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प्रश्न
Account for the following :
Acidic character increases from HF to HI.
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उत्तर
The acidic strength of the hydrohalic acids increases from HF to HI because the stability of the acids decreases from HF to HI on account of decrease in bond dissociation enthalpy of H−X bond from HF to HI.
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संबंधित प्रश्न
Fluorine is a stronger oxidising agent than chlorine. Why?
F2 has lower bond dissociation enthalpy than Cl2. Why?
Which halogen compound in the following pair will react faster in SN2 reaction CH3Br or CH3I.
With what neutral molecule is ClO− isoelectronic? Is that molecule a Lewis base?
Complete the following equations:
KMnO4 
Cl2 acts as a bleaching agent.
Which of the following pairs of ions are isoelectronic and isostructural?
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 |
Solubility of iodine in water may be increase by adding
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