MCQ
The atomic numbers of elements of second inner transition elements lie in the range of:
- A88 to 101
- B89 to 102
- C90 to 103
- D91 to 104
✓
Answer
- 90 to 103
Explanation:
Second inner transition elements are from thorium to lawrencium, i.e., from atomic numbers 90 to 103.
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
A $1.0\,M$ with respect to each of the metal halides $AX_3 ,\,BX_2 ,\,CX_3$ and $DX_2$ is electrolysed using platinum electrodes. If
→$E_{{A^{3 + }}/A}^o = 1.50\,\,V\,,$ $E_{{B^{2 + }}/B}^o = 0.3\,\,V,$
$E_{{C^{3 + }}/C}^o = - \,0.74\,\,V,$ $E_{{D^{2 + }}/D}^o = - \,2.37\,\,V.$
The correct sequence in which the various metals are deposited at the cathode is
Consider the $S_N1$ solvolysis of the following halides in aqueous formic acid :
→$(I)$ $\begin{array}{*{20}{c}} {C{H_3}\,\,\,\,\,\,Br} \\ {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,} \\ {C{H_3} - CH - CH - C{H_3}} \end{array}$
$(II)$ $[Figure\,2]$
$(III)$ $\begin{array}{*{20}{c}} {{C_6}{H_5} - CH - {C_6}{H_5}} \\ {|\,\,\,} \\ {Br} \end{array}$
$(IV)$ $[Figure\,4]$
Which one of the following is correct sequence of the halides given above in the decreasing order of their reactivity ?
Which has the maximum ferromagnetic character
Hypo is used in photography for
At $298\, K$ find out the $emf$ for the cell ................ $\mathrm{V}$
→$A{l_{\left( s \right)}}|A{l^{ + 3}}\left( {0.1\,M} \right)||F{e^{ + 2}}\left( {0.001\,M} \right)|Fe\left( s \right)$ If $E_{A{l^{ + 3}}/Al}^o = - 1.66\,V$ and $E_{Fe/F{e^{ + 2}}}^o = + 0.44\,V$
A solution of methyl amine
Reduction of alkyl nitriles in presence of LiAlH4 Gives:
Which of the following statements concern with transition metals ?
Assertion : For the Daniel cell, $Zn|Zn^{2+} ||Cu^{2+}|Cu$ with, $E_{cell} = 1.1\,V$, the application of opposite potential greater than $1.1\,V$ results into flow of electron from cathode to anode.
→Reason : $Zn$ is deposited at anode, and $Cu$ is deposited at cathode.
Lysine is least soluble in water in the $pH$ range
→