Download App

Question Bank [2022] — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryQuestion Bank [2022]3 Marks
Question
Define Reference electrode
✓

Answer

It is an electrode whose potential is arbitrarily taken as zero or is exactly known. Standard Hydrogen Electrode (SHE), calomel electrode, silver-silver chloride electrode and glass electrode are some examples of reference electrode.

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 "Answer the following in brief." from Question Bank [2022]→Question Bank [2022] — all question types→Chemistry STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Write the $IUPAC$ name of $[Ni(CN)_4]^{2–}$.
→
What are interhalogen compounds? Give two examples.
→
How is carbolic acid prepared from chlorobenzene? What is the action of bromine water on carbolic acids? Write chemical test to distinguish between carbolic acid and alcohol.
→
Write a note on a zero order reaction.###What is a zero order reaction? Explain.
→
Calculate $E _{\text {cell }}$ and $\Delta G$ for the following at $28^{\circ} C$ :
$Mg _{( s )}+ Sn ^{2+}(0.04 M ) \longrightarrow Mg ^{2+}(0.06 M )+ Sn _{( s )} E_{\text {cell }}^0=2.23 V$
Is the reaction spontaneous?
→
The vapour pressure of pure benzene is $640 \ mm$ of $Hg. 2.175 \times 10^{-3} \ kg$ of non$-$volatile solute is added to $39$ gram of benzene, the vapour pressure of solution is $600 \ mm$ of $Hg.$ Calculate molar mass of solute. $[C= 12, H=1].$
→
Write the general electronic configuration of lanthanoids. Why are most of the compounds of transition metals coloured?
→
Calculate the number of atoms present in $2$ gram of crystal which has face—centered cubic $(fcc)$ crystal lattice having edge length of $100 \ pm$ and density $10 \ g \ cm^{-3}$
→
An organic compound gives hydrogen on reaction with sodium metal. It forms an aldehyde having molecular formula $C_2H_4O$ on oxidation with pyridinium chlorochromate. Name the compounds and give equations of these reactions.
→
In a first order reaction, the concentration of reactant decreases from $20 mmol dm ^{-3}$ to $8 mmol dm ^{-3}$ in 38 minutes. What is the half life of reaction? ( 28.7 min )
→