Choose the correct statement(s) :...

Choose the correct statement(s) :

All quantities may be represented dimensionally in terms of the base quantities.

A base quantity cannot be represented dimensionally in terms of the rest of the base quantities.

The dimension of a base quantity in other base quantities is always zero.

The dimension of a derived quantity is never zero in any base quantity

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The correct Answer is:

A, B, C

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Choose the correct statements(s):

In general more the ionisation energy more will be electronegativity.

Electronegativity increase means metallic character increases.

In general lower will be the ionisation energy, easier will be to remove electron.

Electron affinity of `S` is less than that of `CI`.

All the noble gases have completely filled `ns^(2)np^(6)` electronic configuration in their valance shell

First ionisation enthalpy of molecular oxygen (1170 kJ `mol^(-1)`) is almost identical with that of xenon (1175 kJ `mol^(-1)`)

Both `Xe^(+)PtF_(6)^(-)` and `O_(2)^(+)PtF_(6)^(-)`

None of the above

Ionisation enthalpy decrease down the group

Density increases down the group

M.P (except He) increases down the group

B.P increase down the group