HI is stronger acid than HF. Explain. - Vidyadip

Question

HI is stronger acid than HF. Explain.

✓

Answer

This is due to the fact that the bond strength (or bond dissociation energy) of H-I bond is minimum and that of HCl is maximum and hence HI is capable of giving I ions very easily. Thus the tendency to donate the electron pair (nucleophilicity) to carbon of halide decreases in the order $ I^{-} > Br^{-} > Cl^{-} $, the order of reactivity of halogen acids decreases in the same order $ HI > HBr > HCl $.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from p- Block Elements→p- Block Elements — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Define the following terms:

Limiting molar conductivity.
Fuel cell.

Why does ethylene glycol is mixed with water to be used in car radiator during winter season?

What is meant by elevation in boiling point? Why is it a colligative property?

Calculate the $Zn-Cu$ cell potential. $\#\#\#$ Calculate standard cell potential of Daniell cell.

Give importance of aldehydes, ketones and carboxylic acids,

Draw the geometry and write the configuration of the geometric iosmers of $\left[ Pt \left( H _2 O \right)_2 Br _2\right]$.

The depression in freezing point of water observed for the same amount of acetic acid, trichloroacetic acid and trifluoroacetic acid increases in the order given above. Explain briefly.

Transition elements show high melting points. Why?

The following data were obtained during the first order thermal decomposition of $SO_2Cl_2$ at a constant volume:
$SO_2Cl_2(g) \rightarrow SO_2(g) + Cl_2(g)$

Experiment	$Time/s^{–1}$	Total pressure/atm
$1$	$0$	$0.4$
$2$	$100$	$0.7$

Calculate the rate constant.
$($Given: $\log4 = 0.6021, \log2 = 0.3010).$

Using the standard electrode potentials given in Table $3.1,$ predict if the reaction between the following is feasible$: Ag^+ (aq)$ and $Cu(s)$