Home
Class 11
CHEMISTRY
Which one of the following pairs has hig...

Which one of the following pairs has higher `Delta_(eg)H^(ɵ)`?
(a) `S^(ɵ), O` , (b) `N^(ɵ), P`
(c ) `S, O^(ɵ)` , (d) `O^(ɵ), S^(ɵ)`

Text Solution

Verified by Experts

`S^(ɵ) gt O`
Due to repulsion between the electrons on `S^(ɵ)` and the additional incoming electrons `Delta_(eg)H^(ɵ)` of `S^(ɵ) = + ve` unlike that of `O` is `-ve`.
b. `N^(ɵ) gt P`
Due to repulsion between the electrons on `N^(ɵ)` and the addition incoming electron `Delta_(eg)H^(ɵ)` of `N^(ɵ) = + ve` while that of `P` is `- ve`.
c. `O^(ɵ) gt S`. (Same explanation as in `(a)` and `(b)`.
d. `O^(ɵ) gt S^(o-)`
Due to small size of `O` atom, repulsion between the electrons on `O^(ɵ)` and the additional incoming electron is much more than in `S^(ɵ)`.
Hence, `Delta_(eg)H^(ɵ)` of `O^(ɵ)` is more `+ve` than that of `S^(ɵ)`.
Promotional Banner

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Solved Examples|34 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Ex 1.1|14 Videos

  • P-BLOCK GROUP 14 - CARBON FAMILY

    CENGAGE CHEMISTRY|Exercise Exercises Archives (Subjective)|9 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise Assertion Reasoning Type|5 Videos

Similar Questions

Explore conceptually related problems

Which of the following are isoelectronic? NO_(3)^(ɵ), CO_(3)^(2-), ClO_(3)^(ɵ), SO_(2)

Which of the following pairs would have a smaller size. Explain. (a) Na^(o+) or Mg^(2+) , (b) O^(2-) or F^(ɵ) (c ) P or As

Arrange the elements with the following electronic configuration of valence electron in decreasing order of Delta_(eg)H^(ɵ) . (a) 3s^(2)3p^(4) , (b) 2s^(2)2p^(4) ( c) 2s^(2)2p^(3) , (d) 2s^(2)2p^(5)

Arrange the following in order of decreasing radii? a. F^(ɵ), O^(2-), N^(3-), S^(2-) , b. P, Si, N, C , c. I^(ɵ), I^(o+), I

Name the elements with highest EN and with highest EA or Delta_(eg)H^(ɵ) .

Write increasing order of basic strength of following: (i). (a) F^(ɵ) , (b). Cl^(ɵ) , (c). Br^(ɵ) , (d). I^(ɵ) (A). a gt b gt c gt d (B). d lt a lt c lt b (C). d gt a gt b gt c (D). a gt d gt c gt b (ii). (a). CH_(3)^(ɵ) , (b). Cl^(ɵ) , (c) OH^(ɵ) , (d). F^(ɵ) (A). a gt b gt c gt d (B). d lt a lt c lt b (C). d gt a gt b gt c (D). a gt d gt c gt b (iii). (a). R-NH_(2) , (b). Ph-NH_(2) , (c). R-underset(O)underset(||)(C)-NH_(2) (A). a gt b gt c (B). a lt c lt b (C). a lt b lt c (D). a gt c gt b (iv). (a). NH_(3) , (b). MeNH_(2) , (c). Me_(2)NH , (d). Me_(2)N (A). a lt b lt c lt d (B). d lt a lt c lt b (C). d gt a gt b gt c (D). a gt d gt c gt b

Name the species that will be isoelectronic with the following atoms or ions. (a) Ca^(2+) , (b) Ne , (c ) Cl^(ɵ) ,(d) Rb^(o+)

Calculate the EA of O atom to O^(2-) ion from the following data: i. Delta_(f)H^(ɵ)[MgO(s)] = -600 kJ mol^(-1) ii. Delta_(u)H^(ɵ) [MgO(s)] = -3860 kJ mol^(-1) iii. IE_(1) + IE_(2) of Mg(g) = 2170 kJ mol^(-1) iv. Delta_("diss")H^(ɵ) of Mg(s) = + 494 kJ mol^(-1) v. Delta_("sub")H^(ɵ) of Mg(s) = +150 kJ mol^(-1)

How many of the following energies are involved in the transformation of Na(s) rarr Na^(o+) (aq) ? (a) 1 E , (b) Delta_("sub")H^(ɵ) , ( c) Delta_("diss")H^(ɵ) , (d ) Delta_("hyd")H^(ɵ) (e) Delta_(u)H^(ɵ)

Arrange the order of decreasing/increasing properties given below: 1. Decreasing order of atomic and ionic radii a. Mg^(2+), O^(2-), Na^(o+), F^(ɵ) b. Cl^(ɵ), S^(2-), Ca^(2+), Ar c. N^(3-), Na^(o+), F^(ɵ), O^(2-), Mg^(2+) d. S, O, Se, C e. B, Be, Li, Na f. Li^(o+), Na^(o+), K^(o+), Rb^(o+), Cs^(o+) (in aqueous solution) g. Cl^(7+), Si^(4+), Mg^(2+), Na^(o+) h. H^(o+), Li, H^(ɵ) i. O^(2-), B^(3+), Li^(o+), F^(ɵ) j. Br^(ɵ) , I, I^(ɵ), I^(o+) k. I^(ɵ), I, I^(o+) l. K^(o+), Ca^(2+), Ti^(3+), Ti^(4+) m. Ce, Sn, Yb, Lu n. F, F^(ɵ), O, O^(2-) o. Ar, Br, Ca^(2+), Mg^(2+)