MCQ
Misch metal an alloy of
- A$Ln + Cu$
- ✓$Ce + Fe$
- C$Ca$ and $Cu$
- D$Ln + Ni$
✓
Answer
Correct option: B.
$Ce + Fe$
b
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
$\begin{array}{*{20}{c}}
{\,\,C{H_{3\,\,\,}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C = C{H_2}\xrightarrow[{{R_2}{O_2}}]{{HBr}}X\xrightarrow{{C{H_3}ONa}}Y\,;}
\end{array}$
→{\,\,C{H_{3\,\,\,}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C = C{H_2}\xrightarrow[{{R_2}{O_2}}]{{HBr}}X\xrightarrow{{C{H_3}ONa}}Y\,;}
\end{array}$
$X$ and $Y$ are
Acetophenone can be prepared
Assertion : Aldol condensation can be catalysed both by acids and bases.
Reason : $\beta - $ Hydroxyaldehydes or ketones readily undergo acid-catalysed dehydration
→Reason : $\beta - $ Hydroxyaldehydes or ketones readily undergo acid-catalysed dehydration
Which of the following are purine bases?
When chlorine is treated with carboxylic acid in the presence of red phosphorus then chloro acid will be formed, this reaction is known as
The number of unpaired electrons in $Ni{(CO)_4}$ is
→For certain chemical reaction $X \rightarrow Y$, the rate of formation of product is plotted against the time as shown in the figure. The number of Correct statement/s from the following is $.......$.
→$(A)$ Over all order of this reaction is one
$(B)$ Order of this reaction can't be determined
$(C)$ In region$-I$ and $III$, the reaction is of first and zero order respectively
$(D)$ In region$-II$, the reaction is of first order
$(E)$ In region$-II$, the order of reaction is in the range of $0.1$ to $0.9$.
Mohr's salt is
The Hinsberg reagent is.
Incorrect order is