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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Bond dissociation enthalpy of E–H (E = element) bonds is given below. Which of the compounds will act as the strongest reducing agent? Compound NH3 PH3 AsH3 SbH3 Δdiss (E–H)/kJ mol–1 389 322 297 255

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प्रश्न

Bond dissociation enthalpy of E–H (E = element) bonds is given below. Which of the compounds will act as the strongest reducing agent?

Compound \[\ce{NH3}\] \[\ce{PH3}\] \[\ce{AsH3}\] \[\ce{SbH3}\]
Δdiss (E – H)/kJ mol–1 389 322 297 255

पर्याय

  • \[\ce{NH3}\]

  • \[\ce{PH3}\]

  • \[\ce{AsH3}\]

  • \[\ce{SbH3}\]

MCQ
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उत्तर

\[\ce{SbH3}\]

Explanation:

\[\ce{SbH3}\] will act as strongest reducing agent due to minimum bond enthalpy.

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पाठ 7: The p-block Elements - Multiple Choice Questions (Type - I) [पृष्ठ ९१]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 7 The p-block Elements
Multiple Choice Questions (Type - I) | Q 7 | पृष्ठ ९१

संबंधित प्रश्‍न

Iodine exists as

  • polar molecular solid
  • ionic solid
  • nonpolar molecular solid
  • hydrogen bonded molecular solid

Account for the following :

Acidic character increases from HF to HI.


Which halogen compound in each of the following pairs will react faster in SN2 reaction

(CH3)3 C – Cl or CH3 – Cl


Write two uses of ClO2.


Write the reactions of F2 with water.


With what neutral molecule is ClO isoelectronic? Is that molecule a Lewis base?


Complete chemical reactions are:Cl2 + H2O →


Select the correct alternative from the choices given :
The correct order of increasing acidic strength of the oxoacids of chlorine is: 


 Cl2 acts as a bleaching agent. 


Fluorine differs from the rest of the halogens in some of its properties. This is due to ____________.


Which is the strongest acid in the following:


Which of the following pairs of ions are isoelectronic and isostructural?


In solid state \[\ce{PCl5}\] is a ______.


Statement I: Acid strength increases in the order given as HF << HCl << HBr << HI.

Statement II: As the size of the elements F, Cl, Br, and I increase down the group, the bond strength of HF, HCl, HBr, and HI decreases and so the acid strength increases.

In the light of the above statements, choose the correct answer from the options given below.


Statement I: Acid strength increases in the order given as HF << HCl << HBr << HI.

Statement II: As the size of the elements F, Cl, Br, and I increase down the group, the bond strength of HF, HCl, HBr and HI decreases and so the acid strength increases.

In the light of the above statements, choose the correct answer from the options given below.


Give a reason for the following:

Mn+2 compounds are more stable than Fe+2 compounds.


Arrange the following in the increasing order of the property mentioned:

MF, MCl, MBr, MI (ionic character)


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