General%20knowledge(GK)/Chemistry%20MCQS%20-General%20Knowledge Sample Test,Sample questions

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Question: 
 
The first metal used by man was

1.iron

2.copper

3.gold

4.bronze

Posted Date:-2021-03-26 07:29:08

Question: 
 
The graphite rods in the nuclear reactor

1. react with U to release energy

2.produce neutrons

3.undergo combustion which triggers the nuclear fission

4. convert fast moving neutrons into thermal neutrons

Posted Date:-2021-03-26 07:29:08

Question: 
 
The hardest form of carbon is

1.coke

2.graphite

3.diamond

4.charcoal

Posted Date:-2021-03-26 07:29:08

Question: 
 
The high reactivity of fluorine is due to

1. its high electro negativity

2.small size of fluorine atom

3.availability of d-orbitals

4. strong F - F bond

Posted Date:-2021-03-26 07:29:08

Question: 
 
The inert gases are ____ in water

1.sparingly soluble

2.insoluble

3.soluble

4.None of these

Posted Date:-2021-03-26 07:29:08

Question: 
 
The luster of a metal is due to

1.its high density

2.its high polishing

3. its chemical inertness

4.presence of free electrons

Posted Date:-2021-03-26 07:29:08

Question: 
 
The main active constituent of tea and coffee is

1.nicotine

2.chlorophyll

3.caffeine

4.aspirin

Posted Date:-2021-03-26 07:29:08

Question: 
 
The major constituent of air is

1.nitrogen

2.carbon dioxide

3.oxygen

4.hydrogen

Posted Date:-2021-03-26 07:29:08

Question: 
 
The mass number of a nucleus is

1.always less than its atomic number

2.the sum of the number of protons and neutrons present in the nucleus

3.always more than the atomic weight

4.a fraction

Posted Date:-2021-03-26 07:29:08

Question: 
 
The metal that is usually extracted from sea water is

1.Ca

2.Na

3.K

4.Mg

Posted Date:-2021-03-26 07:29:08

Question: 
 
The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in

1.1.8 gram of H2O

2.12 moles of KMnO4

3. 0.6N H2SO4

4.4.6 gram of C2H5OH

Posted Date:-2021-03-26 07:29:08

Question: 
  
The formula C6H5-CO-CH3 represents

1.Acetone

2.Acetic acid

3.Acetophenone

4.Phenyl acetate

Posted Date:-2021-03-26 07:29:08

Question: 
  
The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is

1.helium

2.ozone

3.oxygen

4.methane

Posted Date:-2021-03-26 07:29:08

Question: 
  
The mineral containing both magnesium and calcium is

1.magnesite

2.calcite

3.carnallite

4.dolomite

Posted Date:-2021-03-26 07:29:08

Question: 
  
The most abundant rare gas in the atmosphere is

1.He

2.Ne

3.Ar

4.Xe

Posted Date:-2021-03-26 07:29:08

Question: 
  
The most commonly used bleaching agent is

1.alcohol

2.carbon dioxide

3.chlorine

4.sodium chlorine

Posted Date:-2021-03-26 07:29:08

Question: 
  
The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of

1.atomic structure

2.metallurgy

3.periodic table of contents

4. discovery of elements

Posted Date:-2021-03-26 07:29:08

Question: 
  
The National Chemical Laboratory is situated in

1. New Delhi

2.Bangalore

3.Pune

4.Patna

Posted Date:-2021-03-26 07:29:08

Question: 
  
The nuclear particles which are assumed to hold the nucleons together are

1.electrons

2.positrons

3.neutrons

4.mesons

Posted Date:-2021-03-26 07:29:08

Question: 
  
The nucleus of a hydrogen atom consists of

1.1 proton only

2.1 proton + 2 neutron

3. 1 neutron only

4.1 electron only

Posted Date:-2021-03-26 07:29:08

Question: 
  
The number of electrons presents in H+ is

1.zero

2.one

3.two

4.three

Posted Date:-2021-03-26 07:29:08

Question: 
  
The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

1.4

2.5

3.2

4.zero

Posted Date:-2021-03-26 07:29:08

Question: 
  
The octane number of zero is assigned to

1.2-methyl octane

2.n-heptane

3.iso-octane

4.3-methyl octane

Posted Date:-2021-03-26 07:29:08

Question: 
  
The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of

1.an addition reaction

2.a condensation reaction

3. an oxidation reaction

4.an elimination reaction

Posted Date:-2021-03-26 07:29:08

Question: 
Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be

1.0.094467593

2. 2 : 16 : 1

3.0.052800926

4.0.042372685

Posted Date:-2021-03-26 07:29:08

Question: 
he number of waves in n x 10th Bohr's orbit are

1.n2

2.n

3.n-2

4.n3

Posted Date:-2021-03-26 07:29:08

Question: 
The nucleus of an atom consists of

1. electrons and neutrons

2.electrons and protons

3.protons and neutrons

4.All of the above

Posted Date:-2021-03-26 07:29:08

Question: 
The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle?

1.3 billion years

2.100 years

3.0.01 minute

4.13 days

Posted Date:-2021-03-26 07:29:08

Question: 
The gas used for artificial ripening of green fruit is

1.ethylene

2.ethane

3. carbon dioxide

4.acetylene

Posted Date:-2021-03-26 07:29:08

Question: 
The gas used in the manufacture of vanaspati from vegetable oil is

1.hydrogen

2.oxygen

3.nitrogen

4.carbon dioxide

Posted Date:-2021-03-26 07:29:08

Question: 
The heat energy produced when the human body metabolises 1 gram of fat is

1.30 KJ

2.1 KJ

3. 39 KJ

4.29 KJ

Posted Date:-2021-03-26 07:29:08

Question: 
The heat required to raise the temperature of body by 1 K is called

1.specific heat

2.thermal capacity

3. water equivalent

4. None of the above

Posted Date:-2021-03-26 07:29:08

Question: 
The hottest part of the gas flame is known as

1.luminous zone

2.dark zone

3.blue zone

4.None

Posted Date:-2021-03-26 07:29:08

Question: 
The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is

1.carbon

2.hydrogen

3.oxygen

4.nitrogen

Posted Date:-2021-03-26 07:29:08

Question: 
The hydronium ion is

1.H+

2.HO -

3.H2+

4.H3O+

Posted Date:-2021-03-26 07:29:08

Question: 
The inexpensive and commonly used variety of glass is called soda glass. It is called so because

1.was used initially for making bottles of soda(carbonated drink)

2.is made using soda(sodium carbonate)

3.was initially used for storing sodium carbonate

4.is made using soda lime

Posted Date:-2021-03-26 07:29:08

Question: 
The inherited traits of an organism are controlled by

1.RNA molecules

2.nucleotides

3.DNA molecules

4.enzymes

Posted Date:-2021-03-26 07:29:08

Question: 
The ionic radii of N3-, O2-, F- and Na+ follows the order

1.N3- > O2- > F- > Na+

2.N3- > Na+ > O2- > F-

3.Na+ > O2- > N3- > F-

4.O2- > F- > Na+ > N3-

Posted Date:-2021-03-26 07:29:08

Question: 
The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is

1.5x/36

2.5x

3.7.2 x

4.x/6

Posted Date:-2021-03-26 07:29:08

Question: 
The iron ore magnetite consists of

1.Fe2O3

2.Fe3OH4

3.FeCO3

4.3Fe2O3 .. 3H2O

Posted Date:-2021-03-26 07:29:08

Question: 
The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is

1.chain isomerism

2. functional group isomerism

3.positional isomerism

4.metamerism

Posted Date:-2021-03-26 07:29:08

Question: 
The items amenable to detection by soft x-rays are

1.contrabands

2.lead in bullets

3.narcotics

4.genuine coins from counterfeit coins

Posted Date:-2021-03-26 07:29:08

Question: 
The Latin word formica means ant. The name formic acid is derived from this Latin word because

1.this acid, in ancient times, was used to eliminate ant-hills

2.this corrosive acid is secreted by ants to drive away their enemies

3. this acid was first obtained by the distillation of ants

4.ants are attracted by the odour of this acid

Posted Date:-2021-03-26 07:29:08

Question: 
The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is

1.Dalton's law

2.Gay Lussac's law

3.Henry's law

4.Raoult's law

Posted Date:-2021-03-26 07:29:08

Question: 
The main chemical constituent of clay is

1.silicon oxide

2.aluminium borosilicate

3.zeolites

4. aluminium silicate

Posted Date:-2021-03-26 07:29:08

Question: 
The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is

1.cineole

2.engenol

3.geraniol

4.limonene

Posted Date:-2021-03-26 07:29:08

Question: 
The main use of salt in the diet is to

1.make the taste of food better

2.produce in small amounts the hydrochloric acid required for the digestion of food

3.ease the process of cooking

4.increase the solubility of food particles in water

Posted Date:-2021-03-26 07:29:08

Question: 
The mass number of an atom is equal to

1. the number of protons

2.the number of protons and electrons

3.the number of nucleons

4. the number of neutrons

Posted Date:-2021-03-26 07:29:08

Question: 
The mass of one Avogadro number of helium atom is

1.1.00 gram

2.4.00 gram

3.8.00 gram

4.4 x 6.02 x 1023 gram

Posted Date:-2021-03-26 07:29:08

Question: 
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

1.2.05 gram

2.3.05 gram

3.4.05 gram

4.5.05 gram

Posted Date:-2021-03-26 07:29:08

Question: 
The material which can be deformed permanently by heat and pressure is called a

1.thermoplastic

2.thermoset

3.chemical compound

4.polymer

Posted Date:-2021-03-26 07:29:08

Question: 
The maximum number of covalent formed by nitrogen is

1.1

2.2

3.3

4.4

Posted Date:-2021-03-26 07:29:08

Question: 
The maximum number of isomers for an alkene with molecular formula C4H8 is

1.5

2.4

3.2

4.3

Posted Date:-2021-03-26 07:29:08

Question: 
The metal does not give H2 on treatment with dilute HCL is

1.Zn

2.Fe

3.Ag

4.Ca

Posted Date:-2021-03-26 07:29:08

Question: 
The metal that is used as a catalyst in the hydrogenation of oils is

1.Ni

2.Pb

3.Cu

4.Pt

Posted Date:-2021-03-26 07:29:08

Question: 
The metal used to recover copper from a solution of copper sulphate is

1.Na

2.Ag

3.Hg

4.Fe

Posted Date:-2021-03-26 07:29:08

Question: 
The metallurgical process in which a metal is obtained in a fused state is called

1.smelting

2.roasting

3.calcinations

4. froth floatation

Posted Date:-2021-03-26 07:29:08

Question: 
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

1.liquation

2.leaching

3.levigation

4.magnetic separation

Posted Date:-2021-03-26 07:29:08

Question: 
The method that cannot be used for removing permanent hardness of water is

1. adding sodium carbonate

2.distillation

3. adding caustic soda

4.boiling

Posted Date:-2021-03-26 07:29:08

Question: 
The molecular formula of phosphorous is

1.P1

2.P2

3.P3

4.P4

Posted Date:-2021-03-26 07:29:08

Question: 
The molecule which has the highest percentage of ionic character among the following is

1.HI

2.HF

3.HCI

4.HBr

Posted Date:-2021-03-26 07:29:08

Question: 
The molecules of which gas have highest speed?

1.H2 at -73oC

2.CH4 at 300 K

3.N2 at 1,027oC

4.O2 at 0oC

Posted Date:-2021-03-26 07:29:08

Question: 
The monomer of polythene is

1.vinyl chloride

2.vinyl chloride

3.ethyl alcohol

4. None of the above

Posted Date:-2021-03-26 07:29:08

Question: 
The most electronegative element among the following is

1.sodium

2.bromine

3.fluorine

4.oxygen

Posted Date:-2021-03-26 07:29:08

Question: 
The most electropositive elements among the following is

1.Na

2.Ca

3.K

4.Cs

Posted Date:-2021-03-26 07:29:08

Question: 
The most extensive, commercially useful source of thorium as monazite sand occurs in India at

1.Orissa coast

2.Travancore coast

3.West Bengal coast

4.Gujarat coast

Posted Date:-2021-03-26 07:29:08

Question: 
The most malleable metal is

1.platinum

2.silver

3.iron

4.gold

Posted Date:-2021-03-26 07:29:08

Question: 
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

1.p-electrons in Ne(Z = 10)

2.s-electrons in Mg(Z = 12)

3.d-electrons in Fe(Z = 26)

4.p-electrons in CI(Z = 17)

Posted Date:-2021-03-26 07:29:08

Question: 
The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

1.1 gram of molecule

2. 0.5 gram of molecule

3.5 gram of molecule

4.10 gram of molecule

Posted Date:-2021-03-26 07:29:08

Question: 
The number of moles of solute present in 1 kg of a solvent is called its

1.molality

2.molarity

3.normality

4.formality

Posted Date:-2021-03-26 07:29:08

Question: 
The oil used in the froth floatation process is

1.coconut oil

2.olive oil

3.kerosene oil

4.pine oil

Posted Date:-2021-03-26 07:29:08

Question: 
The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called

1.granite

2.basalt

3. igneous rocks

4.sedimentary rocks

Posted Date:-2021-03-26 07:29:08

Question: 
The ore which is found in abundance in India is

1.monazite

2.fluorspar

3.bauxite

4.magnetite

Posted Date:-2021-03-26 07:29:08

Question: 
What are the number of moles of CO2 which contains 16 g of oxygen?

1.0.5 mole

2.0.2 mole

3.0.4 mole

4. 0.25 mole

Posted Date:-2021-03-26 07:29:08

Question: 
Zone refining is used for the purification of

1.Au

2.Ge

3.Ag

4.Cu

Posted Date:-2021-03-26 07:29:08

Posted on by R4R Team

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  228. GK General Knowledge - Political Science Question Set 3
  229. GK General Knowledge - Art And Culture Question Set 1
  230. GK General Knowledge - Art And Culture Question Set 2
  231. Goa GK MCQ
  232. Manipur GK MCQ
  233. Sikkim GK MCQ
  234. GK General Knowledge - Art And Culture Question Set 3
  235. GK General Knowledge - Art And Culture Question Set 4
  236. GK General Knowledge - Art And Culture Question Set 5
  237. GK General Knowledge - Art And Culture Question Set 6
  238. GK General Knowledge - Art And Culture Question Set 7
  239. Country Capitals and Currency GK MCQ
  240. GK English Mcq Question Answer
  241. Science And Technology Mcq Question
  242. General Awareness MCQ
  243. GK Material Science Mcq
  244. Medieval Indian History Questions (MCQs) for UPSC, SSC Exams
  245. World Geography MCQ
  246. Sports GK Questions MCQs
  247. General Knowledge Ancient History
  248. Books And Authors General Knowledge Questions
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