Question
Complete the following reaction equations:
- $C_6H_5NH_2 + Br_2 (aq) \rightarrow$.
Complete the following reaction equations:
✓
Answer
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Similar questions
A compound $‘X’ (C_2H_4O)$ on oxidation gives $‘Y’ (C_2H_4O_2)$. ‘X’ undergoes haloform reaction. On treatment with HCN ‘X’ forms a product ‘Z’ which on hydrolysis gives 2-hydroxy propanoic acid.
→- Write down structures of ‘X’ and ‘Y’.
- Name the product when ‘X’ reacts with dil. NaOH.
- Write down the equations for the reactions involved.
Explain the following:
- Solution of chloroform and acetone is an example of maximum boiling azeotrope.
- A doctor advised a person suffering from high blood pressure to take less quantity of common salt.
Give reasons:
→- $C–Cl$ bond length in chlorobenzene is shorter than $C–Cl$ bond length in $CH_3–Cl.$
- The dipole moment of chlorobenzene is lower than that of cyclohexyl chloride.
- $S_N1$ reactions are accompanied by racemization in optically active alkyl halides.
Vapour pressures of pure acetone and chloroform at $328$ K are $741.8$ mm Hg and $632.8$ mm Hg respectively. Assuming that they form ideal solution over the entire range of composition, plot $p_{total}, p_{chloroform},$ and $p_{acetone}$ as a function of $x_{acetone}$. The experimental data observed for different compositions of mixture is:
Plot this data also on the same graph paper. Indicate whether it has positive deviation or negative deviation from the ideal solution.
→| $100 \times x_{acetone}$ | $0$ | $11.8$ | $23.4$ | $36.0$ | $50.8$ | $58.2$ | $64.5$ | $72.1$ |
| $p_{acetone}/ mm\ Hg$ | $0$ | $54.9$ | $110.1$ | $202.4$ | $322.7$ | $405.9$ | $454.1$ | $521.1$ |
| $p_{chloroform}/ mm\ Hg$ | $632.8$ | $548.1$ | $469.4$ | $359.7$ | $257.7$ | $193.6$ | $161.2$ | $120.7$ |
What are the characteristics of the following colloids? Give one example of each.
- Multimolecular colloids.
- Lyophobic sols.
- Emulsions.
The conductivity of sodium chloride at $298 K$ has been determined at different concentrations and the results are given below:
Calculate $\wedge_\text{m}$ for all concentrations and draw a plot between $\wedge_\text{m}$ and $\text{C}^\frac{1}{2}.$ Find the value of $\wedge^\circ_\text{m}.$
→| Concentration/M | 0.001 | 0.010 | 0.020 | 0.050 | 0.100 |
| $10^2\times k/S m^{-1}$ | 1.237 | 11.85 | 23.15 | 55.53 | 106.74 |
Match the types of defect given in Column I with the statement given in Column II.
→| Column I | Column II | ||
| (i) | Impurity defect | (a) | $NaCl$ with anionic sites called $F-$centres. |
| (ii) | Metal excess defect | (b) | $FeO $with $Fe^{3+}.$ |
| (iii) | Metal deficiency defect | (c) | $NaCl$ with $Sr^{2+}$ and some cationic sites vacant. |
Match the items of Column I and Column II.
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Column I
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Column II
|
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(i)
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Diamond.
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(a)
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Short interval of time.
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(ii)
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Instantaneous rate.
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(b)
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Ordinarily rate of conversion is imperceptible.
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(iii)
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Average rate.
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(c)
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Long duration of time.
|
Explain measurement and calculation of resistance and conductivity of electrolytic solution.
What type of colloidal sols are formed in the following:
- Sulphur vapours are passed through cold water.
- White of an egg is mixed with water.
- Soap solution.