Which of the following bonds is most polar? B-H O-H P-H Al-H C-H Which of the fo

Question

Which of the following bonds is most polar? B-H O-H P-H Al-H C-H Which of the following statements regarding allotropes is NOT correct? Allotropes of an element have different structures. Allotropes of an element have different chemical and physical properties. Not all elements have multiple allotropes. Oxygen and ozone are examples of allotropes. Carbon dioxide and carbon monoxide are examples of allotropes. The formal charge of an atom in a Lewis structure is defined as the difference between the number of bonding electrons and nonbonding electrons assigned to an atom. the difference between the number of valence electrons in a free atom and the total number of valence electrons in the molecule. the difference between the number of valence electrons in a free atom and the number of electrons assigned to it in a Lewis structure. the difference between the number of valence electrons in a free atom and the number of bonding electrons assigned to it. the differ

Explanation / Answer

Answer : d Al-H is most polar because Al is metal and H is non metal.
Answer : e since CO2 and CO are compounds of different elements.
Answer : b
Answer : e since the H atom size is small and it can form strong bond compare to others.
Answer : C Since C atom is attached to 3H atoms and 1 Cl atom.
Answer : c molar mass = (1*31) + (5*35.5) = 208.24 g/mol

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