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Assertion (A) : 4Be does not form covale...

Assertion (A) : `_4Be` does not form covalent bonds.
Reason (R): Electronic configuration of Be is `1s^2` `2s^2` and it has no unpaired electrons.

A

`1`. A and R are true and A is supported by R.

B

`2`. A and R are true but A is not supported by R.

C

`3`. A is true but R is false.

D

`4`. A is false but R is true.

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VGS PUBLICATION-BRILLIANT-CHEMICAL BONDING-EXERCISE
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  5. Why do ionic compounds have high melting points?

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  8. Guess the atom with single valency and it can form ionic bond with chl...

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  9. Guess the atom with two valence electrons and it does not form any bon...

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  10. By losing an electron a neutral sodium atom becomes:

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  11. Which of the following can gain 2 electrons ?

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  12. What happens if a chlorine atom attracts a sodium atom ?i) They form i...

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  13. Predict the atom which can loss three electrons

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  14. If there is no lone pair electrons in H2O molecule, the angle of H2O i...

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  17. Nacl : ionic :: :covalent.

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