The stability of hydrogen halides is in the order
`HF>HI>HBr>HCl`
`HI>HBr>HCl>HF`
`HF>HCl>HBr>HI`
`HCl>HBr>HI>HF`

Order of reactivity of halogen acids towards an alcohol is: (HCl,HBr,HI)

The dipole moment of hydrogen halides decreases form HF to HI. Explain this trend.

HF has highest boiling point among hydrogen halides, because it has:

HF has highest boiling point among hydrogen halides, because it has:

Assertion Boiling point of halogen acids are in the order HF gtHBr gt HCl gt HI Reasoning Electronegativities are in the order F gt Cl gt Br gt I .

The increasing order of reduction of alkyl halides with zinc and dilute HCl is

The increasing order of reduction of alkyl halides with zinc and dilute HCl is

Arrange the following acids in the decreasing order of their acid strength: HF, HCl, HBr, HI

Give the decreasing order of dipole moments of HF,HCI,HBr , and HI .

Why special methods are employed for the preparation of HBr and HI ?