Choose the correct option among the following pair of statement: I. An external

Question

Choose the correct option among the following pair of statement:

I. An external charge is added to a beaker
of water. It is observed that:

a) Water molecules align with the electric
?eld of the external charge.
b) The external charge induces a molecular
dipole moment for each water molecule.

II. An external charge is added to a beaker
of carbon tetrachloride (CCl4). Carbon tetrachloride is a liquid whose molecules are symmetrical and so are not permanent dipoles, unlike water molecules. It is observed that:

a) Carbon tetrachloride molecules align
with the electric ?eld of the external charge.

b) The external charge induces a molecular
dipole moment for each carbon tetrachloride
molecule.

Here are the options:

1. Ia, IIb
2. Ib, IIb
3. Ib, IIa
4. Ia, IIa

Explanation / Answer

1. Ia, IIb is the correct answer for sure.

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