Advertisements
Advertisements
प्रश्न
Arrange the following in the increasing order of the property mentioned:
\[\ce{HF}\], \[\ce{HCl}\], \[\ce{HBr}\], \[\ce{HI}\] (thermal stability)
Advertisements
उत्तर
Thermal stability of hydrogen halides increases in the following order:
\[\ce{HI < HBr < HCl < HF}\]
It is due to the decrease in bond dissociation enthalpy of \[\ce{H - X}\] bond down the group.
APPEARS IN
संबंधित प्रश्न
Select appropriate answers for the following.
BrCl reacts with water to form _______.
Answer the following.
Write the order of the thermal stability of the hydrides of group 16 elements.
Answer the following.
What is the action of bromine on magnesium metal?
Write the names of allotropic forms of selenium.
The pKa value of HCl is −7.0 and that of HI is −10.0. Which is the stronger acid?
Complete the following.
\[\ce{XeOF4 + H2O -> \underline{}\underline{}\underline{}\underline{} + HF}\]
Match the following:
| A | B |
| XeOF2 | Xenon trioxydifluoride |
| XeO2F2 | Xenon monooxydifluoride |
| XeO3F2 | Xenon dioxytetrafluoride |
| XeO2F4 | Xenon dioxydifluoride |
What is the oxidation state of xenon in the following compounds?
XeOF4, XeO3, XeF6, XeF4, XeF2.
Acidic strength of halogen acids increases in the order of _______.
The halide that undergoes sp3d hybridisation is ____________.
Which of the following statements are TRUE?
The oxidation state of halogen atom in perhalic acid and hypohalous acid are respectively ____________.
Which is the lowest oxidation state possessed by chlorine in it's oxyacids?
Which of the following oxyacid of chlorine is thermally least stable?
Which among the following gases is used to produce and sustain powerful super conducting magnets for NMR and MRI systems?
What is the oxidation state of sulphur in oil of vitriol?
What is the action of selenium on magnesium metal?
What is the highest oxidation state exhibited by group 17 elements?
Consider the following reaction.
I. \[\ce{Na2B4O7 ->[760° C] {...A...} + B2O3}\]
II. \[\ce{Si + KOH + H2O ->{...B...} + H2\uparrow}\]
III. \[\ce{P2O5 + HNO3 -> HPO3 + {...C...}}\]
IV. \[\ce{NH3 + Cl2(excess) -> {...D...} + HCl}\]
Identify the missing products of the given reactions.
Arrange the halogen acids in the decreasing order of acidic strength.
What are the allotropes of oxygen?
What is the action of hydrochloric acid on the following?
NH3
What is the action of hydrochloric acid on the following?
Na2CO3
