Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
EasyWhich of the following metals is present in Brass,Bronze,and German silver?
- A$Cu$
- B$Na$
- C$Mg$
- D$Al$
Explore More
Similar Questions
In the leaching of $Ag_2S$ with $NaCN$,a stream of air is also passed. It is because of
Difficult
View SolutionIdentify the correct statements from the following:
$(i)$ In the extraction of $Ag$ and $Au$,zinc is used as a reducing agent.
$(ii)$ Impure zinc can be refined by distillation method.
$(iii)$ Malachite is an ore of nickel.
$(i)$ In the extraction of $Ag$ and $Au$,zinc is used as a reducing agent.
$(ii)$ Impure zinc can be refined by distillation method.
$(iii)$ Malachite is an ore of nickel.
Which of the following reactions is $NOT$ entropy-driven with reference to extractive metallurgy? (unbalanced reactions)
Medium
View SolutionMatch the items under List-$I$ with the compounds/elements from the List-$II$. Select the correct answer from the sets $(a), (b), (c)$ and $(d)$.
List-$I$ List-$II$ $(i)$ Explosive $(A)$ $NaN_3$ $(ii)$ Artificial gem $(B)$ $Fe_3O_4$ $(iii)$ Self reduction $(C)$ $Sn$ $(iv)$ Magnetic material $(D)$ $Al_2O_3$ $(E)$ $Pb(N_3)_2$ $(F)$ $Fe_2O_3$ $(G)$ $Cu$ $(H)$ $SiC$
| List-$I$ | List-$II$ |
|---|---|
| $(i)$ Explosive | $(A)$ $NaN_3$ |
| $(ii)$ Artificial gem | $(B)$ $Fe_3O_4$ |
| $(iii)$ Self reduction | $(C)$ $Sn$ |
| $(iv)$ Magnetic material | $(D)$ $Al_2O_3$ |
| $(E)$ $Pb(N_3)_2$ | |
| $(F)$ $Fe_2O_3$ | |
| $(G)$ $Cu$ | |
| $(H)$ $SiC$ |
Medium
View SolutionCopper matte is composed of . . . . . .
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo