Free Chemistry MCQs Mock Test Online with Answers

Q1 : What is the chemical name of Oil of Vitriol?

A: Hydrochloric Acid B: Sulphuric Acid C: Nitric Acid D: Muriatic Acid

Q2 : What is the color of precipitates of AgCl?

A: Yellow B: Green C: Blue D: White

Q3 : The range of acid PH on PH scale is____________?

A: 9 to 8 B: 6 to 7 C: 1 to 6 D: 1 to 10

Q4 : In Dry cell, cathode is made up of_______?

A: Zinc B: Carbon (Graphite) C: ZnCl² D: MnO²(Pyrolusite)

Q5 : According to Kinetic Molecular Theory gas molecules move in_______path?

A: Straight B: Parabolic C: Zig-zag D: Hyperbolic

Q6 : Ammonium cynanate was 1st Inorganic compound that was converted into an Organic compound (in Lab) through boiling water. The organic compound was____.

A: Methane B: Ethanol C: Acetic acid D: Urea

Q7 : Which one does not give borax bead test_________________?

A: Copper sulphate B: Barium sulphate C: Cobalt sulphate D: Nickel sulphate

Q8 : The source of the Sun’s energy is the process of ____________?

A: Photoelectric emission B: Nuclear fission C: Nuclear fusion D: Thermionic emission

Q9 : At what digit of PH scale PH is neutral?

A: 5 B: 3 C: 7 D: 10

Q10 : The Boiling Point of Ethyl Alcohol is_________?

A: 78°C B: 58°C C: 73°C D: 56°C

Q11 : The oxidation of secondary alcohol gives ?

A: alkane B: carboxylic acid C: Acetylene D: ketone

Q12 : Amino acids are a product of the digestion of: ___________?

A: Carbohydrates B: Fats C: Proteins D: Vitamins

Q13 : Identify the Lucas reagent among the following

A: Conc. HCl & Anhydrous ZnCl2 B: Dil. HCl & hydrated ZnCl2 C: Conc. HNO3 & Anhydrous ZnCl2 D: Conc. HNO3 & Anhydrous MgCl2

Q14 : For the generation of biogas, the materials commonly used are__________?

A: Animal wastes B: Forest residues C: Aquatic plants D: None of these

Q15 : Dimethyl ketones are usually characterized through_____________?

A: Tollen’s reagent B: Iodoform test C: Schiff’s test D: Benedict’s reagent

Q16 : When the radiation of light is passed through a prism, it undergoes __________?

A: reflection B: interference C: diffraction D: refraction

Q17 : The general formula for alkenes is:______________?

A: CnH2n+1 B: CnH2n+2 C: CnH2n D: CnH2n-2

Q18 : Ethene is the first member of __________?

A: Alkenes Family B: Saturated hydrocarbon C: Aromatic hydrocarbon D: None of These

Q19 : Soap is prepared by boiling caustic soda with ___________?

A: Alcohol B: Kerosene oil C: Glycerine D: Fats

Q20 : The molecular formula of Glucose is____________?

A: NH3 B: C12H22O11 C: C6H12O6 D: C6H6

Q21 : Which of the following is used in photography?

A: NaHSO3 B: Na2S2O3 C: Na2S D: Na2SO3

Q22 : Barometer was invented by _______?

A: Pascal B: Torricelli C: Newton D: Huygen

Q23 : Mass spectroscopy mainly tells about ____________?

A: Mass B: e/m ratio C: Isotopes D: None of These

Q24 : Which of the following can be separated by ” Sublimation Method”?

A: Sand and Iron Filing B: Sand and Naphthalene C: Both A & B D: None

Q25 : What is the formula of Copper Sulfate?

A: CuSO3.4H2O B: CuSO4.4H2O C: CuSO4.4H2O D: CuSO4.5H2O

Q26 : Benzene gives mainly_________?

A: Addition reaction B: Substitution reactions C: Halogenation D: All of these

Q27 : The theory which explains the behavior of particles of matter in motion is called ______?

A: Bohr’s Theory B: Dalton’s Theory C: Kinetic Molecular Theory D: None

Q28 : 24g of an unknown gas occupied 8.4dm3at STP, Identify the gas among the following

A: SO3 B: SO2 C: C6H6 D: C3H8

Q29 : Which of the following is more acidic in nature?

A: Benzene B: Phenol C: Cresol D: Aniline

Q30 : Which of the following is used with milk of lime to kill fungus and molds?

A: Chlorine B: Silver nitrate C: Copper Sulfate D: Nitric acid

Q31 : The marsh gas is ___________?

A: Ethane B: Methane C: Propane D: Butane

Q32 : What is the color of precipitates of AgI?

A: Yellow B: Light Yellow C: Brown D: Blue

Q33 : The radiations with negative charge are________.

A: Alpha radiations B: Gamma radiations C: Beta radiations D: positron

Q34 : Coal gas is made up of mostly ________ & _________?

A: Hydrogen & Water B: Hydrogen & Carbon dioxide C: Hydrogen & Methane D: Carbonmonoxdide & water

Q35 : The valency of Carbon is _________?

A: 2(Divalent) B: 3(Trivalent) C: 4(Tetravalent) D: 1(univalent)

Q36 : A metallic atom loses its valence electron to form a/an _________?

A: an anion B: a cation C: an anion – cation D: none of these

Q37 : During Electrolysis of Water the product @cathode obtained is ___________?

A: Hydrogen Gas & Water B: Oxygen Gas & Water C: CO & Water D: Hydrogen & Carbon monoxide

Q38 : During electrolysis of Water, the product obtained at cathode is ___________?

A: Hydrogen Gas &Water B: Oxygen Gas &Water C: Only oxygen D: Only Water

Q39 : The pH of milk is_______?

A: 9 B: 6.5-7 C: 8 D: 12

Q40 : The number of moles are present in 9.5g of CS2?

A: 1.5 B: 0.25 C: 0.125 D: None of These

Q41 : The rate of formation of ozone depends on the flux of:

A: visible radiation B: Ultra violet radiation C: Infrared radiation D: Gamma rays

Q42 : The petrol having octane number 80 has ____________?

A: 20% n- heptane + 80% iso-octane B: 80% n- heptane + 20% iso-octane C: 20% n- heptane + 80% n-octane D: 80% n-heptane + 20% n- octane

Q43 : The quality of petrol is improved by ____________?

A: Cracking B: Reforming C: Refining D: Hydration

Q44 : The bond energy of Hydrogen molecule is__________?

A: 110Kcal/mol B: 106Kcal/mol C: 104Kcal/mol D: 150KJcal/mol

Q45 : Shiff’s reagent gives pink color with ____________?

A: Acetone B: Acetaldehyde C: Acetic acid D: Methyl acetate

Q46 : Who discovered carbohydrates fats and proteins?

A: William Prout B: Jons Jacob Berzelius C: Anselme Payen D: Walter Bradford Cannon

Q47 : Which of the following is the Radioactive isotope of Hydrogen?

A: Protium B: Deuterium C: Tritium D: Nichromium

Q48 : The theoretical yield is, when % yield and actual yied are 55% and 24g respectively:

A: 40g B: 43.6g C: 45g D: 41.4g

Q49 : Which of the following is non spontaneous cell?

A: Electrolytic cell B: Galvanic cell C: Daniel cell D: Not

Q50 : Biodegradable pollutant is:_____________?

A: DDT B: mercury salt C: Domestic waste D: Aluminum foil

Q51 : Transition temperature for tin grey & tin white is : _____________?

A: 128.15°C B: 18°C C: 246.12°C D: 96°C

Q52 : Strong Nucleophile in polar aprotic solvent?

A: Flouride ion B: Bromide ion C: Chloride ion D: Iodide ion

Q53 : Which instrument is used to measure the viscosity.?

A: Hygrometer B: Hydrometer C: Anemometer D: Viscometer

Q54 : Identify among the following which is not the unsaturated hydrocarbon.

A: C4H6 B: C5H12 C: C3H4 D: C6H10

Q55 : Example of cross linked polymer is ____________?

A: Nylon B: Polyester C: bakelite D: PVC

Q56 : Solvent used in separation of biomolecules is _______________?

A: Acetone B: Trichloroacetic acid C: Ether D: Alcohol

Q57 : The most useful dye for those fabric which can form hydrogen bonds is:_____________?

A: Mordent dye B: Vat dye C: Acid dye D: Direct dye

Q58 : Where does the oxygen that keeps us alive come from?

A: Carbon dioxide B: Carbonates absorbed from soil C: Oxides of minerals D: Water

Q59 : Petra means ______ ?

A: Petrol B: Sediment C: Rock D: Fuel

Q60 : Bosch Process involves _______?

A: Reduction B: Oxidation C: Isomerization D: Crackling

Q61 : The product of the reaction between steam and Hydrocarbon in presence of Ni catalyst at 900°C is _____.

A: CO²+O² B: CO+H²(water gas) C: CO³+H²O D: Laughing Gas

Q62 : Lactic acid on oxidation by alkaline potassium permanganate gives:____________?

A: Propionic acid B: Cinnamic acid C: Pyruvic acid D: Tartaric acid

Q63 : What is the color of precipitates of AgBr?

A: Light brown B: Light green C: Light Blue D: Light yellow

Q64 : The maximum mass is present in 1dm3 for the following gas at STP.

A: C3H8 B: CO2 C: CO D: CS2

Q65 : The following alcohol does not undergo oxidation is _____________?

A: 1° alcohol B: 2° alcohol C: 3° alcohol D: 0° alcohol

Q66 : Charle’s Law was given by Jacques Charles in_______?

A: 1785 B: 1787 C: 1880 D: 1885

Q67 : Which of the following method is used to separate Hydrogen gas from water Gas?

A: Bosch Process B: Cyber Twinkling process C: Palladium process D: Steam process

Q68 : Cyclopentene is a _________?

A: Aromatic B: Alicyclic C: Aliphatic D: None of These

Q69 : The distribution coefficient is related to:______________?

A: Separating factors B: decreasing factors C: Colouring factors D: retardation factors

Q70 : What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ?

A: Radium dating B: Uranium dating C: Carbon dating D: Deuterium dating

Q71 : Octane rating of Gasoline can be increased by __________?

A: Refining B: Cracking C: Reforming D: None of These

Q72 : Size of colloidal particles

A: greater than true solution B: greater than suspension C: In b/w true solution & suspension D: None of These

Q73 : The phenomenon of negative catalysis is also known as:

A: auto catalysis B: Self catalysis C: inhibition D: Enzyme catalysis

Q74 : Which of the following statement is correct ?

A: size of Cl atoms > Cl- ion B: size of Na+ ion < Na atom C: size of Na atom < Na+ ion D: Cl- < Na+

Q75 : Which of following is known as Blue Vitriol or Blue Stone?

A: AgNO3 B: CuSO4.5H2O C: K2Cr2O7 D: K2CrO4

Q76 : Which of the following is known as absolute zero?

A: 0C° B: 273K C: 273.16C° D: -273.16C°

Q77 : The only non metal exists in liquid state is ___________?

A: Mercury B: Bromine C: Phosphorus D: Iodine

Q78 : In water, Hydrogen is present ________by mass.

A: 22% B: 11.11% C: 31.13% D: 15.15%

Q79 : One Water molecule can form maximum ______hydrogen bonds.

A: 2 B: 3 C: 4 D: None

Q80 : In Aldehydes and Ketones, carbon of carbonyl group is ____________?

A: sp3 hybridised B: sp2 hybridised C: sp hybridised D: Unhybridised

Q81 : The system which exchange only energy with its surroundings is called______________?

A: Open system B: closed system C: Isolated system D: All of the above

Q82 : The quantity of petrol can be increased by ___________?

A: Reforming B: Induction fueling C: Cracking D: Refining

Q83 : Nucleus of an atom was discovered by___________?

A: Goldstein B: James Chadwick C: J J Thomson D: Rutherford

Q84 : Which of the following is a soft Coal?

A: Peat B: Lignite C: Bituminous D: Anthracite

Q85 : Coinage metals are actually_________?

A: Alkali metals B: Halogens C: Alkaline earth metals D: Transition metals

Q86 : Value of normal atmospheric pressure at sea level at 0°C is______?

A: 1 atm B: 760 Torr C: 76cm of Hg D: All of these

Q87 : The process in which solid changes directly into vapours without passing through liquid state?

A: Decantation B: Sublimation C: Evaporation D: None

Q88 : Ketones and aldehydes can be distinguished using ____________?

A: Bendict solution B: Fehling solution C: Tollens reagent D: None of These

Q89 : An acid-Base Reaction is always a/an __________?

A: Endothermic B: Exothermic C: Fission D: Fusion

Q90 : Quality of petrol is measured by___________?

A: octane number B: Heptane number C: Reforming D: Refining

Q91 : Those aliphatic hydrocarbons which contain carbon to carbon single covalent bond in the chain are called ___________?

A: Alkanes B: Alkynes C: Alkenes D: a & c

Q92 : What is the mass of one mole of Iodine?

A: 74g B: 254g C: 127g D: 53g

Q93 : Black foot disease is caused by the pollution of groundwater as a consequence of increased seepage of:__________?

A: Nitrates B: Fluorides C: Arsenic D: Mercury

Q94 : On oxidation, an alcohol gives an aldehyde having same number of carbon atoms as in alcohol, the alcohol is____

A: Primary Alcohol B: Secondary Alcohol C: Tertiary alcohol D: None of These

Q95 : Alum is used by dyers of cloth:

A: As water purifier B: As mordant C: fire proofing fabrics D: Softening of hard water

Q96 : Boyle’s Law was given by the Robert Boyle in_______?

A: 1660 B: 1661 C: 1662 D: 1663

Q97 : If speed of gas molecules increases by twice on heating. What will be their kinetic energy?

A: increases by two times B: increases by four times C: decreases by two times D: decrease by four times

Q98 : Nylon-2-nylon-6 is a__________polymer?

A: biodegradable polymer B: Synthetic polymer C: Natural polymer D: Branched polymer

Q99 : The system which can exchange matter as well as energy with its surroundings is called____________?

A: open system B: Closed system C: Isolated system D: Inert system

Q100 : Vulcanized rubber is an example of ______________?

A: Natural polymers B: semisynthetic polymers C: Synthetic polymers D: None of These

Free Chemistry MCQs Mock Test Online with Answers

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