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Group 16 element (except polonium ) are ...

Group 16 element (except polonium ) are called chalcogens because

A

these elements , particularly sulphur and oxygen are present in many metallic ores, manily as oxides and sulphides.

B

a large number of acids contain these elements, particularly sulphur and oxygen .

C

these elements manily form anoins.

D

these elements exist in different allotropic forms.

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The correct Answer is:
A
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TARGET PUBLICATION-p-BLOCK ELEMENTS-EVALUATION TEST
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  2. Fluoric acid is .

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  3. Which of the following liberate nitrogen on heating?

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  4. Which of the following is also called as nitrogen sesquioxide?

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  5. Which acid is formed when P2O3 dissolve in water ?

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  6. is used in estimation of iodine number of fats and oils .

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  7. The pi bonds in SO2 molecule arises due to overlap.

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  8. Cl(2) underset("(cold and dilute)")(NaOH) overset(-NaCl)overset(-H(2)O...

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  9. The increasing order of acidity of the following is .

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  10. Which of the following is the most suitable drying agent for ammonia g...

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  11. Which blue liquid is obtained on reacting equimolar amounts of two gas...

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  12. Which one is CORRECT statement ?

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  13. Metal halide which is insoluble in water is

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  14. Which of the following properties does correspond to the order? HI l...

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  15. White phosphorus on reaction with NaOH gives PH(3) as one of the produ...

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  16. Which of the following oxides of notrogen is paramagnetic ?

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  17. In group 15 elements , due to inert pair effect , the stability of o...

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  18. In which of the following reaction V(2)O(5) is used at catalyst ?

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  19. Which of the following is the least volatile ?

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  20. The correct order of the thermal stability of hydrogen halides (H-X) i...

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  21. The order of solubility of noble gases in water is

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