[payal]

Discuss about jexpo chemistry question paper here. Welcome to Courses.ind.in and this page is for jexpo chemistry question paper discussion. If you are looking for information on jexpo chemistry question paper then ask your question is as much details as possible in the “Reply” box provided below. The more detailed your question will be, the more easy will it be for our experts to answers your query. And if you have any updated or latest information on jexpo chemistry question paper, then please share you knowledge with our experts in the “Reply” box below. Your reply will be published here and your knowledge can help many people. Thanks for stopping by at Courses.ind.in. Please visit again.

Hii sir, I Am Preparing for the JEXPO Examination Will you Please Provide me the Sample Question paper for the Chemistry of the JEXPO Exam ?

[prince karak]

JEXPO 2018 is a state level entrance exam which is also known as WB Polytechnic. Joint Entrance Examination for Polytechnic is administered by the West Bengal State Council of Technical Education.

Eligibility Criteria

Nationality:
Candidates must be an Indian citizen.

Qualifying Exam:
Candidate must qualify or appearing in the SSC (high school/10th) or equivalent exam from any of the recognized board.

Age Criteria:
Minimum age: The minimum age for applying is 15 years. candidate’s date of birth should not be after 01 July 2003.
Maximum age: There is no maximum age for applying.

Exam Pattern

Subjects Total Questions Time Duration
Mathematics 100 2 hours
Physics 50 2 hours
Chemistry 50
Total 200


JEXPO Chemistry Question Paper

51.CuSO45H2O* T1****CuSO4,H2****T2***CuSO4 In this process T1 ad T2 are respectively as
Ans.: (C) 125°C and 200°C
52. Excess ammonia on reaction with Cl2 gas forms
Ans.: (C) NCl3
53. Nitrolim is a mixture of
Ans.: (B) CaCN2 and C
54. For HNO3 identification, we run 'ring test', the composition of which is
Ans.: (C) Fe(NO)(H2O)5SO4
55. Identification of original diamond is done by
Ans.: (B) x*ray
56. Components of producer gas are
Ans.: (C) CO+H2
57. Baking powder is a mixture of
Ans.: (C) Sodium bicarbonate and potasium hydrogen tartarate
58. Main components of german silver are
Ans.: (D) Cu*Zn*Ni
59. The formula of Nesslar's regent is
Ans.: (C) K2HgI4
60. A small amount of powder is added into dil,. H2SO4 acid solution and the evolved gas
turbids lime water. Powder and gas are
Ans.: (D) ferrous sulphide and hydrogen sulphide
61. When an aqueous solution of Ba(NO3)2 is added to a dilute solution of an acid a white
precipitate is formed. The precipitate is insoluble in hydrochloric acid. What is the acid
Ans.: (B) HCl
62. Which of the following metals is present in all the three alloys*brass, bronze and duralumin?
Ans.: (B) Cu
63. Lightest metal is
Ans.C) Lithium
64. On contact of two gases a solid is formed. Two gases are
Ans.: (A) H2S and NH3
65. Washing liquid for photographic plate is
Ans.: (C) sodium thio*sulphate solution
66. In which of the following reactions a black precipitate is not formed?
Ans.: (C) CuSO4 + H2S* >
67. For plastering of broken hands and legs the following sulphate compound is used
Ans.: (B) CuSO4
68. Conc. H2SO4 has no action on which class of compounds?
Ans.A) Metal Sulphides****
69. The formula of brown ring , formed in the ring test of nitrate radical is
Ans.: (A) [Fe(H2O)5(NO)2]SO4
70. Which of the following can not decolourise bromine?
Ans.A) ethylene
71. How many covalent bonds are present in the molecule C3H8?
Ans.: (C) 10
72. C4H6** this hydrocarbon can not contain
Ans.: (B) One triple bond in the molecule
73. The components of a mixture of diethyl ether and acetone may be separated through?
Ans.: (A) Sublimation****
74. The pungent smell of the gas coming out from leakage of LPG cylinder is due to
Ans.: (D) mercaptane
75. 2.5 mole of anhydrous copper (II) sulphate is converted completely to blue vitriol. How many
moles of water has been added to it
Ans.: (C) 12.5 Mole
76. Which of the following when dissolved in water produce neutral aqueous solution
Ans.: (B) Common salt
77. Which of the following salts makes aqueous solution as acidic
Ans.: (B) NH4HSO4
78. A compounded, where electrovalent, covalent and coordinate, all three types of body exist is
Ans.: (B) Ca(OCL)CL
79. How much amount of CO2 may be obtained from 10kg of lime stone?
Ans.: (B) 4.4 kg
80. According to pentration power which one of the following is correct?
Ans.: (C) x*ray > γ*ray > α*ray > β*ray
81. Find the total charges present in 0.2 mole of phosphate (PO43*) ion.
Ans.: (unknown to me)
82. Litmus test of aqueous suspension of soap shows
Ans.: (B) red litmus turns to blue
83. Both the ions of which of the following pairs have 8 electrons in the L*shell?
Ans.: (B) S2* and Cl84.
A gas at 1atm. pressure of volume 100 liter is heated from 100°C to 200°C. If volume
remains constant then find out its pressure?
Ans.: (B) 1.268 atm.
85. Which of the following is most metallic in nature?
Ans.: (A) Mn
86. How does the nature of oxides of ther elements changes across a period (i.e. from left to
right) in the periodic table?
Ans.: (B) basic* >acidic* >neutral
87. How many iones are produceed in the aqueous solution s by their dissociation when 1 mole
of ferrous sulphate and 1 mole of feric sulphate are dissolved in excess of water
Ans.: (A) 3N
88. Flourine (F), Chlorine(Cl), Bromine(Br) and Iodine(I) follow electronegativity order:
Ans.B) I<Br<Cl<F
89. Which of the following is amphoteric oxide?
Ans.: (C) Al2O3
90. How many hydrogen atom are present in 2g of methane?
Ans.: (A) 3.011 x 1023
91. 19K39 and 20Ca40 are converted to mono*positive and Di*positive ions respectively. The
number of which particle / particles is/are the same in both the ions
Ans.: (B) electrons and neutrons
92. Which of the following is the electronic arrangement of CA atom?
Ans.: (C) K(2)L(8)M(8)N(2)
93. Hydrogen of acetylene is more acidic than hydrogen of ethylene, because hydrogen of
acetylene attached to
(B) SP2 carbon
94. On heating ammonium cyanate produces
Ans.: (A) Urea
95. Ethanol and dimethyl ether,the two different compounds are having the same formula, this
property is known as
Ans.: (D) Isomerism
96. What are the functional groups present in the two isomeric compounds having the same
molecular formula C3H6O
Ans.: (B) One isomer contains >C=O group and the other *OH group
97. The catalyst which is used for converting acetylene to ethylene is known as ?
Ans.: (A) Lindlar catalyst
98. Eco*friendly polymer is
Ans.: (B) Polyvinyl Chloride
99. An organic compound which contains both the amine and carboxylic acid group is
Ans.: (D) vinegar
100. The monomer of teflon polymer is
Ans.C) tetrafluoro ethylene