MCQ
The enhanced force of cohesion in metals is due to
- AThe covalent linkages between atoms
- BThe electrovalent linkages between atoms
- CThe lack of exchange of valency electrons
- ✓The exchange energy of mobile electrons
The enhanced Cohesion force is due to the EXCHANGE OF ENERGY IN MOBILE ELECTRONS.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Reason : The third ionization energy of $Mn$ is larger than that of $Cr$.
$r = P{Z_{AB}}{e^{ - Ea/RT}}$
which term is called steric factor
[Given : The solubility product of $Ca ( OH )_{2}$ in water $\left.=5.5 \times 10^{-6}\right]$

| Column $-1$ | Column $-2$ |
| $(A)$ Haber's process for ammonia | $(P)$ Zeolite |
| $(B)$ Oswald's process for $HNO_3$ | $(Q)$ $Fe$ |
| $(C)$ Contact processf $H_2SO_4$ | $(R)$ $ V_2O_5$ |
| $(D)$ Cracking of hydrocarbons | $(S)$ $Pt$ gauge |