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In thiophene, the positions at which ele...

In thiophene, the positions at which electron density will be maximum are

A

2, 3

B

3, 4

C

2, 5

D

2, 4

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AAKASH INSTITUTE ENGLISH-TEST 4-EXAMPLE
  1. Complete the following reaction

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  2. Which of the following has highest —I effect?

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  3. In thiophene, the positions at which electron density will be maximum...

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  4. Geometrical isomerism is not possible in

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  5. The index of hydrogen deficiency in C20H20O2 is

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  6. Which of the following is most stable conformer?

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  7. The correct order of basicity among the following is

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  8. The mesomeric effects of the groups , respectively is

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  9. In the given Newmann's projection formula of 2,2-Dimethyl butane, A an...

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  10. The acid which does not give isopentane on decarboxylation with soda l...

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  11. Calculate the percentage of free volume available in 1 mole gaseous wa...

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  12. For the reaction C(s)+CO(2)(g) hArr 2CO(g), the partial pressure of CO...

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  13. For the reaction C(s)+CO(2)(g) hArr 2CO(g), the partial pressure of CO...

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  14. For the reaction C(s)+CO(2)(g) hArr 2CO(g), the partial pressure of CO...

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  15. At 27^(@)C, K(p) value for the reaction CaCO(3)(s) hArr CaO (s) + CO...

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  16. The term "Retardation factor" is related to the

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  17. Which of the following sets of elements can be detected by Lassaigne's...

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  18. In Carius method, 0.18 gram of an organic compound gave 0.11 gram of A...

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  19. The number of moles of sodium acetate required to produce 112 ml of et...

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  20. Which of the following has highest boiling point?

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