1 - The mass of one mole of electron is
55
2 - The volume occupied by 1.4g CO at S.T.P is
12 dm3
3 - The number of atoms in a molecule determines
atomicity
4 - Which of the following set has all species isoelectronic
F - Ne - Na+
5 - Which element has same isotopes like palladium
Calcium
6 - Water absorber used in combustion analysis is
Mg (CIO4)2
7 - A limiting reactant is one which
gives the minimum amount of the product under consideration
8 - The type of filtering media used for filtration depending upon
Nature of precipitate
9 - A safe and more reliable method for drying the crystal is
Vacuum desiccator
10 - A method of separation of components from its solution using Distribution law is
Solvent extraction
11 - A real gas obeying vander waals equation will resemble the ideal gas if
Both a and b are small
12 - Plasma is used in
All of these
13 - The molecules of CO2 in dry ice form
Molecular crystal
14 - Which of the following is pseudo solid
Glass
15 - Only London dispersion forces are present among the
Molecules of solid iodine
16 - Bohrs model is contradicted by
Heisenbergs uncertainty principle
17 - Quantum number values for 3p orbitals are
n=3 l=1
18 - Which specie has unpaired electrons in antibonding molecular orbitals
N2-2
19 - Atomic radius can be determined by
X - ray diffraction
20 - For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as
qp > qv
21 - For which system does the equilibrium constant Kc has unit of (concentration)-1
2NO2 <=> N2H4
22 - Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is
414 x 10-5 mol dm-3
23 - Which of the following solution has the highest boiling point?
85% NaCl Solution
24 - Stronger is the oxidizing agent greater is the
standard reduction potential
25 - Which of the following can be used in laptops?
Nickel cadmium cell
26 - Which is true about Zn-Cu galvanic cell?
Anode is negatively charged
27 - Which is the unit of (K) rate constant for zero order reaction?
mol dm-3 s-1
28 - Nitrates of which pair gives different products on thermal decomposition
Li Na
29 - Which is carnalite
KCI MgCl2 6H2O
30 - Keeping in view the size of atom which is in correct order
Ba > Mg
31 - Which one does not give borax bead test
Barium sulphate
32 - Which one is not the use of silicones
Medicine
33 - The most reactive allotropic form of phosphorus is
White
34 - Chemical composition of cinnabar is
HgS
35 - Which molecule has the highest bond energy among the halogens
Chlorine
36 - When chlorine is passed through hot solution of caustic soda the reaction is said as
Disproportionation reaction
37 - The most paramagnetic element is
Iron
38 - In the complex [Cr(OH)3(H2O)3] the coordination number is
6
39 - Which one of the following looks odd
H2S
40 - A great variety of the organic compounds is due to its property of carbon
Exhibit catenation
41 - In 1 - pentene -4- yne the carbon exhibit hybridization
sp3 - sp2 - sp
42 - Vinyl acetylene combines with hydrochloric acid produces
Chloroprene
43 - When benzene is heated in air with V2O5 at 450Degree Centigrade yields
Maleic anhydride
44 - When toluene reacts with chlorine in sunlight the first major product is
Benzy1 chloride
45 - Which one of the following will be sulphonated readily?
Toluene
46 - Which one of the following is not a good leaving group ?
OH-
47 - When CO2 is made to react with ethy1 magnesium iodide in dry ether followed by acid hydrolysis yields
Propanoic acid
48 - The process of fermentation involves all the enzymes except
Sucrase
49 - Ethy1 chloride on reduction in the presence of Zn/HCI produces
Ethane
50 - Which one does not exhibit aldol condensation
Benzaldehyde
51 - For industrial preparation of CH3CHO catalytic promoter is
Cu2Cl2
52 - The common name of propane -1 3-dioic acid is
Malonic acid
53 - Which of the following is not a fatty acid?
Phthalic acid
54 - Industrial materials thermal power stations are coated with
Epoxy paints
55 - Which one of the following fertilizers provides the nitrogen and phosphorus to the plant?
Urea
56 - Chlorination of water may be harmful if the water contains
Carbon dioxide
57 - Which of the following technique is used for the separation of insoluble particles from liquids?
Filtration
58 - Which of the following way in used for classification of chromatography?
All
59 - Fluted filter paper is used to
Increase the rate of filtration
60 - Safe and the most reliable method of drying crystals is through
Vacuum desiccators
61 - A substance having very high vapour pressure at its melting point on heating will show
Sublimation
62 - A process controlled by Distributive law is
Solvent extraction
63 - A technique of partition chromatography in which the solvent is in a pool at the bottom of container
Ascending chromatography
64 - Different components of a mixture have different Rf values due to
Their different distribution coefficients in the solvent
65 - Branch of chemistry that deals with the complete qualitative and quantitative analysis of a substance is
Analytical chemistry
66 - Identification of the components of a sample is
Qualitative analysis
67 - Estimation of amounts of different components in a sample is
Quantitative analysis
68 - The technique used to separate components of mixture in solid phase.
Sublimation
69 - The solid which is left over the filter paper as a result of filtration
residue
70 - Size of filter paper is selected according to the amount of
amount of insoluble solute
71 - Gooch Crucibles are made up of
porcelain
72 - Rate of filtration can be increased by applying gentle suction
Filter paper
73 - Sintered crucible is made up of
glass
74 - The tip of funnel should touch the wall of the breaker in order to avoid
splashing
75 - Separation of a solid from its hot saturated solution by cooling is called
crystallization
76 - In crystallization if the solvent is inflammable then direct heating is
avoided
77 - Which of the following technique is simple and efficient to purify a substance
Solvent extraction
78 - In solvent extraction ether is used to separate products of organic synthesis from
water
79 - 95% ethanol is called
rectified spirit
80 - The use of CaCl2 and PCl5 in the process of crystallization is as a
drying agent
81 - Ratio of the amount of solute in organic and aqueous solvent is
Distribution co-efficient
82 - Without suction pump filtration is
Slow process
83 - Animal charcoal adsorbs the coloured
impurities
84 - Direct conversion of solids into vapours is called
sublimation
85 - Crystallization does not involve
sublimation
86 - In CCI4 I2 shows
Purple colour
87 - Repeated extraction using small portions of solvents is more
Efficient
88 - Silica gel and alumina are used as
Stationary phase
89 - Shaking two immiscible liquids increases
Area of contact
90 - The solvent or mixture of solvents used for separation of compounds is called
Mobile phase
91 - Which is not a sublime material
Potash alum
92 - Sintered glass is a porous material used for
filtration
93 - Selection of filter paper depends on size of particles to be
filtered
94 - The solution remaining after the formation of crystals is called
Mother liquor
95 - Which is not related pair of term used in analytical techniques
Sublimate sublimation
96 - The major steps involved in complete quantitative analysis are
4
97 - Main source of organic compounds is
Animal
98 - Octane number can be improved by
All
99 - Hydro carbons which burn with smoky flame are called
Aromatic
100 - Octane number 2 2 4-trimethyl pentane is
100
101 - Propene can exhibit
none of the above
102 - Geometric isomerism is usually found in
Alkenes
103 - Pentane and 2-methyl butance have the same
Percentage composition
104 - Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have
Low melting points
105 - The first organic compound was synthesized in laboratory by
Wohler
106 - According to vital force theory
organic compounds cannot be synthesized from inorganic compounds
107 - First organic compound synthesized in laboratory was
urea
108 - A double bond consists of
One sigma and one Pi bonds
109 - The property of carbon chain formation is called
catenation
110 - Chemical properties of first member of homologous series with respect to other members are
same
111 - The organic compounds having very high molecular weight are called
polymers
112 - Compounds having same molecular formula but differ in structural formula are called
isomer
113 - Rate of reactions of most organic compounds are
slow
114 - Organic compounds are soluble in
non-polar solvent
115 - Coal is produced after a long time decay of
wood
116 - Methane is used in power generation in chemical industries being a
cheaper
117 - Crude oil is blackish coloured liquid produced after the decay of organic matter present between
sedimentary rocks
118 - The precess in which larger molecule with higher molecular weight breaks down into smaller moleucles with lower molecular weight
pyrolysis
119 - At low temperature and pressure cracking can be done in presence of catalyst
Al2O3 and SiO2
120 - The metallic sound produced by engine due to the pre-ignition of fuel is called
knocking
121 - Which one of the following compounds shows intense knocking?
n-heptane
122 - Which of the following can be used as anti-knocking agent.
(C2H5)4 Pb
123 - Isomerism which is present only in alkene is
cis-trans isomerism
124 - A single atom or group of atoms which gives characteristic properties to a compound is called
functional group
125 - Compound containing benzene ring in their structure are
aromatic
126 - 2-propanol and 1-propanol show the isomerism
position isomerism
127 - Which of the following is an amide
RCONH2
128 - In sp3 hybridization the expected geometry of molecules will be
tetrahedral
129 - Only sigma bonds are present in
ethoxy ethane
130 - In cyano group the carbon atom shows which kind of hybridization
sp
131 - The structure of ethyne is
linear
132 - the fractional distillation of petroleum produces gasoline up to
0.2
133 - The general formula of cycloalkene is
CnH2n-2
134 - Which is not heterocyclic compound
Aniline
135 - C5H12 has the number of isomers
three
136 - Alkanes containing a methyl group on main chain at 2nd carbon are called
iso-alkane
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