Download App

Electrochemistry — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryElectrochemistry2 Marks
Question
Define the following terms:
  1. Molar conductivity $(\wedge_{\text{m}})$
  2. Secondary batteries
✓

Answer

  1. Molar conductivity is defined as the conductivity due to all the ions produced by dissolving one mole of an electrolyte in solution.
  2. In the secondary batteries, the reactions can be reversed by an external electrical energy source. These batteries can be recharged by passing electric current and used again and again.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Electrochemistry→Electrochemistry — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Define the following terms:
  1. Colligative properties.
  2. Molality (m).
→
Arrange the following in order of property indicated for set.
$(CH_3)_2CHCOOH, CH_3CH_2CH(Br)COOH, CH_3CH(Br)CH_2COOH ($increasing order of their acid strengths$).$
→
State the importance of diazonium salts in the synthesis of aromatic compounds.
→
Some halogen containing compounds are useful in daily life. Some compounds of this class are responsible for exposure of flora and fauna to more and more of UV light which causes destruction to a great extent. Name the class of these halocompounds. In your opinion, what should be done to minimise harmful effects of these compounds.
→
Which method is most suitable to determine molecular mass of polymer ?
→
Calculate the efficiency of packing in case of a metal crystal for:
Body-centred cubic.
→
(i) Write the equation for the reaction of $CH _3 I$ with $KNO _2$ and $AgNO _2$.
(ii) Write the Friedel-Crafts reaction to prepare toluene from benzene.
→
A first order gas reaction $\mathrm{A}_2 \mathrm{~B}_2(\mathrm{~g}) \rightarrow 2 \mathrm{~A}(\mathrm{~g})+2 \mathrm{~B}(\mathrm{~g})$ at the temperature $400^{\circ} \mathrm{C}$ has the rate constant $\mathrm{K}=2.0 \times 10^{-4} \mathrm{~s}^{-1}$. What percentage of $A_2 B_2$ is decomposed on heating for $900$ seconds.
→
(i) $Ce ^{+4}$ is a strong oxidant, why?
(ii) $Eu ^{2+}$ is a strong reducing agent, why?
→
Write the mechanism of the reaction of HI with methoxybenzene.
→