MCQ
Which if the following is a common reducing agent for extracting metals from ore?
- A$CO$
- BCarbon
- CHydrogen
- ✓All of the above
✓
Answer
Correct option: D.
All of the above
Reduction is the process of removal of oxygen for extraction of metals from their oxide ores. The common reducing agents used for reduction of metal oxides are: Carbon monoxide, Carbon, Hydrogen.
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
Product $(C)$ of the reaction is
→ (image) Product $A$ is
→Arrange the following molecules from most to least polar
$I$ , $II$ , $III$ , $IV$ , $V$ respectively
$CH_4$ , $CF_2Cl_2$ , $CF_2H_2$ , $CCl_4$ , $CCl_2H_2$
→$I$ , $II$ , $III$ , $IV$ , $V$ respectively
$CH_4$ , $CF_2Cl_2$ , $CF_2H_2$ , $CCl_4$ , $CCl_2H_2$
When $E_{A{g^ + }/Ag}^o = 0.8$volt and $E_{Z{n^{2 + }}/Zn}^o = - 0.76\,$ volt, which of the following is correct
→In the following reactions, $P, Q, R$, and $S$ are the major products.
→The correct statement ($s$) about $P, Q, R$, and $S$ is (are)
($A$) $P$ and $Q$ are monomers of polymers dacron and glyptal, respectively.
($B$) $P, Q$, and $R$ are dicarboxylic acids.
($C$) Compounds $Q$ and $R$ are the same.
($D$) $R$ does not undergo aldol condensation and $S$ does not undergo Cannizzaro reaction.
Which one of the following pairs of solution will be isotonic at the same temperature ?
Nitration of aniline in strong acidic medium also gives m-nitroaniline because
Which is the strongest base?
For a first order gas phase reaction :
→$A _{( g )} \rightarrow 2 B _{( g )}+ C _{( g )}$
$P _{0}$ be initial pressure of $A$ and $P _{ t }$ the total pressure at time $'t'$. Integrated rate equation is :
Select the gas-phase reaction$(s)$ which can proceed spontaneously ?
→