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Acetylene can be prepared from...

Acetylene can be prepared from

A

Potassium fumarate

B

Calcium carbide

C

Ethylene bromide

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
D

`CaC_2 + 2H_2O rarr Ca(OH)_2 + CH -=CH`
`underset(Br)underset(|)(CH_2)-underset(Br)underset(|)(CH_2) + 2KOH rarr CH - =CH + 2 KBr + 2H_2O`
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ERRORLESS-HYDROCARBONS-NCERT BASED QUESTION (ALKYNE)
  1. Acetylenic hydrocarbons are acidic because

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  2. Lewisite, a chemical weapon, is prepared by the reaction of acetylene ...

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  3. Acetylene can be prepared from

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  4. A compound is treated with NaNH(2) to give sodium salt. Identify the c...

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  5. KMnO4 will oxidised acetylene to

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  6. Which of the following reagents distinguish ethylene from acetylene?

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  7. If acetylene is passed through an electric arc in the atmosphere of ni...

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  8. Acetylene is prepared industrially by passing electric discharge throu...

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  9. When acetylene is passed into dilute sulphuric acid containing Hg^"2+...

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  10. Acetylene adds on to HCN gives

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  11. What happens when a mixture of acetylene and hydrogen is passed over h...

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  12. Catalyst used in dimerisation of acetylene to prepare chloroprene is

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  13. Which of the following will be the final product when C2H2 reacts with...

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  14. When acetylene is treated with very dil. HCl in the presence of HgCl2,...

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  15. Excess of CH(3)COOH is reacted with CH-=CH in presence of Hg^(2+), the...

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  16. Which of these will not react with acetylene?

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  17. What is the product formed when acetylene reacts with hypochlorous aci...

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  18. CH-=CH underset(H2SO4)overset(HgSO4)to underset(H2O)overset(CH3MgBr)to...

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  19. Which pair does not represent a cyclic compound of the formula C(4)H(6...

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  20. Hydrocarbon C6H6 decolourise Br2 water and give ppt. with ammoniacal A...

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