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On the basis of the equation pH = –log [H+], the pH of 10–8mol dm–3 solution of HCl should be 8. However, it is observed to be less than 7.0. Explain the reason.
Assign the position of elements having outer electronic configuration:
- ns2 np4 for n = 3
- (n - 1)d2 ns2 for n = 4
For the equilibrium,
$
2 NOCl(g) \rightleftharpoons 2 NO(g)+Cl_2(g)
$
the value of the equilibrium constant, $K _{ c }$ is $3.75 \times 10^{-6}$ at 1069 K . Calculate the $K _{ p }$ for the reaction at this temperature?
→$
2 NOCl(g) \rightleftharpoons 2 NO(g)+Cl_2(g)
$
the value of the equilibrium constant, $K _{ c }$ is $3.75 \times 10^{-6}$ at 1069 K . Calculate the $K _{ p }$ for the reaction at this temperature?
In elements of second period give reason for difference in properties of Li and Be .
2 × 108 atoms of carbon are arranged side by side. Calculate the radius of carbon atom if the length of this arrangement is 2.4cm.
Calculate the pH of the resultant mixtures:
10mL of 0.1M H2SO4 + 10mL of 0.1M KOH
10mL of 0.1M H2SO4 + 10mL of 0.1M KOH
Give IUPAC names of the following structures.
Consider the following gas phase reaction:
→$\text{H}_{2}\text{(g)} + \text{Cl}_{2} \text{(g)} \rightleftharpoons\text{2HCl(g)}$
$\Delta\text{H}^{\circ} = -92\text{kJ}, \ \Delta\text{S}^{\circ} = -95\text{JK}^{-1}$
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(i) $CH _3 Cl$
(ii) $H C O N H _2$
(iii) $CH _3 CN$
→(i) $CH _3 Cl$
(ii) $H C O N H _2$
(iii) $CH _3 CN$
Classify the following pairs as position, chain, functional isomers or metamers:
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- Ethanol and Dimethylether.