chemistry Mcqs
1101. Transition elements, in general, exhibit the following properties, except one. Name that property?
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A. Variable oxidation state

B. Formation of alloys

C. Natural Radioactivity

D. Tendency to form complexes

1102. Molozonide is unstable and changes into ozonide on_________________?
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A. oxidation

B. rearrangement

C. reduction

D. hydrolysis

1103. Which one is Chloroform_________________?
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A. CH2Cl2

B. CH3Cl

C. CHCl3

D. CCl4

1104. The average salinity of sea water is________?
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A. 3%

B. 2%

C. 3.5%

D. 2.50%

1105. The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called__________________?
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A. Filterate

B. Extract

C. Molasses

D. Mother liquor

1106. Which one of the following is termed as benzul alcohol ?
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A. C6H5CH2OH

B. C6H5COOH

C. C6H5CH(OH)2

D. C6H5OH

1107. Which C-X bond has the highest bond energy per mole ?
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A. C-C

B. C-F

C. C-I

D. C-Br

1108. Parkes process is used in the extraction of________?
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A. Iron

B. Sodium

C. Silver

D. Zinc

1109. Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent________________?
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A. formaldehyde

B. ketone

C. ethylene epoxide

D. both A & C
1110. The IUPAC suffix used for _______ NC group?
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A. Nitrile

B. Carbylamines

C. Cyanide

D. Isocyanides

1111. Indicate the correct statement__________________?
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A. Cl2 is insoluble in water

B. Cl2 is the strongest oxidizing agent

C. I2 is a volatile solid

D. Br2 is more reactive than Cl2

1112. Which metal is used as a reducing agent in Smelting______?
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A. Al

B. Zn

C. C

D. Cu

1113. Bromine can be liberated from KBr solution by the action of _______________?
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A. Chlorine

B. Ki

C. Iodine solution

D. NaCl

1114. Raney nickel is prepared from ______________________ by treating with caustic soda?
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A. Ni-Cu alloy

B. Ni-Al alloy

C. Ni-Mg alloy

D. Ni-Fe alloy

1115. The common oxidation state of lanthanides is_________?
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A. 4

B. +3

C. 2

D. 1

1116. Sum of protons and neutrons in an atom gives off _________ ?
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A. Nucleon numbera

B. Mass number

C. Atomic number

D. Both A and B
1117. Commercial detergents contain mainly _____________?
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A. ammad Ali Kunbhar

B. RSNa

C. RONa

D. RCOON

E. ROsO3Na

1118. Introduction of nitro group in a molecule is called___________________?
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A. halogenation

B. amination

C. sulphonation

D. nitration
1119. Polyethylene Glycols are used in the preparation of which type of detergents?
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A. Non-ionic detergents soap

B. Cationic detergents

C. All of above

D. Anionic detergents

1120. The halogen which reacts spontaneously with gold (Au) to form Au+3 is ________________?
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A. Cl2

B. Br2

C. I2

D. F2

1121. Which one of the following species is not an electrophile ?
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A. Br+

B. H+

C. NH3

D. BF3

1122. Which of the following is not use of compounds of Fluorine________________?
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A. None of the above

B. SbF3 is used for manufacture of pottery

C. Cu F2 is used in ceramic industry

D. Sodium fluoroacetate is a rat poison

1123. The stationary and mobile phases in paper chromatography are____________?
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A. Liquid/solid

B. Solid/liquid

C. Liquid/liquid

D. Liquid/gas

1124. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?
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A. 12 moles of KMnO4

B. 4.6 gram of C<sub>2</sub>H<sub>5</sub>OH

C. 0.6N H<sub>2</sub>SO<sub>4</sub>

D. 1.8 gram of H<sub>2</sub>O

1125. Which is the paramagnetic oxide of chlorine ?
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A. Cl2O7

B. all

C. Cl2O6

D. ClO2
1126. What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B] ?
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A. Two

B. One

C. Three

D. Zero

1127. Elimination bimolecular reactions involve____________________________?
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A. third order kinetics

B. first order kinetics

C. second order kinetics

D. zero order kinetics

1128. Which of the following phenomenon is considered responsible for Global Warming?
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A. Greenhouse effect

B. Monsoon

C. Fire in coal mines

D. Dry farming

1129. Which is methyl cyanide_________________?
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A. CH3NO2

B. CH2 = CH CN

C. CH3NH2

D. CH3CN
1130. The number of lone pairs in XeOF4 is_________?
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A. O

B. 3

C. 1

D. 2

1131. Which of the following alloys contain(s) Cu and Zn?
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A. Gun-metal

B. Brass

C. Type metal

D. Bronze

1132. Heating phenol with Zn will yield_________________?
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A. Phenoxide

B. Benzoic acid

C. Cyclohexane

D. Benzene
1133. Ethyl chloride with nascent hydrogen produces_________________?
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A. butane

B. ethane

C. methane

D. propane

1134. What is the density ofargon gas at a temperature of 30C and a pressure of 1.05 atm?
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A. 1.67 g/L

B. 1.65 g/L

C. 1.68 g/L

D. None of the above

1135. Which of the following is the most reactive_________________?
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A. ethyne

B. ethene

C. ethane

D. benzene

1136. Fluorine can react with_________________?
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A. Kr

B. Xe

C. Rn

D. All of the above
1137. The element having electronic configuration [kr] 4d10, 4f14,5s2,5p6,5d1,6s2 belongs to __________?
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A. P-Block

B. d-Block

C. f-Block

D. S-Block

1138. What is the molecular formula for Nitric acid ________ ?
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A. HNO2

B. H2NO4

C. HN2O2

D. HNO3
1139. Carbon in wrought iron is present as_________?
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A. Partly as iron carbide and partly as graphite

B. Iron carbide

C. Graphite

D. Silicon carbide

1140. Hydrogenolysis results in the formation of________________?
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A. alkyne

B. aldehydes

C. alkane

D. alkene

1141. A theoretical link between quantum mechanics and thermodynamics is_________?
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A. Electrchemistry

B. Matrix mechanics

C. Soectroscopic analysis

D. Statistical thermodynamics
1142. Which one of the following compound does not have OH group___________________?
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A. ethyl acetate

B. picric acid

C. ethylene glycol

D. glycerol

1143. What is the molecular Weight of Nitric acid (HNO3 ) ?
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A. 65.012 g/mol

B. 70.012 g/mol

C. 81.011 g/mol

D. 63.012 g/mol
1144. Which of the following gases shows more ideal behaviour at 0C___________?
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A. NH3

B. H2

C. He

D. CH4

1145. Removal of halogen and hydrogen atom is_________________?
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A. dehalogenation

B. dehydrohalogenation

C. hydrohalogenation

D. halogenation

1146. The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?
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A. Extraction

B. Gas chromatography

C. Column chromatography

D. Distillation

1147. Photographic plates are coated with a thin film of _________________?
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A. AgNO3

B. AgCl

C. AgI

D. AgBr
1148. Oxidation state +1 for phosphorous is found in___________?
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A. H2P2O7

B. H3PO2

C. H3PO4

D. H3PO3

1149. Preparation of vegetable ghee involves_________________?
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A. hydroxylation

B. hydration

C. halogenation

D. hydrogenation
1150. The process of fermentation of starch involve many enzymes the sequence of enzymes used are____________________?
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A. Diastase-zymase-maltase

B. Maltase-diastase-zymase

C. Diastase-maltase-zymase

D. Zymase-maltase-diastase