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Which of the following elements does not...

Which of the following elements does not show allotropy?

A

Nitrogen

B

Bismuth

C

Antimony

D

Arsenic

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The correct Answer is:
A
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ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-I)(OBJECTIVE QUESTIONS)(THE CORRECT ALTERNATIVE FROM THE CHOICES GIVEN : )
  1. On heating with concentrated NaOH solution in an inert atmosphere of C...

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  2. Which of the following acids forms three series of salts?

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  3. Strong reducing behaviour of H(3)PO(2) is due to

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  4. On heating, lead nitrate forms oxides of nitrogen and lead. The oxides...

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  5. Which of the following elements does not show allotropy?

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  6. Which of the following statements is wrong?

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  7. Maximum covalency of nitrogen is

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  8. A brown ring is formed in the ring test for NO(3)^(-) ion. It is due t...

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  9. Elements of group - 15 compounds in +5 oxidation state. However, bismu...

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  10. On heating ammonium dichromate and barium azide separately we get

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  11. In the preparation of HNO(3), we get NO gas by catalytic oxidation of ...

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  12. The oxidation state of central atom in the anion of compound NaH(2)PO(...

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  13. Which of the following is not tetrahedral in shape?

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  14. Which of the following are peroxoacids of sulphur ?

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  15. Hot cone. H(2)SO(4) acts as moderately strong oxidising agent. It oxid...

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  16. A black compound of manganese reacts with a halogen acid to give green...

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  17. In the preparation of compounds of Xe, Bartlett had taken O(2)^(+)PtF(...

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  18. In solid state, PCI5, is a

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  19. Reduction potentials of some ions are given below. Arrange them in dec...

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  20. Which of the following is isoelectronic pair ?

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