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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

Draw structure of Chlorine pentafluoride


Compare the oxidizing action of F2 and Cl2 by considering parameters such as bond dissociation enthalpy, electron gain enthalpy and hydration enthalpy.


Account for the following :

Acidic character increases from HF to HI.


F2 has lower bond dissociation enthalpy than Cl2. Why?


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

(CH3)3 C – Cl or CH3 – Cl


Why are halogens coloured?


Write the reactions of F2 with water.


Complete the following equations:

 KMnO4 

 


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


Which of the following is isoelectronic pair?


Which of the following statements are true?

(i) Only type of interactions between particles of noble gases are due to weak dispersion forces.

(ii) Ionisation enthalpy of molecular oxygen is very close to that of xenon.

(iii) Hydrolysis of XeF6 is a redox reaction.

(iv) Xenon fluorides are not reactive.


Give reason to explain why ClF3 exists but FCl3 does not exist.


Solubility of iodine in water may be increase by adding


The reaction \[\ce{3ClO- (aq) -> ClO3- (aq) + 2Cl- (aq) + 2Cl- (aq)}\] is an example of


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.


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

MF, MCl, MBr, MI (ionic character)


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