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Distinguish between buta-1,3-diene and ...

Distinguish between buta-1,3-diene and but-1-yne ?

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But-1-yne `(CH_3CH_2C-=CH)` reacts with ammoniacal cuprous chloride solution ot give a red precipitate. Buta-1,3-diene , however does not respond to this test.
`CH_3CH_2C-=Choverset(Cu_2Cl_2)underset(NH_4OH)to CH_3CH_2C-=C""Cudarr("red")`
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CHHAYA PUBLICATION-HYDROCARBONS-(QUESTION-ANSWER ZONE FOR BOARD EXAMINATION (Short answer type)
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  2. Write the IUPAC names of the products obtained when buta-1,3-diene rea...

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  3. Distinguish between buta-1,3-diene and but-1-yne ?

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  4. Prove that benzene is insoluble in water and is lighter than water.

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  5. Why does benzene burn with a sooty flame ?

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  6. Explain why it is very difficult to introduce the third -NO2 group in...

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  7. Nitration of aniline with 98% H2SO4 and conc. HNO3 occurs very slow...

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  8. Explain why nitrobenzene (C6H5-NO2) is used as a solvent in the Friede...

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  9. Are all the six carbon -carbon bonds of benzene molecule equal in leng...

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  10. Heats of hydrogenation of benzene and cyclohexane are -49.8 and -28.6 ...

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  11. Activating groups are ortho-/para-directing ,while the deactivating gr...

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  12. How will you remove traces of aniline present in benzene ?

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  13. How can traces of phenol present in a sample of benzene be removed ?

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  14. Why groups like -CHO,-NO2,-B(OR)3,-overset(oplus)PBr3 and -overset(opl...

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  15. Arrange the compounds in increasing order of their rate of nitration a...

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  16. How will you distinguish between benzene and hexane by a simple test i...

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  17. Aniline does not undergo Friedel-Crafts reaction, though it contains a...

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  18. A mixture of benzene and bromine solution remains unchanged for indefi...

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  19. How many trisubstituted benzene may be obtained from o-,m-and p-chloro...

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  20. 1 C5H(12) and 2 C8 H(18) are two alkanes which form one monochloride e...

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