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Formaldehyde polymerises to give...

Formaldehyde polymerises to give

A

Trioxane

B

Para formaldehyde

C

Formalin

D

CO and `H_(2)`.

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The correct Answer is:
B
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MODERN PUBLICATION-ALDEHYDES , KETONES AND CARBOXYLIC ACIDS-Multiple Choice Questions ( Level - II )
  1. The compound which can form intramolecular hydrogen bond is :

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  2. Which of the following is hypnotic ?

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  3. Formaldehyde polymerises to give

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  4. In the reaction , HC-=CHunderset(H(2)SO(4))overset(HgSO(4))toXoverset(...

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  5. In the reaction , C(6)H(5)CH=CHCHOoverset(X)toC(6)H(5)CH=CHCH(2)OH,X i...

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  6. In the reaction , the product X is :

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  7. In the reaction , 2- Butanone overset(CN^(-),H^(+))toAoverset(H(2)S...

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  8. In the reaction, [A]+CH(3)CHOunderset("Heat")overset(dil , NaOH)toCH(2...

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  9. In the reaction , the product C is :

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  10. The reaction, C(6)H(5)CHO+(CH(3)CO)(2)Ounderset(C(6)H(5)Ch=CHCOOH)over...

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  11. In the reaction , CH(3)CHO+HCNtoCH(3)CH(OH)CN a chiral centre is produ...

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  12. In the reaction , CH(3)CHOoverset(dilNaOH)toAunderset("Heat")overset(H...

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  13. An organic compound X on treatment with acidified K(2)Cr(2)O(7) gives ...

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  14. The product C in the following sequence of chemical reaction is : CH(3...

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  15. Which of the following can give cannizzaro's reaction with a base

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  16. Which reagent can be used to convert benzoyl chloride to benzaldehyde ...

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  17. The prducts of the reaction of HCHO and Ph CHO in the presence of conc...

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  18. In the Cannizzaro 's reaction given below, 2PhCHOoverset(OH^(-))toPhCH...

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  19. In the reaction , D is :

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  20. An organic compound , C(3)H(6)O does not react with 2, -4 - dinitrophe...

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