MCQ
Metal used for making joints in jewellery is
- A$Zn$
- B$Cu$
- C$Ag$
- ✓$Cd$
✓
Answer
Correct option: D.
$Cd$
d
Metal used for making joints in jewellery is copper $( Cu )$
Metal used for making joints in jewellery is copper $( Cu )$
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
Hydrolysis of sodium acetate will give
Three voltameters containing and aqueous solution of $H_2SO_4,$ $CuSO_4$ and $AgNO_3$ are connected in the following way
→A current was passed for $10$ hours. $10.8\ g Ag$ was deposited at cathode in $(III)$ electrolytic cell during electrolysis if current efficiency is $50\%.$
If $Z_1,$ $Z_2$ and $Z_3$ be the electrochemical equivalent in the formation of $H_2, Cu$ and $Ag$ respectively, hence $Z_1 : Z_2 : Z_3$ would be
The reaction:
→$C{H_3}C{H_2}I + KO{H_{(aq)}} \to C{H_3}C{H_2}OH + KI$
is classified as :
Consider the following relations for $emf$ of an electrochemical cell
→$(i)\, EMF$ of cell = (Oxidation potential of anode) $-$ (Reduction potential of cathode)
$(ii)\,EMF$ of cell = (Oxidation potential of anode) $+$ (Reduction potential of cathode)
$(iii)\,EMF$ of cell = (Reductional potential of anode) $+$ (Reduction potential of cathode)
$(iv)\,EMF$ of cell = (Oxidation potential of anode) $-$ (Oxidation potential of cathode)
Which of the above relations are correct?
Which one of the following pairs of solution is not an acidic buffer?
(image) $\xrightarrow[{(ii)\,{H^ + }/2{H_2}O,{0^o}C}]{{(i)\,NaOH(excess)}}$
→Half life of zero order reaction $A \rightarrow$ product is 1 hour, when initial concentration of reaction is $2.0$ $mol$ $L ^{-1}$. The time required to decrease concentration of A from $0.50$ to $0.25$ $mol$ $L ^{-1}$ is:
→Which of the following is arranged in order of increasing melting point?
Oxidation of ethanol by chromic acid forms
Ethyl bromide can be converted into ethyl alcohol by