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Set of elements having one electron in t...

Set of elements having one electron in their valence shell is `:-`

A

`Cl,Br,I`

B

`Na,Mg,Al`

C

`B,Al,Ga`

D

`K,Rb,Cs`

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The correct Answer is:
D
`N//A`
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ALLEN-TEST PAPER-Exercise (chemistry)
  1. The radius of isoelectronic series :-

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  2. In which of the following compounds cation and anion size ratio is min...

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  3. Set of elements having one electron in their valence shell is :-

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  4. A neutral atom (A) is converted to (A) by the following process Aove...

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  5. Which of the following processes involves absorption of energy?

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  6. The electron affinity of

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  7. Select correct diagram about the acidic strength of oxides :-

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  8. In which of the following pairs both the molecules are non existing?

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  9. Substance which is not required in Solvay process :-

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  10. Which of the following does not produce any gaseous product when react...

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  11. CaCO(3)overset(Delta)rarrResidue+gas. Residue when dissolves in water,...

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  12. Which of the following carbides librates methane gas by the action of ...

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  13. Hard water does not contain :-

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  14. Given type of silicones are called :-

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  15. Which of the following does not form alums?

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  16. Which of the following is incorrect about borax?

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  17. Which of the following statement is wrong regarding carbon mono-oxide.

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  18. Which set contain no ionic species?

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  19. Which of the following options represent the change in the bond angle ...

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  20. Select correct statement about CH(4)

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