Assertion: In general,transition metals have | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The transition metals (with the exception of $Zn$,$Cd$,and $Hg$) are very hard and have low volatility. Their melting and boiling points are high.

Vedclass · Accepted Answer

Assertion is true,Reason is true and Reason is the correct explanation for Assertion

Vedclass · Answer

(A) The transition metals (with the exception of $Zn$,$Cd$,and $Hg$) are very hard and have low volatility. Their melting and boiling points are high. The high melting points of these metals are attributed to the involvement of a greater number of electrons from $(n-1)d$ orbitals in addition to the $ns$ electrons in the interatomic metallic bonding. Since more electrons participate in metallic bonding,the strength of the metallic bond increases,leading to higher melting points. Thus,the Assertion is true and the Reason is the correct explanation for the Assertion.

Assertion: In general,transition metals have high melting points.
Reason: More number of electrons from $(n-1)d$ and $ns$ are involved in interatomic metallic bonding.
The correct option among the following is

Similar Questions

The magnetic moment of a metal ion of the first transition series is $2.83 \ BM$. Therefore,it will have how many unpaired electrons?

Which of the following metal ions in their respective oxidation states forms a coloured compound?

The atomic radii of the elements are almost the same for which series?

The second and third rows of transition elements resemble each other much more than they resemble the first row. Explain why?

Given below are two statements:
Statement $I$: $Cr^{2+}$ is oxidising and $Mn^{3+}$ is reducing in nature.
Statement $II$: $Sc^{3+}$ compounds are repelled by the applied magnetic field.
In the light of the above statements,choose the most appropriate answer from the options given below:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion: In general,transition metals have high melting points.Reason: More number of electrons from $(n-1)d$ and $ns$ are involved in interatomic metallic bonding.The correct option among the following is