Which of the following statements are correct?
$(i)$ $V^{2+}$ liberates hydrogen from a dilute acid.
$(ii)$ The earlier members of the lanthanide series behave more like aluminium.
$(iii)$ The 'silver' $UK$ coins are made of $Cu/Ni$ alloy.
$(iv)$ The maximum oxidation state exhibited by Neptunium is $+7$.
$(i)$ $V^{2+}$ liberates hydrogen from a dilute acid.
$(ii)$ The earlier members of the lanthanide series behave more like aluminium.
$(iii)$ The 'silver' $UK$ coins are made of $Cu/Ni$ alloy.
$(iv)$ The maximum oxidation state exhibited by Neptunium is $+7$.
- A$(i)$,$(iii)$ only
- B$(ii)$,$(iv)$ only
- C$(i)$,$(iii)$,$(iv)$ only
- D$(i)$,$(ii)$,$(iii)$ only
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Similar Questions
Match the element in column $I$ with that in column $II$.
Column - $I$ Column - $II$ $(a)$ Copper $(i)$ Non-metal $(b)$ Fluorine $(ii)$ Transition Metal $(c)$ Silicon $(iii)$ Lanthanoid $(d)$ Cerium $(iv)$ Metalloid
Identify the correct match:
| Column - $I$ | Column - $II$ |
| $(a)$ Copper | $(i)$ Non-metal |
| $(b)$ Fluorine | $(ii)$ Transition Metal |
| $(c)$ Silicon | $(iii)$ Lanthanoid |
| $(d)$ Cerium | $(iv)$ Metalloid |
Identify the correct match:
Which of the comparison regarding $Zn, Cd, Hg$ is/are incorrect?
$(I)$ $ZnCl_2$ is ionic whereas $CdCl_2$ and $HgCl_2$ are covalent
$(II)$ $Zn$ and $Cd$ dissolve in dilute acid $(HCl)$ liberating $H_2$ but $Hg$ cannot
$(III)$ $Zn$ and $Cd$ form white ppt. of $Zn(OH)_2$ and $Cd(OH)_2$ but $Hg$ forms coloured ppt. of $HgO$ or $Hg(OH)_2$
$(IV)$ All form $M_2^{2+}$ type ion
$(I)$ $ZnCl_2$ is ionic whereas $CdCl_2$ and $HgCl_2$ are covalent
$(II)$ $Zn$ and $Cd$ dissolve in dilute acid $(HCl)$ liberating $H_2$ but $Hg$ cannot
$(III)$ $Zn$ and $Cd$ form white ppt. of $Zn(OH)_2$ and $Cd(OH)_2$ but $Hg$ forms coloured ppt. of $HgO$ or $Hg(OH)_2$
$(IV)$ All form $M_2^{2+}$ type ion
Medium
View SolutionWhich of the following orders is correct?
Medium
View SolutionWhich of the following represents the correct order of stability for the given oxidation states?
Easy
View SolutionThe difference in the 'spin-only' magnetic moment values of $KMnO_4$ and the manganese product formed during titration of $KMnO_4$ against oxalic acid in acidic medium is .................... $BM$. (nearest integer)
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