MCQ
Gun metal is an alloy of
- A$Cu$ and $Al$
- ✓$Cu,\,Sn$ and $Zn$
- C$Cu,\,Zn$ and $Ni$
- D$Cu$ and $Sn$
✓
Answer
Correct option: B.
$Cu,\,Sn$ and $Zn$
b
(b)$Cu = 88\%$, $Sn = 10\%$, $Zn = 2\%$, $Pb = 0.5\% $ $\to$ Gun Metal
(b)$Cu = 88\%$, $Sn = 10\%$, $Zn = 2\%$, $Pb = 0.5\% $ $\to$ Gun Metal
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
Calculate $x + y + z$ for $H_3PO_3$ acid, where $x$ is number of lone pairs, $y$ is number of $\sigma $ bonds and $z$ is number of $\pi -$ bonds
→The outermost electronic configuration of the most electronegative element is
Ionisation depends upon
Select the correct statement about the given complex
$RMgX + CO _{2} \underset{\text { ether }}{\stackrel{\text { dry }}{\longrightarrow}} Y \stackrel{ H _{3} O ^{+}}{\longrightarrow} RCOOH$
→What is $Y$ in the above reaction?
For the compounds $CH_3Cl, CH_3Br, CH_3I$ and $CH_3F$, the correct order of increasing $C-$ halogen bond length is
→For a first order reaction $A \longrightarrow$ Product, the initial concentration of A is 0.1 M and after 40 minute it becomes 0.025 M . Calculate the rate of reaction at reactant concentration of 0.01 M .
→Which of the following can show optical activity
Adsorption is accompained by
Which of the following configurations represents atoms of the elements having the highest second ionization energy