1. The elements with atomic number 9 , 17 , 35, 53 and 85
a. heavy metals
b. – halogens
c. noble gases
d. light metals
Correct Option: b
2. The number of elements present in fifth period of periodic table
a. 8
b. 18
c. 32
d. 10
Correct Option: b
3. Which one of the following represent correct order of electronegativities
a. P > O > N
b. N > P > O
c. N> O> F
d. O > N> P
Correct Option: d
4. The outermost electronic configuration of most of the electronegative element is
a. ns2 , np6
b. ns2 , np5
c. ns2 , np3
d. ns2 , np4
Correct Option: b
5. The most acidic oxide is
a. Na2O
b. Al2O3
c. MgO
d. CaO
Correct Option: b
6. Which of the following is a favourable factor for cation formation
a. high electronegativity
b. small atomic size
c. low ionization potential
d. high electron affinity
Correct Option: c
7. Which of the followng is inert gas
a. O2
b. N2
c. H2-
d. argon
Correct Option: d
8. Which substance does not have macromolecular structure
a. diamond
b. graphite
c. silicon dioxide
d. Nacl
Correct Option: d
9. Which of the following characteristics not associated to ionic substances
a. Fragility
b. three dimensional structure
c. deform when struck
d. high melting point
Correct Option: c
10. The structure of IF 5 is based on which configuration
a. squere antiprism
b. trigonal bipyramidal
c. octahedral
d. Tetrahedral
Correct Option: c
11. Which of the following molecule is a linear
a. ClO2-
b. NO2
c. NO2+
d. H2O
Correct Option: c
12. Which of the following substance does not contain covalent bomd
a. PH3
b. GeCl4
c. H2S
d. csF
Correct Option: d
13. Every atom contains electron, protons and neutrons except
a. Ordinary hydrogen atom
b. Helium atom
c. Boron atom
d. Carbon atom
Correct Option: a
14. The equilateral shape has
a. sp3d hybrid orbital
b. sp2 hybrid orbital
c. sp hybrid orbital
d. sp3 hybrid orbital
Correct Option: b
15. Shape of ammonia molecule
a. linear
b. trigonal pyramidal
c. tetrahedral
d. V- shape
Correct Option: b
16. The shape of molecule ClF3
a. tetrahedral
b. linear
c. T- shape
d. triangular planar
Correct Option: c
17. Buffer solution
a. resist change in pH
b. strong acid
c. decrease pH of soluton
d. Increase pH of solution
Correct Option: a
18. Which of the follwing substance have highest boiling point
a. NH3
b. CH4
c. HF
d. H2O
Correct Option: d
19. During a redox reaction an oxidising agent
a. gains electron
b. hydrolysed
c. oxidised
d. lose electrn
Correct Option: a
20. Which of the following is hard acid
a. Pd+2
b. Hg+2
c. H+
d. Ag+
Correct Option: c
21. Which of the following is adsorption indicator
a. diphenyl benzidine
b. methyl orange
c. flourescence
d. diphenylamine
Correct Option: c
22. A base is a substance which accepts
a. proton
b. an electron
c. a neutron
d. a positron
Correct Option: a
23. Conjugate acid of NH2- is
a. NH3
b. NH4+
c. NH2OH
d. N2H4
Correct Option: a
24. Lewis acid also called
a. electrophile
b. electrophile
c. nucleophile
d. substrate
Correct Option: b
25. Modern peroidic table is base on function
a. nuclear number
b. Atomic number
c. Atomic mass
d. mass number
Correct Option: b
26. E.N value of F
a. 4
b. 3
c. 3.5
d. 2
Correct Option: a
27. Actinides are present in period of periodic table
a. 7
b. 1
c. 5
d. 4
Correct Option: a
28. Charge that an atom carries in a molecule
a. Oxidation state
b. Valency
c. reduction state
d. electron affinity
Correct Option: a
29. Oxides of non metals are
a. super oxide
b. acidic
c. basic
d. amphoteric
Correct Option: b
30. Which of the following has smallest ionic radius
a. K+
b. Rb+
c. Li+
d. Na+
Correct Option: c
31. Which electronic sub shell lanthanides have incompletely filled
a. 6f
b. 5 g
c. 4f
d. 5f
Correct Option: c
32. Hybridization is a process of mixing of
a. atoms
b. orbitals
c. electrons
d. molecules
Correct Option: b
33. Octahedral shape is associated with
a. ClF3
b. TeF6
c. PF5
d. SF4
Correct Option: b
34. Which of the follwing substance have least ionic character in its bond
a. NaCl
b. KCl
c. Bacl2
d. CCl4
Correct Option: d
35. Which of the following substance is the strongest acid
a. CH4
b. NH3
c. H2O
d. HF
Correct Option: d
36. Which of the following is the strongest oxyacid
a. H ClO2
b. HClO
c. HClO4
d. HClO3
Correct Option: c
37. Which of the following is Lewis acid
a. CH3
b. NaH
c. BF3
d. CCl4
Correct Option: c
38. How many crystaline form of carbon exist
a. 3
b. 2
c. 4
d. 6
Correct Option: a
39. The main global temperature of earth surface is
a. 40◦C
b. 15◦C
c. 25◦C
d. 35◦C
Correct Option: b
40. Silicates are chief constituent of
a. hemoglobin
b. rocks and clay
c. chlorophyl
d. fertilizers
Correct Option: b
41. Which one of the following used in lead pencils
a. lead
b. carbon
c. silicon dioxide
d. graphite
Correct Option: d
42. The self linkage of an element to form chain or rings is called
a. isomorphism
b. polymorphism
c. catenation
d. allotropy
Correct Option: c
43. In the alumino thermite process Al acts as
a. dehydrating agent
b. reducing agent
c. oxidising agent
d. flux
Correct Option: b
44. The structure of AlCl3 is dimeric because it is
a. salt
b. soluble in organic solvent
c. electron deficient
d. acid
Correct Option: c
45. Oxygen is a gass
a. has double bond
b. oxygen atom does not catenate
c. paramagnetic
d. has no d- orbital
Correct Option: b
46. Bleeching action of SO2 is due to
a. Oxidation state
b. reduction
c. hydrolysis
d. hydration
Correct Option: a
47. Aq. HF stored in
a. gutta- percha bottles
b. glass vessels
c. copper vessels
d. iron vessels
Correct Option: a
48. Which of the following is the most abundant noble gas in the atmosphere
a. Neon
b. Krypton
c. argon
d. Helium
Correct Option: c
49. Pyrosilicates are the silicates in which two tetrahedral units are linked at
a. four point
b. one point
c. two point
d. three point
Correct Option: b
50. After Hydrogen second most abundant element in the universe
a. He
b. Ne
c. Xe
d. Krypton
Correct Option: a
