Question
Describe the standard hydrogen electrode with diagram.
✓
Answer
self
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
Describe the mechanism of replication of DNA.
How will you convert ethyl bromide into:
(i) ethane, (ii) butane, (iii) propanoic acid, and (iv) ethoxyethane?
(i) ethane, (ii) butane, (iii) propanoic acid, and (iv) ethoxyethane?
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
- w/w (mass percentage)
- V/V (volume percentage)
- w/V (mass by volume percentage)
- ppm. (parts per million)
- x (mole fraction)
- M (Molarity)
- m (Molality)
Explain the structure of fructose.
Explain the terms primary and secondary structure of proteins. What is the difference between α-helix and β-pleated sheet structure of proteins?
The rate constant for the decomposition of $\text{N_2O_5}$ at various temperatures is given below:
Draw a graph between ln $k$ and $1/T$ and calculate the values of $A$ and $E_a$. Predict the rate constant at $30^\circ$ and $50^\circ C.$
→| $T/^\circ C$ | $0$ | $20$ | $40$ | $60$ | $80$ |
| $105 \times k/s-1$ | $0.0787$ | $1.70$ | $25.7$ | $178$ | $2140$ |
Explain the mechanism and reactivity of nucleophilic addition reactions of carbonyl compounds (Aldehyde and ketone).
Explain the methods of preparation alcohol from the following compounds:
(a) From carbonyl compound
(b) From carboxylic acid
(c) From esters
(d) From Grignard reagent
(a) From carbonyl compound
(b) From carboxylic acid
(c) From esters
(d) From Grignard reagent
Explain why on addition of 1mol of NaCl to 1 litre of water, the boiling point of water increases, while addition of 1mol of methyl alcohol to one litre of water decreases its boiling point.
$(a).$ Using, Valence Bond Theory identify $\ce{A, B, C, D, E}$ and $\ce{F}$ in the following table$:$
$(b).$ Write the ionic equations for the reaction of acidified $\ce{K_2Cr_2O_7}$ with
$\ce{(i) H_2S}$ and $\ce{(ii) FeSO_4}$
→$(b).$ Write the ionic equations for the reaction of acidified $\ce{K_2Cr_2O_7}$ with
$\ce{(i) H_2S}$ and $\ce{(ii) FeSO_4}$