. 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


c. isotones


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


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


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


a. alleles

b. DNA

c. genes

d. chromosomes

Correct Option: c




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



c. DNA


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