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A gas which exists in three allotropic f...

A gas which exists in three allotropic forms `alpha,beta` and `gamma` is :

A

`SO_(2)`

B

`SO_(3)`

C

`CO_(2)`

D

`NH_(3)`

Text Solution

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The correct Answer is:
B
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MOTION-P-BLOCK ELEMENTS-Exercise - 1 Objective Problems | JEE Main
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  3. NaH(2)PO(4)overset(230^(@)C)(to)Na(3)(P(3)O(9))overset(638^(@)C)(to)(N...

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  6. The structures of O(3) and N(3)^(-) are:

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  7. When conc. H(2)SO(4) was teated with K(4)[Fe(CN)(6)], CO gas was evolv...

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  8. (A) +O(2)toX+Y+Z (Organic compound) Compound (A) is pure form does n...

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  11. There is no S-S bond in

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  13. Which is incorrectly matched?

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  14. When chlorine water is added to an aqueous solution of potassium halid...

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  15. The correct order of acid strength of oxyacids of chlorine is

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  16. Concentrated HNO(3) reacts with iodine to give:

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  17. Concentrated H(2)SO(4) cannot be used to prepare HBr from NaBr , becau...

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  18. When chlorine reacts with a gas X, an explosive inorganic compound Y i...

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  19. Which of the following is the correct order of acidic strength ?

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