Purines and pyrimidines are_________________?

Related Mcqs:

1. Purines and pyrimidines are__________________?

   A. Enzymes B. Nitrogenous bases C. Carbohydrates D. Lipids...

2. When an atom absorbs energy the lines in the spectrum will appear which are_________________?

   A. Brighter B. Darker C. Colourless D. Hard to locate...

3. Three elements needed for the healthy growth of plants are_________________?

   A. N P K B. N K C C. N S P D. N Ca P...

4. Biocatalytical proteins are_________________?

   A. Enzymes B. Substrate C. Lipids D. any of above...

5. Co-enzymes are_________________?

   A. Non proteineous B. Proteineous C. sugars D. lipids...

6. The common thing in phthalic acid and oxalic acid is that both are_________________?

   A. Aromatic B. Dicarboxylic C. Hydrocarbons D. Strong acids...

7. Molecular mass of water (18g) means__________________?

   A. 1-mole molecules of water B. 1-gram molecule of water C. 3-gram atoms D. all...

8. Molecular ions are formed by passing______________________?

   A. High energy electron beam B. ? – particle C. X-rays D. All of the above...

9. The hardest of the following solids is__________________?

   A. sodium B. diamond C. graphite D. magnesium...

10. The unit of molality is__________________?

    A. moles dm-3 B. moles kg-1 C. gram dm-3 D. none...