MCQ
Which of the following does not contain copper
- ABrass
- BBronze
- CAzurite
- ✓Calamine
✓
Answer
Correct option: D.
Calamine
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
Equilibrium constant $(K_c)$ of $2HI_{(g)} \rightleftharpoons H_{2(g)} + I_{2(g)}$ is $5\times10^3$. What is the equilibrium concentration of $HI$, if equilibrium concentrations of $H_{2(g)}$ and $I_{2(g)}$ respectively are $2.2\times10^{-2}\, M$ and $2.2\times10^{-4}\, M$ ?
→What minimum decomposition potential is necessary to produce $Cl_2$ gas in following reaction ................ $\mathrm{V}$
→Given :( $\frac{{2.303RT}}{F} = 0.06)$
$s{n^{ + 2}}\left( {1M} \right) + 2C{l^ - }\left( {2M} \right) \rightleftharpoons s{n_{\left( s \right)}} + C{l_2}\left( {1\,atm} \right)$
Given : ${E^o}_{s{n^{ + 2}}/sn} = - 0.14$ ${E^o}_{C{l_2}/C{l^- }} = 1.4\,V$
Order of liquification of noble gases is
Which pairs of the salts would have identical solubilities in methanol ?
is:
$C{H_3} - \mathop C\limits_{\mathop {||}\limits_O } - C{H_2} - COO{C_2}{H_5}\mathop {\xrightarrow{{NaOH}}}\limits_{{H_2}O} A,$ product $‘A’$ in the reaction is
→How many geometrical isomers are possible for complex $[Mab(AB)_2]^{±n}$
→The $I.U.P.A.C. $ name of ${K_3}[Ir{({C_2}{O_4})_3}]$ is
→Which element exist as a solid at $25\,^oC$ and $1$ atmospheric pressure among the following
→Consider the following compounds
→$(i)\,\, C_6H_5COCl$
The correct decreasing order of their reactivity towards hydrolysis is