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An element X occurs in short period havi...

An element X occurs in short period having configuration `ns^(2)np^(1)`. The formula and nature of its oxide is:

A

`XO_(3)`, basic

B

`X_(2)O_(3)`, basic

C

`X_(2)O_(3)` acidic

D

`XO_(2)`, acidic

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VMC MODULES ENGLISH-p-BLOCK ELEMENTS-1-LEVEL 1
  1. Which one of the following is the correct statement ?

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  2. Boron halides are

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  3. An element X occurs in short period having configuration ns^(2)np^(1)....

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  4. The structure of diborane (B(2)H(6)) contains :

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  5. BCl(3)+H(2)O rarr X The products fored in the above reaction are

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  6. Aluminium chloride exists as a dimer, Al(2)Cl(6) in solid state as wel...

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  7. Al(4)C(3) is a ionic carbide, named as:

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  8. बोरिक ऐसिड अम्ल है, क्योंकि

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  9. Heating an aqueous solution of aluminium chloride to dryness will give

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  10. The correct order of Lewis acidic strength of boron trihalides :

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  11. In diborane, the two H-B-H angles are nearly

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  12. In group 13, Tl (thalium) shows +1 oxidation state while other members...

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  13. Correct order of bond angles in the given compounds is/are

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  14. The correct order of increasing atomic radii, is :

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  15. Which type of silicate is shown in the given figure ?

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  16. Buckminister-fullerene is a variety of :

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  17. The basic structural unit in silicates is

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  18. On strong heating lead nitrate gives:

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  19. Among the following substituted silanes, the one which will give rise ...

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  20. Identify B in the following H(4)SiO(4) underset(-H(2)O) overset(1000^(...

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