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Hydrogen has the tendency to gain one el...

Hydrogen has the tendency to gain one election to acquire helium configuration, in this respect, it resembles:

A

Halogen

B

Alkali metals

C

Chalcogens

D

Alkaline earth metals

Text Solution

Verified by Experts

The correct Answer is:
A
`underset(1s^(1))(H)+e^(-)rarrunderset(1s^(2)or [He]^(2))(H^(-))`
`underset([He]^(2)2s^(2)2p^(5))(F)+e^(-)rarrunderset([He]^(2)2s^(2)2p^(6)or [Ne]^(10))(F^(-))`
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A2Z-HYDROGEN-Section D - Chapter End Test
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  2. Polyphosphates are used for softening agents because they

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  3. The critical temperature of water is higher than that of O(2) because ...

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  4. One mole of calciium phosphide on reaction with excess water gives

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  5. When zeolite, which is hydrated sodium aluminate silicate, is treated ...

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  6. Pick the odd one out

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  7. Hydrogen gas will not reduce:

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  8. HCl is added to following oxides. Which one would give H(2)O(2) ?

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  9. Which of the following pairs will not produce dihydrogen gas ?

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  10. The amount of H(2)O(2) present in 1L of 1.5 NH(2)O(2) solution is

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  11. Hydrogen is evolved the action of cold dilute HNO(3) on :

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  12. Hydrogen can behave as a metal

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  13. D(2)O is preferred to H(2)O, as a moderator, in nuclear reactors becau...

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  14. Out of the two allotropic forms of dihydrogen, the form with lesser mo...

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  15. Saline hydrides react explosively with water, such fires can be exting...

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  16. When temporary hard water containing Mg(HCO(3))(2) is boiled, the ppt....

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  17. Permanent hardness due to Mg^(2+) ions is best removed by

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  18. Plumbosolvency is a health hazard in the transporatatino of

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  19. Hardness producing salt, whose solubility in water decreases with rise...

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  20. A sample of water containing some dissolved table sugar and common sal...

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  21. Water obtained by purification with organic ion exchange resins is

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