Acidic Strength of Hypohalous Acids

Q. The correct order for acid strength of compounds $CH\equiv CH,C{H}_3-C\equiv CH$ and $C{H}_2=C{H}_2$ is as follows:

1. $C{H}_3-C\equiv CH>C{H}_2=C{H}_2>HC\equiv CH$
2. $C{H}_3-C\equiv CH>CH\equiv CH>C{H}_2=C{H}_2$
3. $HC\equiv CH>C{H}_3-C\equiv CH>C{H}_2=C{H}_2$
4. $CH\equiv CH>C{H}_2=C{H}_2>C{H}_3-C\equiv CH$

Q. The correct statement(s) regarding the oxoacids, $HCl{O}_4$ and $HClO$, is/are:

1. $HCl{O}_4$ is more acidic than $HClO$ because of the resonance stabilization of its conjugate base
2. $HCl{O}_4$ is formed by reacting $C{l}_2$ and $H_{2}O$
3. The central atom in both $HCl{O}_4$ and $HClO$ are $s{p}^3$ hybridized
4. The conjugate base of $HCl{O}_4$ is weaker base than $H_{2}O$

Q. Arrange the following in increasing order of their $p{K}_a$ values.
(x) $C{H}_{3}S{O}_{3}H$
(y) $C{H}_{3}COOH$
(z) $C{H}_{3}OH$

1. y < x < z
2. x < y < z
3. y < z < x
4. x < z < y

Q. Which of the following statements are correct statements?

1. Carbocation is less $\overline{e}$ deficient than alkyl radical
2. lsornerisation of a less stable carbocation to more stable carbocation by 1.2-Me shift is called Wagner-Meerwein rearrangement
3. Isomerisation to a more stable carbocation is accompanied by decrease in potential energy
4. Greater stability of benzyl, allyl, and $3^o$ carbocation is due to hyperconjugation

Q. $Si{O}_2$, $Ge{O}_2$, $SnO$ and $PbO$ are respectively:

1. acidic, amphoteric, acidic, basic
2. acidic, basic, amphoteric, basic
3. acidic, amphoteric, amphoteric, acidic
4. acidic, amphoteric, amphoteric, basic

Q.

1. ${\lambda }_H>{\lambda }_D>{\lambda }_T$
2. ${\lambda }_H={\lambda }_D={\lambda }_T$
3. ${\lambda }_H<{\lambda }_D<{\lambda }_T$
4. ${\lambda }_H<{\lambda }_D>{\lambda }_T$

Q. The conjugate base of $H_{2}P{O}_4{}^{-}$ is:

1. $P{O}_4^{3-}$
2. $HP{O}_4^{2-}$
3. $H_{3}P{O}_4$
4. $P_2{O}_5$

Q. Consider the coordination compound, $\left[Co\right(N{H}_3{)}_6]C{l}_3$. In the formation of this complex, the species which acts as the Lewis base is:

1. $C{l}^{-}$
2. $C{o}^{3+}$
3. $\left[Co\right(N{H}_3{)}_6{]}^{3+}$
4. $N{H}_3$

Q. Assertion :If $x$ mL of $0.1M$ $KMn{O}_4$ solutions requires $100$ mL of $0.1M$ $CuS$ solution for complete neutralization, then $x$ mL of same $KMn{O}_4$ solution would require $75$ mL of $0.1M$ $C{u}_{2}S$ solution. Reason: ${}^{\prime }{n}^{\prime }$ factor for $CuS$ and $C{u}_{2}S$ are $6$ and $8$ respectively .

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. The order of activites of the various ortho and para director is:

1. $-OH>-O^{-}>-OCOC{H}_3>-COC{H}_3$
2. $-O^{-}>-OH>-OCOC{H}_3>-COC{H}_3$
3. $-OH>-O^{-}>-COC{H}_3>-OCOC{H}_3$
4. $-O^{-}>-COC{H}_3>-OCOC{H}_3>-OH$

Q. The correct statement(s) regarding the oxoacids, $HCl{O}_4$ and $HClO$, is/are:

1. $HCl{O}_4$ is more acidic than $HClO$ because of the resonance stabilization of its conjugate base
2. $HCl{O}_4$ is formed by reacting $C{l}_2$ and $H_{2}O$
3. The central atom in both $HCl{O}_4$ and $HClO$ are $s{p}^3$ hybridized
4. The conjugate base of $HCl{O}_4$ is weaker base than $H_{2}O$

Q. In the following reaction, the final product can be prepared by two paths $\left(I\right)$ and $\left(II\right)$. Which of the following statements is correct?

1. Path $\left(I\right)$ is feasible
2. Path $\left(II\right)$ is feasible
3. Both paths are feasible
4. Neither of the two paths is feasible

Q. The $K_a$ of a weak acid is ${10}^{-5}$, $p{K}_b$ value of its conjugate base is:

1. 7
2. 5
3. 9
4. 6

Q. The correct statement(s) regarding the oxoacids, $HCl{O}_4$ and $HClO$, is/are:

1. $HCl{O}_4$ is more acidic than $HClO$ because of the resonance stabilization of its conjugate base
2. $HCl{O}_4$ is formed by reacting $C{l}_2$ and $H_{2}O$
3. The central atom in both $HCl{O}_4$ and $HClO$ are $s{p}^3$ hybridized
4. The conjugate base of $HCl{O}_4$ is weaker base than $H_{2}O$

Q. The correct statement(s) regarding the oxoacids, $HCl{O}_4$ and $HClO$, is/are:

1. $HCl{O}_4$ is more acidic than $HClO$ because of the resonance stabilization of its conjugate base
2. $HCl{O}_4$ is formed by reacting $C{l}_2$ and $H_{2}O$
3. The central atom in both $HCl{O}_4$ and $HClO$ are $s{p}^3$ hybridized
4. The conjugate base of $HCl{O}_4$ is weaker base than $H_{2}O$

Q. The correct statement(s) regarding the oxoacids, $HCl{O}_4$ and $HClO$, is/are:

1. $HCl{O}_4$ is more acidic than $HClO$ because of the resonance stabilization of its conjugate base
2. $HCl{O}_4$ is formed by reacting $C{l}_2$ and $H_{2}O$
3. The central atom in both $HCl{O}_4$ and $HClO$ are $s{p}^3$ hybridized
4. The conjugate base of $HCl{O}_4$ is weaker base than $H_{2}O$

Q. The $4f$ level is successively filled up in:

1. rare gases
2. alkali metals
3. lanthanides
4. actinides

Q. Which of the following complex(s) will have blue color solution or ppt.?

1. $\left[Cu{\left(N{H}_3\right)}_4\right]{\left(OH\right)}_2$
2. $Co\left[Hg{\left(SCN\right)}_4\right]$
3. $\left[Cu{\left(N{H}_3\right)}_4\right]S{O}_4$
4. $K_3\left[Co{\left(N{O}_2\right)}_6\right]$