MCQ
Solubility of $AgCl$ will be minimum in
- A$0.001\,M\,AgN{O_3}$
- BPure water
- ✓$0.01 \,M\; CaCl _2$
- D$0.01\,M\,NaCl$
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The Gibbs free energy change for the above reaction at $298\, K$ is $x \times 10^{-1} \,k\,J\, mol ^{-1}$;
The value of $x$ is ..... [nearest integer]$\left [\text { Given : } E _{ Cu ^{2} / / Cu }=0.34\, V ; E _{ Sn ^{2} / Sn }^{\ominus}=-0.14 \,V ; F=96500\, C\, mol ^{-1}\right]$
| $(IE_1 + IE_2)$ | $(IE_3 + IE_4)$ |
| $(P)$ $2.45\, KJ/mol$ | $8.82\, KJ/mol$ |
| $(Q)$ $2.85\, KJ/mol$ | $6.11\, KJ/mol$ |
then according to given information the incorrect statements is/are
Statement $I:$ According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in positive charges on the nucleus as there is no strong hold on the electron by the nucleus.
Statement $II:$ According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in principal quantum number.
In the light of the above statements, choose the most appropriate answer from the options given below:
$\mathrm{HF}, \mathrm{H}_2 \mathrm{O}, \mathrm{SO}_2, \mathrm{H}_2, \mathrm{CO}_2, \mathrm{CH}_4, \mathrm{NH}_3, \mathrm{HCl}, \mathrm{CHCl}_3, \mathrm{BF}_3$