Question

In which of the following compounds, H-bond exist?
I) HF II)NH3. III)H2O IV)HI
Select the correct option.
(1) Only I and II
(2) Only III and IV
(3) I,IIandIII
(4) I, III and I​

Answer 1

Explanation:

hf and h2o are the 2 compounds in which h bond exist

Answer 2

Answer:

The Correct Option will Be 3) I, II, and III

i, e Hydrogen Florine Bond, NH3 ( Ammonia) and H2O that's water these all compounds exists H-Bond

Explanation:

Those elements which Have High Electronegativity

does exist and show Hydrogen Bond.

in HF, Florine have high Electronegativity of 4 that's why this element exist Hydrogen bond.

in NH3 Ammonia Nitrogen have high Electronegativity, of 3.5 that's why this compound exist HYDROGEN Bond.

H2O i, e water Oxygen have high Electronegativity and because of that it this compound exist hydrogen Bond.

and in HI, Iodine don't have high Electronegativity

thati is why it doesn't exist hydrogen Bond in the compound.

therefore HF, NH3 And H2O compounds exist hydrogen bond.