Select the correct statements from the follow | vedclass

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

Question

(C) Effective nuclear charge $(Z_{eff})$ for $N$ $(1s^2 2s^2 2p^3)$: $Z_{eff} = Z - \sigma = 7 - [2 	imes 0.85 + 4 	imes 0.35] = 7 - [1.7 + 1.4] = 7

Vedclass · Accepted Answer

$a, c, d$

Vedclass · Answer

(C) Effective nuclear charge $(Z_{eff})$ for $N$ $(1s^2 2s^2 2p^3)$: $Z_{eff} = Z - \sigma = 7 - [2 	imes 0.85 + 4 	imes 0.35] = 7 - [1.7 + 1.4] = 7 - 3.1 = 3.90$. This is correct.$(b)$ $Ne$ $(1s^2 2s^2 2p^6)$ and $Na^+$ $(1s^2 2s^2 2p^6)$ are isoelectronic. $Na^+$ has a higher nuclear charge $(Z=11)$ than $Ne$ $(Z=10)$, so $IP$ of $Na^+ > Ne$. Thus, statement $(b)$ is incorrect.$(c)$ Electronegativity depends on the $s$-character. $sp$ $(50\% s)$ $> sp^2$ $(33.3\% s)$ $> sp^3$ $(25\% s)$. This is correct.$(d)$ Acidic character in hydrides of group $15$ increases down the group due to the decrease in bond dissociation energy. The order is $NH_3 Therefore, statements $(a), (c),$ and $(d)$ are correct.

Select the correct statements from the following:
$(a)$ Effective nuclear charge for nitrogen is $3.90$
$(b)$ $IP$ of $Ne$ is more than $Na^{+}$
$(c)$ Order of electronegativity $sp > sp^2 > sp^3$
$(d)$ Order of acidic character $NH_3 < PH_3 < AsH_3$

Similar Questions

Which of the following statements is $NOT$ correct?

Maximum number of electrons in the outermost shell of $s, p, d$,and $f$ block elements are respectively:

Elements having atomic numbers $33, 47, 53, 59, 68, 74, 82$ are present in which blocks of the periodic table?

In general,the property (magnitudes only) that shows an opposite trend in comparison to other properties across a period is

Which of the following orders is not correct about the property shown against it?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Select the correct statements from the following:$(a)$ Effective nuclear charge for nitrogen is $3.90$$(b)$ $IP$ of $Ne$ is more than $Na^{+}$$(c)$ Order of electronegativity $sp > sp^2 > sp^3$$(d)$ Order of acidic character $NH_3 < PH_3 < AsH_3$