Chemistry MCQs with Answers – Free Bio MCQs Test for All Topics

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Q1 : Lactic acid on oxidation by alkaline potassium permanganate gives:____________?

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

Q2 : Formaldehyde on condensation in the presence of calcium hydroxide: ______________?

A: Formose B: Fructose C: Maltose D: Xylose

Q3 : The fundamental way to transfer energy are:_____________?

A: pressure and temperature B: pressure and volume C: heat and volume D: heat and work

Q4 : The main contributor to toxicity of detergent:

A: Na-Silicate solution B: Na-sulphate solution C: Na-Chloride solution D: K-Chloride solution

Q5 : The usual property of ionic crystal are:_____________?

A: Stable B: gaseous form C: Unstable D: Compound forming

Q6 : The second nuclear weapons used in warfare over Nagasaki, Japan, contain energy equal about of TNT?

A: 1.5 kilotons B: 20 kilotons C: 25 kilotons D: 30 kilotons

Q7 : The distribution coefficient is related to:______________?

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

Q8 : Which one of the following gives the measure of Organic pollution in water?

A: COD B: DO C: PH D: Salinity

Q9 : The medium which interact with long lived pollutant is:_____________?

A: Source B: Receptor C: Sink D: All of them

Q10 : Aluminum foil

A: Water pollution B: Sound pollution C: Soil pollution D: Air pollution

Q11 : Biodegradable pollutant is:_____________?

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

Q12 : Surface water contains:_____________?

A: only salt B: Organic matter C: Salt & Organic matter D: Suspended impurity

Q13 : Ozone is formed in the upper layer of the atmosphere from oxygen by action of:____________?

A: Free radicals B: Cosmic rays C: Nitrogen oxides D: UV -rays

Q14 : which of the following pair is not distinguished by passing H2S?

A: Hg, Pb B: Zn, Mn C: As, CD D: Cd , Pb

Q15 : The phosphate present in sewage water which cause eutrophication Can be removed by adding:

A: Alum B: Chlorine C: Lime D: permangnate

Q16 : 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

Q17 : Alum is used by dyers of cloth:

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

Q18 : What will be the PH of 0.01M ammonium chloride solution containing 10 mol per liter of ammonium chloride (pkb=4.76)?

A: 5.24 B: 6.24 C: 7.24 D: 8.24

Q19 : Product of Nucleophilic Substitution Uni Molecular reaction is in case of chiral substrate?

A: Inversion B: Retention C: Recemic Mixture D: Stereospecific

Q20 : Strong Nucleophile in polar aprotic solvent?

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

Q21 : Solvent used in separation of biomolecules is _______________?

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

Q22 : Lead battery is secondary battery the paste used in it is______________?

A: Magnese dioxide B: Zinc chloride C: Ammonium chloride D: AOT

Q23 : Which of the following is used in photography?

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

Q24 : Which of the following has lowest lattice energy?

A: LiF B: NaCl C: KBr D: CsI

Q25 : What is the formula of Silver nitrate?

A: AgNO B: AgNO2 C: AgNO3 D: AgNO4

Q26 : Silver nitrate is also known as____________?

A: Blue Stone B: Blue Vitriol C: Lunar Caustic D: Both A & B

Q27 : Which of the following produces black spots when it comes in contact with organic substances such as skin and cellulose?

A: CuSO4 B: AgNO3 C: K2MnO4 D: CH3COOH

Q28 : What is the formula of Copper Sulfate?

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

Q29 : Which of following is known as Blue Vitriol or Blue Stone?

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

Q30 : Silver nitrate is used in laboratory as a reagent for the detection and determination of____________?

A: Alkali metals B: Aldehydes C: Halides D: Ketones

Q31 : What is the color of precipitates of AgCl?

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

Q32 : What is the color of precipitates of AgI?

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

Q33 : What is the color of copper sulfate crystalline?

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

Q34 : Which of the following is the use of Silver nitrate?

A: used as mordant in dyeing B: used in photography and medicines C: used in making green pigments D: All of these

Q35 : What is the color of precipitates of AgBr?

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

Q36 : 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

Q37 : A gas was found to have a density of 0.0847g/L at 17°C and a pressure of 760 torr. The gas must be?

A: CH4 B: He C: N2 D: None of These

Q38 : At what digit of PH scale PH is neutral?

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

Q39 : 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

Q40 : Alkaline PH scale starts from?

A: 8 to 14 B: 6 to 10 C: 7 to 11 D: 0 to 14

Q41 : The Substance which resist in change in PH is called?

A: Neutralization B: Osmosis C: Buffer D: Active transport

Q42 : Quality of petrol is measured by___________?

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

Q43 : Who is often referred to as the “father of Chemistry”?

A: Isaac Newton B: Antoine Lavoisier C: Dmitri Mendeleev D: Albert Einstein

Q44 : 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

Q45 : According to Kinetic Molecular Theory gas molecules move in_______path?

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

Q46 : 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

Q47 : Barometer was invented by _______?

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

Q48 : Boyle’s Law was given by the Robert Boyle in_______?

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

Q49 : Which of the following is known as absolute zero?

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

Q50 : Charle’s Law was given by Jacques Charles in_______?

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

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Chemistry MCQs with Answers – Free Bio MCQs Test for All Topics

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Chemistry MCQs with Answers – Free Bio MCQs Test for All Topics

Looking for Chemistry MCQs with answers? Get topic-wise Bio MCQs tests for NEET, MDCAT, and competitive exams. Practice now and test your knowledge with educatehow.com

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