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CaCO(3) overset(Delta)rarr CaO +CO2 Ca...

`CaCO_(3) overset(Delta)rarr CaO +CO_2`
`CaO+3C rarr CaC_(2) +CO`
`CaC_(2) +2 H_(2)O rarr Ca (OH)_(2) +C_(2) H_(2)`
The weight of `CaCO_(3)` needed for the preparation of 2.24 lit of Acetylene gas under S.T.P conditions is

A

10 g

B

20 g

C

5 g

D

2 g

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-REVISION EXERCISE -AROMATIC HYDROCABONS
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  2. In which of the following reactions , aromatic characters is retained ...

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  3. CaCO(3) overset(Delta)rarr CaO +CO2 CaO+3C rarr CaC(2) +CO CaC(2) ...

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  5. C6H6 easily shown

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  6. The correct arrangement for decreasing order of electrophilic Substitu...

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  8. What 'X' in the following reaction ? C(6)H(5) -C-=C-H overset(Hg^(+...

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  9. Among the following compounds, which are not aromatic ?

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  10. Ozonolysis of one mole of benzene gives

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  11. Ethyl benzene with Br(2) in the presence of FeBr(3) gives

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  12. Name of

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  13. n - Butyl benzene on oxidation with KMnO(4) gives

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  14. Which of the following is correct regarding aromatic nature ? A) Be...

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  15. Which of the following is not an aromatic compound ?

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  16. Regarding Benzene some statements are given A) It is aromatic B) I...

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  17. Sodium benzoate gives Benzene on being heated with 'X'. Phenol gives B...

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  18. The major product in the reaction of benzene with n-propyl chloride in...

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  19. Cyclohexene adds one mole of H2, where the enthalpy of hydrogenation i...

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  20. Number of delocalised electrons in C6H6 molecule is

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