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The number of sigma and pi bonds present...

The number of `sigma` and `pi` bonds present in 1-Buten-3-yne are

A

5`sigma` and 5`pi`

B

7`sigma` and 3`pi`

C

8`sigma` and 2`pi`

D

6`sigma` and 4`pi`

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  8. In which block element lanthanoid Contraction observe?

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  9. Name the element having highest electron affinity.

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  10. Which type of property internal energy is?

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  11. Baeyer's reagent is -

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  12. A compound composed of carbon,hydrogen and chlorine contains C = 10.04...

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  14. Explain, why 3f orbital does not exist. Far how many electrons of Cl-a...

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  15. Suggest reasons why the B-F bond length in BF3 (130 Pm) and BF4^- (143...

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  16. How will you convert a mixture of CO and CO2 completely into CO ?

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  17. How will you convert a mixture of CO and CO2 completely into CO ?

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  18. (CH3)3C-Cl, is unreactive, towards SN^2 reaction.Why?

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