Bioinformatics Interview Questions and Answers
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13. An electron emits energy
(a) Because its in orbit
(b) When it jumps from one energy level to another
(c) Electrons are attracted towards the nucleus
(d) The electrostatic force is insufficient to hold the electrons in orbits
(b) When it jumps from one energy level to another
14. How many bonds are present in CO2 molecule?
(a) 1
(b) 2
(c) 0
(d) 4
(d) 4
15. In a balanced chemical equation
(a) Atoms are conserved
(b) Molecules are conserved
(c) Moles are conserved
(d) Reactant and product molecules are preserved
(a) Atoms are conserved
16. How many grams of NaOH will react with 0.2 equivalent of HCl?
(a) 0.59
(b) 0.285
(c) 1.18
(d) none of these
(a) 0.59
17. Which of the following is least acidic
(a) Ortho-cresol
(b) Para-cresol
(c) Phenol
(d) Meta-cresol
(b) Para-cresol
18. In Reimer-Tiemann’s reaction, the reaction intermediate is
(a) Carbene
(b) Dichloro carbene
(c) Carbonion
(d) Carbonium ion
(b) Dichloro carbene
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