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.

List-$I$	List-$II$
$(1)$ $Ti^+$	$(A)$ $(n-1)d^4ns^2$
$(2)$ $_{30}Zn$	$(B)$ $(n-1)d^{10}ns^1$
$(3)$ $_{24}Cr$	$(C)$ $(n-1)d^2ns^0$
$(4)$ $_{29}Cu$	$(D)$ $(n-1)d^5ns^1$
	$(E)$ $(n-1)d^0ns^2$
	$(F)$ $(n-1)d^{10}ns^2$

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

Match the elements in List-$I$ with their electronic configurations in List-$II$.

List-$I$ List-$II$

$(1)$ $Ti^+$ $(A)$ $(n-1)d^4ns^2$

$(2)$ $_{30}Zn$ $(B)$ $(n-1)d^{10}ns^1$

$(3)$ $_{24}Cr$ $(C)$ $(n-1)d^2ns^0$

$(4)$ $_{29}Cu$ $(D)$ $(n-1)d^5ns^1$

$(E)$ $(n-1)d^0ns^2$

$(F)$ $(n-1)d^{10}ns^2$

Which of the following outer electronic configurations of elements exhibits the maximum number of oxidation states?

Assertion: Transition metals and their complexes show catalytic activity.
Reason: The activation energy of a reaction is lowered by the catalyst.

The most abundant transition metal in the earth's crust is

In the $3d$ series of transition elements,the atomic radius of $Zn$ increases instead of decreasing because...

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