Which statement is false?

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

Question

(D) $1$. In the $3d$ series,the effective nuclear charge $(Z_{eff})$ increases by $0.15$ for each subsequent element due to poor shielding of $d$-elec

Vedclass · Accepted Answer

$H_3PO_2 > H_3PO_3 > H_3PO_4$ acidic character

Vedclass · Answer

(D) $1$. In the $3d$ series,the effective nuclear charge $(Z_{eff})$ increases by $0.15$ for each subsequent element due to poor shielding of $d$-electrons,which is a correct statement.$2$. $_{90}Th$ (Thorium) is often considered an exception in block classification because it is a $f$-block element but does not contain $f$-electrons in its ground state,which is a correct statement.$3$. The process $P + e^{-} 	o P^{-}$ is exothermic because Phosphorus has a half-filled $p$-orbital $(3p^3)$,making the addition of an electron release energy,which is a correct statement.$4$. The acidic character of oxoacids of Phosphorus depends on the number of $P-OH$ groups. The order is $H_3PO_4 > H_3PO_3 > H_3PO_2$. The given statement $H_3PO_2 > H_3PO_3 > H_3PO_4$ is false.

$a$. Pure nitrogen	$i$. Chlorine
$b$. Haber process	$ii$. Sulphuric acid
$c$. Contact process	$iii$. Ammonia
$d$. Deacon's process	$iv$. Sodium azide or Barium azide

Similar Questions

Which of the following processes does not produce ammonia gas?

Match the following:

$a$. Pure nitrogen $i$. Chlorine

$b$. Haber process $ii$. Sulphuric acid

$c$. Contact process $iii$. Ammonia

$d$. Deacon's process $iv$. Sodium azide or Barium azide

Which of the following is the correct option?

Which of the following has the highest number of $P-H$ bonds?

The bond energies (in $kJ \ mol^{-1}$) of $N-H$,$P-H$,and $As-H$ are respectively:

The correct order of boiling points of hydrides of $15^{th}$ group elements is

Vedclass Test Series

Exam Paper Generator

Online Exam Module