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The bases that are common in both DNA an...

The bases that are common in both DNA and RNA are :

A

Adenine,Guanine and Cytosine

B

Adenine, Guanine and Thymine

C

Adenine, Uracil and Cytosine

D

Guanine, Uracil and Thymine

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XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2022 TERM 1 SET 2-SECTION -B
  1. The vapour pressure of a dilute aqueous solution of glucose is 750mmHg...

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  2. The bases that are common in both DNA and RNA are :

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  3. A compound (X) with the molecular formula C(3)H(8)O can be oxidized to...

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  4. Which reagent is required for one step conversion of benzene diazonium...

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  5. Number of lone pairs of electrons on Xe atoms in XeF(2), XeF(4), XeF(6...

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  6. Form of sulphur which shows paramagnetic behaviour

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  7. An element with density 3 g cm^(-3) forms a bcc lattice with edge leng...

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  8. In the following reaction : CH(3)-Br underset("dry ether") overset(...

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  9. Which of the following has greatest reducing power?

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  10. The freezing point of a 0.2 molal solution of a non-electrolyte in wat...

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  11. Calculate the packing efficiency for bcc lattice.

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  12. NO2 gas dimerises because :

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  13. A compound forms hcp structure. The number of tetrahedral voids in 0.5...

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  14. XeF2 on reaction with PF5 forms :

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  15. Arrange the following compounds in decreasing order of their acidic ch...

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  16. Which of the following compound undergoes racemistation on hydrolysis ...

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  17. Which of the following is not true ?

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  18. The IUPAC name of isobutyl bromide is :

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  19. Chlorobenzene when treated with sodium in dry ether gives Diphenyl . I...

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  20. Assertion (A) : NH3 is less basic than PH3 Reason (R) : Nitrogen is...

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