. Which of the following nuclear reaction is correct?
a. ) N147 +He24 O817+H11
b. Be49+ He2 4C612+n10
c. both
d. none
Correct Option: a
2. Atomic bomb is based on
a. nuclear fission
b. nuclear fusion
c. radioactivity
d. none
Correct Option: a
3. Loss of alpha particle is equal to
a. loss of two protons
b. loss of two neutrons
c. both a and b
d. none
Correct Option: c
4. The manufacturing of hydrogen bomb is based on
a. nuclear fusion
b. nuclear fission
c. spontaneous reaction
d. all
Correct Option: a
5. The instability of nucleus is due to
a. spin nucleus
b. high neutron to proton ratio
c. high proton to neutron ratio
d. electron capture
Correct Option: b
6. Atoms of different elements having same no of neutrons but diff atomic no are
a. Isoelectronic
b. ISOTOPES
c. isotones
d. ISOBARS
Correct Option: c
7. How many nucleons are there U92238
a. 200
b. 238
c. 236
d. 234
Correct Option: b
8. The velocity of beta rays is always equal to
a. velocity of gamma rays
b. VELOCITY OF LIGHT
c. velocity of alpha rays
d. velocity of beta rays
Correct Option: b
9. U238 decays in to thorium 234 by the process of
a. alpha radiations
b. fission
c. fusion
d. all
Correct Option: a
10. Which ray is harmful outside the human body?
a. beta rays
b. gamma rays
c. alpha rays
d. x-rays
Correct Option: c
11. Water is used in nuclear reactor as
a. moderator
b. coolant
c. both a and b
d. none
Correct Option: c
12. The fuel used in atomic reactor is
a. u235
b. u235
c. petrol
d. all
Correct Option: a
13. A mixture that has a uniform composition throughout is called
a. solution
b. saturated solution
c. super saturated solution
d. all
Correct Option: a
14. At a particular temperature, the solution which cannot dissolve more solute is called
a. solution
b. mixture
c. saturated solution
d. unsaturated solution
Correct Option: c
15. In solutions the particles are Solid solutions of metals are called
a. small
b. large
c. invisible
d. visible
Correct Option: c
16. The concentration of a dilute solution is
a. low
b. high
c. same
d. all
Correct Option: a
17. Which one of the following is not a colligative property?
a. osmotic pressure
b. depression in freezing point
c. freezing point
d. elevation in boiling point
Correct Option: c
18. Which of the following is not a volatile substance?
a. acetanlide
b. sugar solution
c. water
d. none
Correct Option: a
19. Which of the following characteristics is not possessed by an ideal solution:
a. there should be no chemical reaction between solute and solvent.
b. volume change on mixing is not equal to zero.
c. obeysRaoult’s law.
d. only very dilute solutions behave ideal solutions.
Correct Option: b
20. Which is favorable for physical adsorption?
a. High T and high P
b. High T and low P
c. ) Low T and high P
d. T and P do not affect
Correct Option: c
21. The molal boiling point constant is the ration of the elevation of boiling point to
a. molality
b. molarity
c. mol fraction
d. all
Correct Option: a
22. Which of the following are the conditions of colligative properties
a. solution should be dilute
b. solution should be non electrolyte
c. solution should be non volatile
d. all
Correct Option: d
23. Which of the following substance do not show continuous solubility curve?
a. AgNO3
b. Na2SO4. 10H2O
c. NACL
d. PbCl2
Correct Option: b
24. high source of energy produced by the sun is the
a. fusion of hydrogen
b. burning of fossils fuels
c. fission of uranium
d. none
Correct Option: a
25. Which has the minimum freezing point?
a. 5 molal
b. 1 molal NaCl
c. 2molal NaCl
d. 3molal
Correct Option: b
26. The component of solution which is in smaller amount is called
a. phase
b. ion
c. solute
d. solvent
Correct Option: c
27. The solution which distills over with change in composition
a. ideal solution
b. non ideal solution
c. azeotrops
d. zeotrops
Correct Option: c
28. Boiling point elevations can be measured by
a. backman method
b. lands burger method
c. both
d. none
Correct Option: a
29. the prefix nano comes from
a. spanich
b. french
c. latin
d. greek
Correct Option: c
30. the diameter of bucky ball is
a. 4nm
b. 1nm
c. 10nm
d. 2nm
Correct Option: b
31. the hardest material found in nature is
a. diamond
b. steel
c. carbon
d. none
Correct Option: a
32. the size of nano-particles is between ___________ nm
a. 1to200
b. 1-100
c. 1 to 10
d. 1to20
Correct Option: b
33. in confining and and growing nanorods CNTs act as
a. source of oxidant
b. support
c. sieve
d. template
Correct Option: d
34. the position of double bond in most of the monosaturated fattyacid is
a. c9`
b. c7
c. C9-C10
d. C6
Correct Option: c
35. IN POLY UNSATURATED ACID double bonds are
a. non-conjugated
b. not present
c. coordinate covalent
d. none
Correct Option: a
36. short chain fatty acid slightly soluble in water due to
a. non polar behavior
b. lipoic acid
c. carboxylic acid
d. smaller size
Correct Option: c
37. sphinolipids were discovered by
a. johan allis
b. henry
c. johan thudichum
d. edward
Correct Option: c
38. all aplha amino acid are chiral except
a. lycine
b. aspartic acid
c. histidine
d. alaninie
Correct Option: c
39. Protiens are formed by
a. translation
b. transcription
c. both
d. none
Correct Option: a
40. The proteins with 2 different polypeptide chains called
a. oligomeric
b. dimeric
c. tertiary proteins
d. none
Correct Option: a
41. PURINE AND Pyrimidine are bases of
a. hydrophobic
b. hydrophilic
c. acidic
d. all
Correct Option: a
42. nucleic is prepared by using an enzyme
a. protease
b. kinase
c. polymerase
d. phosphate kinase
Correct Option: c
43. the genetic information are transferred to ribosomes by
a. t-Rna
b. dna
c. RNA
d. m-RNA
Correct Option: d
44. GENETIC INFORMATION CARRIERS ARE
a. alleles
b. DNA
c. genes
d. chromosomes
Correct Option: c
45. TRANSLATION IS CARRIED OUT
a. MITOCHONDRIA
b. GOLGI BODIES
c. RNA
d. RER
Correct Option: d
46. NUCLIEC acid are …………..polymer of nucleotides
a. angular
b. globular
c. ring
d. linear
Correct Option: d
47. the largest individual molecule is
a. HAEMOGLOBIN
b. DIAMOND
c. DNA
d. NONE
Correct Option: c
48. CARBOHYDRATES are polyhydroxy
a. aldehydes
b. ketones
c. both a and b
d. none
Correct Option: c
49. which bond is present in carbohydrate
a. glyosidic bond
b. peptide bona
c. both
d. none
Correct Option: a
50. Protiens are __________
a. macromolecules
b. micro
c. both
d. none
Correct Option: a
