Reason Reason (R): This is because the electronic environment around oxygen is the same even after breakage of one O-H bond.

The oxygen in water has two lone pairs of electrons just like each oxygen in hydrogen peroxide. The decreased bond angle in hydrogen peroxide compared to water (104.5 ∘). about the O − O single bond. The OH bond length is 1.796 a.u., the O …

The enthalpies of formation of O H (g), H (g) and O (g) are 21 k J m o l − 1, 109 k J m o l − 1 and 124 k J m o l − 1. The value of bond enthalpy O − H is View Solution

All the identical bonds in a molecule do not have the same bond enthalpies, e.g., in water (H 2 O), there are two O−H bonds but breaking of first O−H bond, the second O−H bond undergoes some change because of charge. Therefore, in polyatomic molecules average bond enthalpy is used and calculated by dividing total bond dissociation ...

The average O-H bond energy with the help of following data is: (1) 2 H (g) H 2 (g); Δ H = − 435.0 kJ mol − 1 (2) O 2 (g) 2 O (g); Δ H = + 489.6 kJ mol − 1 (3) 1 2 H 2 (g) + 1 2 O 2 (g) O H; Δ H = − 42.09 kJ mol − 1

Assertion : A l (O H) 3 is amphoteric in nature. Reason: Al-O and O-H bonds can be broken with equal ease in A l (O H) 3. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion; Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion; Assertion is correct but Reason is ...

Hydrogen bond is a weak electrostatic force of attraction (van der Waal's attraction) between hydrogen atom and small sized, highly electronegative atoms. It is weaker than covalent bond. O − H bond in water is a covalent bond and its bond energy is greater than that of hydrogen bond.

Using the data provided, calculate the multiple bond energy (k J m o l − 1) of a C ≡ C bond in C 2 H 2. Given that the heat of formation of C 2 H 2 = 225 k J m o l − 1. (take the bond energy of C − H bond as 350 k J m o l − 1): 2 C (s) → 2 C (g) H = 1410 k …

The H − O − H bond angle in the water molecule is 105 o, the H − O bond distance being 0.94 ˚ A. The dipole moment for the molecule is 1.85 D.The charge on the oxygen atom is X × 10 − 10 e s u c m. Find the value of X. Write the answer to the nearest interger.

the observed value of dipole moment of water molecule is found to be 1.84 D .calculate the H-O-H bond angle in H 2 O molecule ,given that the bond moment of O-H BOND is 1.5 D . View Solution Q 5