MCQ
The pair that has similar atomic radii is
- A$Ti$ and $Hf$
- B$Mn$ and $Re$
- C$Sc$ and $Ni$
- ✓$Mo$ and $W$
✓
Answer
Correct option: D.
$Mo$ and $W$
d
Due to lanthanoide contraction $Mo$ and $W$ have similar atomic radii.
Due to lanthanoide contraction $Mo$ and $W$ have similar atomic radii.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
By rearrangement reaction a compound get converted to :
Three organic compounds $A , B$ and $C$ were allowed to run in thin layer chromatography using hexane and gave the following result (see figure). The $R_f$ value of the most polar compound is $............\,\times 10^{-2}$
→The degree of hydrolysis of $0.1\ M$ solution of $ArNH_3^+ Cl^-$ is $0.01$ . Find the degree of hydrolysis in $0.4\ M$ solution of $ArNH_3^+ Cl^-$
→Consider an imaginary ion ${ }_{22}^{48} X ^{3-}$. The nucleus contains 'a'$\%$ more neutrons than the number of electrons in the ion. The value of '$a$' is $.....$ [nearest integer]
→Which is the weakest among the following types of bond
For a given exothermic reaction, $K_p$ and $K'_p$ are the equilibrium constants at temperatures $T_1$ and $T_2,$ respectively. Assuming that heat of reaction is constant in temperature range between $T_1$ and $T_2,$ it is readily observed that
→The best evidence for the existence and movement of particles in liquids was provided by $ .......... :$
→Which is correctly matched
→Compound $\rightarrow$ O.State of $C.M.I.$
The element that shows greater ability to form $p\pi - p\pi $ multiple bonds, is
→Choose the correct answer. A thermodynamic state function is a quantity: