CBSE Class 12 Chemistry Aldehydes Ketones and Carboxylic Acids MCQs

Question : Which of the following forces explain the boiling point of aldehydes and ketones? (a) Hydrogen bonding        (b) van der Waal’s forces(c) Dipole-dipole attraction (d) None of these Answer : C Question : Which is highly soluble in water? (a) Methanal   (b) Propanal(…

CBSE Class 12 Chemistry Chemistry in Everyday Life MCQs

Question : Which one of the following is employed as a tranquilizer drug?(a) Promethazine(b) Valium(c) Naproxen     (d) MifepristoneAnswer : B Question : Terfenadine is commonly used as a/an(a) tranquilizer  (b) antihistamine(c) antimicrobial(d) antibioticAnswer : B Question…

CBSE Class 12 Chemistry Polymers MCQs

Question : Which of the following is not linear polymer ? (a) Bakelite  (b) Polyester(c) Cellulose (d) High density polyethene Answer : A   Question : A polymer is formed when simple chemical units (a) combine to form long chains(b) combine to form helical chains(c) break up(d…

CBSE Class 12 Chemistry Biomolecules MCQs

Question : Which of the following gives positive Fehling solution test? (a) Protein  (b) Sucrose(c) Glucose (d) Fats Answer : C   Question : Which of the following statements is incorrect regarding glucose? (a) It is an aldohexose.(b) It is also known as dextrose(c) It is…

CBSE Class 12 Chemistry Amines MCQs

Question : The total number of electrons around the nitrogen atom in amines are (a) 8 (b) 7(c) 4 (d) 3 Answer : A Question : Amines play an important role in the survival of life. Naturally they are found in (a) proteins  (b) vitamins(c) alkaloids (d) All of these Answer : D…

CBSE Class 12 Chemistry Alcohols Phenols and Ethers MCQs

Question : Cresol has (a) Alcoholic – OH (b) Phenolic – OH(c) – COOH          (d) – CHO Answer : B Question : How many isomers of C5H11OH will be primary alcohols ? (a) 5 (b) 4(c) 2 (d) 3 Answer : B Question : How many alcohol(s) with molecular formula C4H10O are chiral in…

CBSE Class 12 Chemistry Haloalkanes and Haloarenes MCQs

Question : Among the following which one can have a meso form? (a) CH3CH(OH)CH(Cl)C2H5(b) CH3CH(OH)CH(OH)CH3(c) C2H5CH(OH)CH(OH)CH3(d) HOCH2CH(Cl)CH3 Answer : B    Question : Which of the following compounds has the highest boiling point? (a) CH3CH2CH2Cl(b) CH3CH2CH2CH2Cl(c)…

CBSE Class 12 Chemistry Coordination Compounds MCQs

Question : The number of unpaired electrons in Ni(CO)4 is (a) 0 (b) 1(c) 3 (d) 5Answer : A Question : The organometallic compound is :(a) Ti(OCOCH3 )4  (b) Ti(C2H5 )4(c) Ti(OC6H5 )4     (d) Ti(OC2H5)4Answer : BQuestion : Mercuric chloride is…

CBSE Class 12 Chemistry The d and f Block Elements MCQs

Question : Malachite is an ore of  (a) Silver         (b) Mercury(c) Magnesium (d) Copper Answer : D Question : The chief ore of Hg is (a) Pyrolusite (b) Bauxite(c) Galena      (d) Cinnabar Answer : D Question : The transition element which shows the highest oxidation state…

CBSE Class 12 Chemistry The p Block Elements MCQs

Question : The ion or group detected by K2[HgI4] is   Answer : D Question : Which gas cannot be collected over water ? (a) O2 (b) PH3(c) N2 (d) SO2 Answer : D Question : The correct order of in creasing oxidising power is :   Answer : D Question : H2S does not produce…

CBSE Class 12 Chemistry General Principles and Processes of Isolation of Elements MCQs

Question : Sulfide ores are common for the metals(a) Ag, Cu and Pb  (c) Ag, Cu and Sn(b) Ag, Mg and Pb (d) Al, Cu and PbAnswer : A Question : Match List I with List II and select the correct answer using the codes given below the list (a) 1–B, 2–A, 3–C, 4–D(b) 1–…

CBSE Class 12 Chemistry Surface Chemistry MCQs

Question : The physical adsorption of gases on the solid surface is due to: (a) Covalent bond(b) Hydrogen bond(c) Ionic bond(d) Van der waal's forces Answer : D  Question : The electrical charge on a colloidal particle is observed by: (a) Ultramicroscope(b) Scattering(c)…

CBSE Class 12 Chemistry Chemical Kinetics MCQs Set A

Question : The rate constant of first order reaction is 3 × 10–6 per second. The initial concentration is 0.10 M. The initial rate is: (a) 3 × 10–7 mol/litre/sec(b) 3 × 10–8 mol/litre/sec(c) 3 × 10–5 mol/litre/sec(d) 3 × 10–8 mol/litre/sec Answer : A Question :  Choose the…

CBSE Class 12 Chemistry Electrochemistry MCQs

Question : Effect of dilution on conductivity of solution: a) Increases   b) Decreases c) Unchanged d) None of the above Answer : A Question : Through a solution of CuSO4 a current of 3 amperes was passed for 2 hours. At cathode 3 g of Cu2+ions were discharged. The current…