In which of the following arrangements,the or | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) For option $A$: The acidic strength of hydrohalic acids increases down the group due to the decrease in bond dissociation enthalpy. Thus,$HF < HCl

Vedclass · Accepted Answer

$H_{2}O < H_{2}S < H_{2}Se < H_{2}Te$ : Increasing order of $pK_{a}$ values

Vedclass · Answer

(B) For option $A$: The acidic strength of hydrohalic acids increases down the group due to the decrease in bond dissociation enthalpy. Thus,$HF For option $B$: The acidic strength of hydrides of group $16$ increases down the group $(H_{2}O H_{2}S > H_{2}Se > H_{2}Te$. Thus,the given order is incorrect.For option $C$: The acidic character of hydrides of group $15$ increases down the group due to the increase in bond length and decrease in bond dissociation energy. Thus,$NH_{3} For option $D$: The oxidising power of group $14$ oxides increases down the group due to the inert pair effect,making the $+2$ oxidation state more stable than the $+4$ state for heavier elements. Thus,$CO_{2} < SiO_{2} < SnO_{2} < PbO_{2}$ is correct.

In which of the following arrangements,the order is $NOT$ according to the property indicated against it?

Similar Questions

If $p \Rightarrow (q \vee r)$ is false,then the truth values of $p, q, r$ are respectively

Where is the compound squamous epithelium found?

For a body moving in a circular path,what is the condition for no skidding if $\mu$ is the coefficient of friction?

The electrode potentials for $Cu^{2+}_{(aq)} + e^- \to Cu^{+}_{(aq)}$ and $Cu^{+}_{(aq)} + e^- \to Cu_{(s)}$ are $+0.15 \, V$ and $+0.50 \, V$ respectively. The value of $E^o_{Cu^{2+}/Cu}$ will be ............ $V$.

The frequency for which a $5\,\mu F$ capacitor has a reactance of $\frac{1}{1000}\,\Omega$ is given by

Vedclass Test Series

Exam Paper Generator

Online Exam Module