Question
Write a note on Sandmeyer reaction.
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How will you bring about the following conversions?
n-Propyl chloride to iso-propyl chloride.
n-Propyl chloride to iso-propyl chloride.
A zinc rod is dipped in 0.1M solution of ZnSO4. The salt is 95% dissociated at this dilution at 298K. Calculate the electrode potential $\Big(\text{E}^{\circ}_{\text{Zn}^{2+/\text{Zn}}}=-0.76\text{V}\Big).$
→Determine the osmatic pressure of a solution prepared by dissolving 2.5×10-2g of K2SO4 in 2L of water at 25oC, assuming that it is completely dissociated.
(R=0.0821 L atm K-1 mol-1, Molar mass of K2SO4=174 g moi-1).
- Deficiency of which vitamin causes rickets?
- Give an example for each of fibrous protein and globular protein.
- write the product formed on reaction of D-glucose with Br, water.
While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.
Write down the IUPAC name for the following complex and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex:
K[Cr(H2O)2(C2O4)2].3H2O
K[Cr(H2O)2(C2O4)2].3H2O
a. Write the formulation for the galvanic cell in which the reaction $C u(s)+2 A g^{+}(a q) \rightarrow C u^{2+}(a q)+2 A g(s)$ takes place.
Identify the cathode and the anode reactions in it.
b. Write Nernst equation and calculate the emf of the following cell: $Sn ( s )\left| Sn ^{2+}(0.04 M ) \| H ^{+}(0.02 M )\right|$ $H _2(g) \mid \operatorname{Pt}( s )$
$\left(\right.$ Given $\left.E_{S n^{2+} / S n}=-0.14 V\right)$
→Identify the cathode and the anode reactions in it.
b. Write Nernst equation and calculate the emf of the following cell: $Sn ( s )\left| Sn ^{2+}(0.04 M ) \| H ^{+}(0.02 M )\right|$ $H _2(g) \mid \operatorname{Pt}( s )$
$\left(\right.$ Given $\left.E_{S n^{2+} / S n}=-0.14 V\right)$
Answer the following questions.
Write about the following on protein synthesis:
Write about the following on protein synthesis:
- Name the location where protein synthesis occurs.
- How do 64 codons code for only 20 amino acids?
- Which of the two bases of the codon are more important for coding?
Calculate the e.m.f at $25^{\circ} c$ for the following cell:
$
N i(s)\left|N i^{2+}(0.01 M) \| C u^{2+}(0.1 M)\right| C u(s)
$
Given: $E ^0 Ni ^{+2} / Ni =-0.25 V$
$
E_{C u^{2+} / C u}^0=+0.34 V
$
$\left[1 F=96,500 Cmol ^{-1}\right]$. Calculate the maximum work that can be accomplished by the operation of this cell
→$
N i(s)\left|N i^{2+}(0.01 M) \| C u^{2+}(0.1 M)\right| C u(s)
$
Given: $E ^0 Ni ^{+2} / Ni =-0.25 V$
$
E_{C u^{2+} / C u}^0=+0.34 V
$
$\left[1 F=96,500 Cmol ^{-1}\right]$. Calculate the maximum work that can be accomplished by the operation of this cell
Define the following terms with example:
(i) Polyester, (ii) Polyamide.
(i) Polyester, (ii) Polyamide.