1. The ionization energy of sodium is……..
a. 496KJ/MOL
b. 496J/MOL
c. 462KJ/MOL
d. 367KJ/MOL
Correct Answer: a
2. The atomic ni increase from left to right ,the atomic radius ………
a. decerase
b. lower
c. higher
d. increase
Correct Answer: d
3. A negetive ion is always …….then parent atom:
a. larger
b. constant
c. same
d. smaller
Correct Answer: d
4. Electron affinity depend upon nuclear charge vacancies in………
a. nearest shell
b. subshell
c. middle shell
d. outermost shell
Correct Answer: d
5. The ionization energy of magnesium is:
a. 738KJ/mol
b. 728KJ/mol
c. 718KJ/mol
d. 748KJ/mol
Correct Answer: a
6. In periodic table,the ionization energy increases from:
a. right to left
b. top to bottom
c. irregular mode
d. left to right
Correct Answer: d
7. Electron affinities are influenced by:
a. covalent radii
b. atomic radius
c. electronegetivity
d. nature of orbital
Correct Answer: b
8. Electronegetivity value of N is:
a. 3
b. 2.5
c. 2.1
d. 3.5
Correct Answer: a
9. A negetively charged ion attracts:
a. proton
b. anion
c. cation
d. neutral
Correct Answer: b
10. The main global temperature at the earth is about:
a. 15C
b. 25C
c. 10C
d. 35C
Correct Answer: a
11. Which of the following oxide is amphoteric :
a. Al2O3
b. CaO
c. Br2O3
d. NH3
Correct Answer: a
12. Silicon are synthetic polymer containing linkage :
a. Si-S-SI
b. Si-c-Si
c. Si(CH3)4
d. Si-O-Si
Correct Answer: d
13. Bleaching action of SO2 is due to:
a. reduction
b. hydrolysis
c. generation
d. oxidation
Correct Answer: d
14. Sulpher is a….. conductor of electricity
a. good
b. moderate
c. best
d. poor
Correct Answer: d
15. Formula of trithonic acid is……..
a. K2S3O6
b. H2S2O7
c. H2S3O6
d. Na2S3O6
Correct Answer: c
16. Sulpher is a major derivative of:
a. acetic aid
b. sodium
c. silicon
d. sulphuric acid
Correct Answer: d
17. silicon is most abundantly exist in nature as
a. silicate
b. graphite
c. diamond
d. silica
Correct Answer: d
18. which one of the following elements does not ehibit allotropy
a. P
b. O
c. S
d. N
Correct Answer: d
19. orthophosphoric acid on heating gives
a. PH3
b. H3PO2
c. P2O3
d. HPO3
Correct Answer: d
20. phoshorous belongs to which group
a. 15 group
b. 14 group
c. 16 group
d. 18 group
Correct Answer: a
21. phosphine is prepared by the action of
a. P with H2SO4
b. P with HNO3
c. P with HCL
d. P with aq. KOH
Correct Answer: d
22. blast on tnt is done by mixing
a. NH4 NO3
b. NH4 NO3
c. (NH4)2 SO4
d. NH4 Cl
Correct Answer: d
23. The most powerful oxidizing agent among halogens is
a. Br2
b. I 2
c. F2
d. Cl2
Correct Answer: c
24. Iodine is not found in nature
a. complex
b. molecular
c. free
d. bounded
Correct Answer: c
25. In halogens not form oxyacids
a. Br
b. I
c. F
d. Cl
Correct Answer: c
26. The halogen which is liquid at room temperature
a. iodine
b. bromine
c. flourine
d. astetine
Correct Answer: b
27. The example of pseudohalogen group is not
a. nitro compounds
b. cyanogen
c. amine group
d. carboxylic acid
Correct Answer: b
28. Noble gases cannot form
a. metallic bond
b. covalent bond
c. coordinate bond
d. ionic bond
Correct Answer: b
29. Xenon has been found to combine with most electronegative
a. boron
b. carbon
c. flourine
d. chlorine
Correct Answer: c
30. The first noble gas compound was
a. XeF6
b. XeO3
c. FeX4
d. Xe+(ptF6)-
Correct Answer: d
31. Xenon hexaflouride at 47.7 C
a. yellow solid
b. colourless solid
c. colourless liquid
d. yellow fluid
Correct Answer: d
32. Inert noble gases placed in group
a. V A
b. IV B
c. VII A
d. VIII A
Correct Answer: d
33. For the respiration of sea divers mixture is used
a. Ar & O2
b. Ne & O2
c. Kr & O2
d. He & O2
Correct Answer: d
34. The shape of molecule XeF6 is
a. square planer
b. pentagonal bipyramidal
c. distorted octahedral
d. regular octahedral
Correct Answer: c
35. 4 is the electronegativity value of
a. H
b. Cl
c. F
d. N
Correct Answer: c
36. The shared pair of electron in co-ordinate covalent bond
a. single line
b. an arrow
c. double line
d. an equal sign
Correct Answer: b
37. The shared pair of electron in a molecule
a. electron pair
b. bonding pair
c. lone pair
d. non bonding pair
Correct Answer: b
38. The second ionization energy is………….than first ionization energy
a. smaller
b. less
c. same
d. higher
Correct Answer: d
39. Ionization energy is the qualitative measurement of……….. of an atom
a. unstability
b. nuclear charge
c. electronic charge
d. stability
Correct Answer: d
40. Minimum energy required to remove an electron from its gaseous atom
a. electron affinity
b. electro negativity
c. sheilding effect
d. ionization energy
Correct Answer: d
41. Electronic concept of acid-base is given by:
a. lowery
b. arhenius
c. joul
d. Lewis
Correct Answer: d
42. The specie that give H ion is:
a. Acid
b. Base
c. Neutral
d. Amphoteric
Correct Answer: a
43. Larger the Pka ——-is the acid:
a. stronger
b. Stable
c. Unstable
d. weaker
Correct Answer: d
44. Conjugate acid of a very strong base is very:
a. weak acid
b. weak base
c. strong acid
d. strong base
Correct Answer: a
45. Common ion suppresses……. effect in blood:
a. acidic
b. basic
c. amphoteric
d. neutral
Correct Answer: a
46. Silicon is most abundantly found in nature as:
a. Ca silicate
b. silicate
c. Na silicate
d. silica
Correct Answer: d
47. Shape of diamond crystal is:
a. cubic
b. needle like
c. hexagonal
d. octahedral
Correct Answer: d
48. Coal is the amorphous form of the:
a. calcium
b. carbon
c. iron
d. silicon
Correct Answer: b
49. Carbon is the powerful ……….. Agent:
a. bleaching
b. oxidizing
c. neutrilizing
d. reducing
Correct Answer: d
50. Which one of the following is a bad conductor of electricity:
a. copper
b. silver
c. diamond
d. graphite
Correct Answer: c
