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
$5\,\,mole$ of an ideal gas expand isothermally and irreversibly from a pressure of $10\,\,atm$ to $1\,\,atm$ aganist a constant external pressure of $1\,\,atm.$ $w_{irr}$ at $300\,\,K$ is
→For the reaction ${H_2}O(s)$ $\rightleftharpoons$ ${H_2}O(l)$ at ${0\,^o}C$ and normal pressure
→Correct expression of "Allred and Rochow's" scale is
Identify ($B$) and ($C$) and how are ($A$) and ($C$) related ?
→The enthalpy of neutralization of a strong acid by a strong base is $-57.32\ kJ/mol$ the enthalpy of formation of water is $-285.84\ kJ/mol$ . The enthalpy of formation of hydroxyl ion is......$kJ/mol$
→The ionization energy will be higher when the electron is removed from
Given a $0.1\,M$ solution of each of the following. Which solution has the lowest $pH$
→Assign $A, B, C, D$ from given type of reaction.
→${N_2}{O_3}\xrightarrow{{R.T.}}NO + N{O_2}$
The percentage of copper and oxygen in samples of $CuO$ obtained by different methods were found to be the same. This illustrates the law of
→The solubility product for a salt of the type $AB$ is $4 \times 10^{-8}$. What is the molarity of its standard solution?
→