is
$(c)$
$Cu$
$(iv)$
Element with highest heat of atomisation
$(d)$
$Zn$
   
$(e)$
$Ni$

Answer

 
Column I (Property)
 
Column II (Metal)
$(i)$
Element with highest second ionisation enthalpy
$(c)$
$Cu$
$(ii)$
Element with highest third ionisation enthalpy
$(d)$
$Zn$
$(iii)$
$M$ in $M$ $(CO)6$ is
$(b)$
$Cr$
$(iv)$
Element with highest heat of atomisation
$(e)$
$Ni$
Explanation:
  1. $Cu^+ = 3d^{10}$ witch is very stable configuration due to full-filled orbitals.Hense, removal of second electron requires veryhigh energy.
  2. $Zn^{2+} = 3d^{10}$ witch is very stable configuration.Hense, removal of thirdelectron requires veryhigh energy.
  3. Metal carbonyl with farmula $M(CO)_6$ is $Cr(CO)_6.$
  4. Nickel is the elementswith highest heat of atomization

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The decomposition of a hydrocarbon follows the equation.$\text{k}=(4.5\times10^{11}\text{s}^{-1})\text{e}^{-28000}\text{ K/T}$
Calculate Ea.
Attempt any five of the following:
(a) Name the enzyme which convert surcrose into glucose and fructose.
(b) i. Name any two bases which are common to both DNA and RNA.
     ii. Which vitamin deficiency causes:
1. Bone deformities in children?
2. Pernicious anaemia?
(c) What are heterocyclic bases?
(d) Write the name of linkage joining two monosaccharides.
(e) Name the purines present in DNA.
(f) Give an example of fibrous protein.
(g) Of the two bases named below, which one is present in RNA and which one is present in DNA?
i. Thymine
ii. Uracil
  1. Write the steps involved in the preparation of:
  1. $K_2Cr_2O_7$_ from $Na_2CrO_{4.}$​​​​​​​
  2. $KMnO_4$​​​​​​​_ from $K_2MnO_{4.}$
  3. Calomel from corrosive sublimate.
  1. What is meant by lanthanoid contraction? What effect does it have on the chemistry of the elements which follow lanthanoids?
Derive the Nernst equation and explain how $E_{\text {cell }}^{\circ}$ depends on concentration of ions.
With the help of a labelled diagram show that there are four octahedral voids per unit cell in a cubic close packed structure.
Mention the type of compounds formed when small atoms like H, C and N get trapped inside the crystal lattice of transition metals. Also give physical and chemical characteristics of these compounds.
  1. Define the following terms:
  1. Mole fraction.
  2. Van’t Hoff factor.
  1. $100 mg$ of a protein is dissolved in enough water to make $10.0 mL$ of a solution. If this solution has an osmotic pressure of $13.3 mm$ Hg at $ 25° C$, what is the molar mass of protein?
$(R = 0.0821 L\ atm\ mol^{–1} K^{–1}$ and $760 mm\ Hg\ = 1 atm.)$
What are the classification of proteins on the basis of molecular shape?
  1. Give reasons for the following:
  1. Sulphur in vapour state shows paramagnetic behaviour.
  2. N-N bond is weaker than P-P bond.
  3. Ozone is thermodynamically less stable than oxygen.
  1. Write the name of gas released when Cu is added to
  1. dilute $HNO_3$
  2. conc. $HNO_3$
Answer the following question: How will you convert phenol to benzoic acid?