To solve this problem, we need to understand how the boiling point of solutions is affected by their concentration and the nature of the solute. The boiling point elevation is a colligative property, which means it depends on the number of solute particles in a solution. The formula for boiling point elevation is:
ΔTb=iKbm
Where:
Let's analyze each solution:
Order these solutions by their boiling point elevation. Higher the product of i and concentration, higher the boiling point:
Solution | i | Concentration | i×Concentration |
---|---|---|---|
(i) 10-4 M NaCl | 2 | 10-4 | 2×10-4 |
(ii) 10-4 M Urea | 1 | 10-4 | 1×10-4 |
(iii) 10-3 M NaCl | 2 | 10-3 | 2×10-3 |
(iv) 10-2 M NaCl | 2 | 10-2 | 2×10-2 |
Resulting order of increasing boiling points:
(ii) < (i) < (iii) < (iv)
Let $ f(x) = \begin{cases} (1+ax)^{1/x} & , x<0 \\1+b & , x = 0 \\\frac{(x+4)^{1/2} - 2}{(x+c)^{1/3} - 2} & , x>0 \end{cases} $ be continuous at x = 0. Then $ e^a bc $ is equal to
Total number of nucleophiles from the following is: \(\text{NH}_3, PhSH, (H_3C_2S)_2, H_2C = CH_2, OH−, H_3O+, (CH_3)_2CO, NCH_3\)