NEET2016ChemistryChemical Bonding and Molecular StructureActual
Consider the molecules C H 4 ,   N H 3 and H 2 O . Which of the given statements is false?
Options
- AThe H - C - H bond angle in C H 4 , the H - N - H bond angle in N H 3 , and the H - O - H bond angle in H 2 O
- BThe H - O - H bond angle in H 2 O is larger than the H - C - H bond angle in C H 4 .
- CThe H - O - H bond angle in H 2 O is smaller than the H - N - H bond angle in N H 3 .
- DThe H - C - H bond angle in C H 4 is larger than the H - N - H bond angle in N H 3 .
Correct answer
B. The H - O - H bond angle in H 2 O is larger than the H - C - H bond angle in C H 4 .
Step-by-step solution
Bond Angle Molecule 104.5 o H 2 O 107 o N H 3 109 o 28 ′ C H 4 All the molecules are s p 3 hybridized and Bond angle of H 2 O is smaller than N H 3 because in H 2 O two lone pairs are present due to which there will be more lone pair-lone pair repulsion while in NH 3 ,only one lone pair is present, so lone pair-bond pair repulsion is present only.