MCQ
“$925$ fine silver” means an alloy of :
- A$7.5 \% \,Ag$ and $92.5\% \ Cu$
- ✓$92.5 \% \, Ag$ and $7.5 \% \, Cu$
- C$80 \% \,Ag$ and $20 \% \, Cu$
- D$90 \% \,Ag$ and $10 \% \,Cu$
✓
Answer
Correct option: B.
$92.5 \% \, Ag$ and $7.5 \% \, Cu$
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
Metal oxides which decomposes on heating is
Which of following is an example of Pinacol-Diazotization ?
Van't Hoff factor $i$
→Which will have minimum osmotic pressure ?
The equivalent conductance of $M/32$ solution of a weak monobasic acid is $8.0\, mho\, cm^2$ and at infinite dilution is $400\ mho\ cm^2.$ The dissociation constant of this acid is
→Among the following the weakest base is
Expression representing the cell potential $(E\,\,cell)$
→?
The spin-only magnetic moment value of an octahedral complex among $CoCl _{3} \cdot 4 NH _{3}$, $NiCl _{2} \cdot 6 H _{2} O$ and $PtCl _{4} \cdot 2 HCl$, which upon reaction with excess of $AgNO _{3}$ gives $2\, moles$ of $AgCl$ is $....\,B.M.$ (Nearest Integer)
→Match List $-I$ with List $-II$ and select the correct answer using the codes given below
→|
List $-I$ (Ion involved) |
List $-II$ (agent) |
| $(i)\, Ni^{2+}$ | $(A)$ Sodium thiosulphate |
| $(ii)\, Ag^+$ | $(B)$ Sodium nitroprusside |
| $(iii)\, Cu^{2+}$ | $(C)$ Ammonia |
| $(iv)\,S^{2-}$ | $(D)$ Dimethylglyoxime |
$(i)\,\,\,-\,\,\,(ii)\,\,\,-\,\,\,(iii)\,\,\,-\,\,\,(iv)$