MCQ
Identify the correct option
- A$V_2O_5$ reacts with alkalies as well as acids
- BIn Misch metal $S, C, Ca$ and $Al$ present in traces amount with $Ce$
- C$2C{u^ + }\xrightarrow{{aq.}}C{u^ + }^2 + Cu$
- ✓All of the above are correct
✓
Answer
Correct option: D.
All of the above are correct
d
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
The standard e.m.f. of a call, involving one electron change is found to be $0.591\,V $ at $25\,^o C$. The equilibrium constant of the reaction is
→($F = 96,500\;C\;mo{l^{ - 1}}; \,\, R = 8.314\;J{K^{ - 1}}mo{l^{ - 1}})$
The hypothetical reaction : $2A + B \to C + D$ is catalyzed by $E$ as indicated in the possible mechanism below -
→Step$-1$ : ${\text{A + E }} \rightleftharpoons AE$ (fast)
Step$-2$ :${\text{AE + A }} \to {A_2} + E$ (slow)
Step$-3$ :${{\text{A}}_2}{\text{ + B }} \to {\text{D}}$ (fast)
what rate law best agrees with this mechanism
For a reaction, ${X_{2\left( g \right)}} + {Y_{2\left( g \right)}} \rightleftharpoons 2X{Y_{\left( g \right)}}$ If $\Delta G_r^o = 20\, kJ/mol$ and $\Delta S_r^o = -20\, JK^{-1}\,mol^{-1}$ at $200\, K$. Calculate $\Delta H_r^o$ at $400\, K$ (Given $\Delta _rC_P = 20\, JK^{-1}\, mol^{-1}$)
→Number of sp hybridised carbon atom in the given compound is :
→$C{H_2} = CH - C \equiv C - C{H_2} - CN$
The $IUPAC$ name of (figure) is
→Each of the following is true for white and red phosphorus except that they
If ${H^ + }$ ion concentration of a solution is increased by $10 $ times its $ pH $ will be
→The probability of finding electrons in $d_{xy}$ orbital is
→The nature of charge on resulting colloidal particles when $FeCl _{3}$ is added to excess of hot water is :
→The ${E^0}_{{M^{3 + }}/{M^{2 + }}}$values for $Cr,\;Mn,\;Fe$ and $Co$ are $ - 0.41,\; + 1.57,\; + 0.77$ and $ + 1.97\;V$ respectively. For which one of these metals the change in oxidation state from $ + 2$ to $ + 3$ is easiest
→