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An element M has an atomic mass 19 and a...

An element M has an atomic mass 19 and atomic number 9. Its ion is represented by

A

`M^(+)`

B

`M^(2+)`

C

`M^(-)`

D

`M^(2-)`

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-VIIA GROUP ELEMENTS -OBJECTIVE EXERCISE - 1 (GENERAL CHARACTERISTICS)
  1. Ionisation potential of fluorine is abnormally high. It is due to

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  2. The elements with the highest electron affinity and electronegativity ...

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  3. An element M has an atomic mass 19 and atomic number 9. Its ion is rep...

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  4. General oxidation states of halogens are

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  5. Which one of the following elements can show both positive and negativ...

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  6. The maximum oxidation state that can be exhibited by a halogen in its ...

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  7. Which one of the following elements show different oxidation states?

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  8. Enthalpy of dissociation is low for

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  9. F2 absorbs ........ portion of light and appear yellow and I2 absorbs ...

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  10. In AX3 type of molecule if 'A' undergoes sp^3 d^2 hybridisation, then ...

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  11. The hybridization in interhalogen compound AX7 is

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  12. The strongest oxidising agent among the following is

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  13. The order of reactivity of halogens with Hydrogen is

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  14. Which of the following is incorrect with respect to property indicated...

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  15. Which halogen has highest ionisation potential

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  16. The electron affinity values(in KJ "mole"^(-1)) of three halogens x, y...

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  17. Which of the following is most volatile

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  18. Correct order of boiling points of hydrogen halides is

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  19. One gas bleaches the colour of flowers by reduction and another gas by...

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  20. In the reaction 2Br^(-) + X2 to Br2 + 2X^(-) ,X2 is

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