Class 12 Chemistry Ch-15 Biomolecules MCQs Exam 2027 
Class 12 Chemistry Ch-15 Biomolecules MCQs Exam 2027 Details: नीचे दिए गए सभी Questions Bihar Board परीक्षा 2027 के लिए “Very Very Important Multiple Choice Questions (MCQs) Objective” (अत्यंत महत्वपूर्ण प्रश्न) हैं। इन सभी Class 12th Chemistry /रसायन विज्ञानं ) = रसायन विज्ञानं भाग-2 (English Medium) Book Chapter-15 Biomolecules का Questions का Solve का वीडियो Youtube और Website पर Upload किया है।
Topic 1: Carbohydrates
(Classification, Monosaccharides, Disaccharides, Polysaccharides, and Properties)
Glucose is a/an: [BSEB, 2016 C]
(A) Triose
(B) Tetrose
(C) Pentose
(D) Hexose
The formula of Sucrose is: [BSEB, 2019 A]
(A) $C_{12}H_{22}O_{12}$
(B) $C_{12}H_{22}O_{11}$
(C) $C_{12}H_{25}O_{11}$
(D) $C_{12}H_{22}O_{10}$
Which of the following disaccharides is present in milk? [BSEB, 2023 A]
(A) Sucrose
(B) Lactose
(C) Maltose
(D) None of these
Carbohydrates which yield three to ten monosaccharide units on hydrolysis are called: [BSEB, 2019 A]
(A) Monosaccharides
(B) Disaccharides
(C) Oligosaccharides
(D) Polysaccharides
The product obtained from the hydrolysis of starch or cellulose is:
(A) Glucose
(B) Fructose
(C) Mannose
(D) Sucrose
The number of chiral carbons in glucose is: [BSEB, 2010 A, 2024 A]
(A) 4
(B) 5
(C) 3
(D) 1
Which of the following sugars is the sweetest? [BSEB, 2017 A]
(A) Glucose
(B) Lactose
(C) Sucrose
(D) Fructose
Which of the following carbohydrates belongs to the ‘Polysaccharide’ category?
(A) Glucose
(B) Mannose
(C) Starch
(D) Sucrose
Glucose is a: [BSEB, 2019 C]
(A) Monosaccharide
(B) Disaccharide
(C) Oligosaccharide
(D) None of these
The mixture obtained from the inversion of sucrose is called:
(A) Invert Sugar
(B) Cane Sugar
(C) Fruit Sugar
(D) Malt Sugar
Which of the following is a Ketohexose? [BSEB, 2024 A]
(A) Glucose
(B) Fructose
(C) Sucrose
(D) Starch
The general formula of carbohydrates is: [BSEB, 2020 A]
(A) $C_x(H_2O)_y$
(B) $C_x(H_2O)_{2y}$
(C) $C_xH_{2x}O$
(D) None of these
How many -OH groups are present in glucose?
(A) 4
(B) 5
(C) 6
(D) 3
Maltose on hydrolysis gives: [Exam Year 2026]
(A) Glucose + Fructose
(B) Galactose + Glucose
(C) Starch + Sucrose
(D) Two units of Glucose
Extra glucose in the body is stored in the form of:
(A) Starch
(B) Cellulose
(C) Glycogen
(D) Sucrose
Fruit sugar is called:
(A) Glucose
(B) Fructose
(C) Mannose
(D) Galactose
Complete hydrolysis of cellulose yields:
(A) L-Glucose
(B) D-Fructose
(C) D-Ribose
(D) D-Glucose
Which of the following carbohydrates is found in abundance in nature? [BSEB, 2023 A]
(A) Glucose
(B) Fructose
(C) Starch
(D) Cellulose
The enzyme used to convert glucose into ethyl alcohol is:
(A) Invertase
(B) Maltase
(C) Zymase
(D) Diastase
Carbohydrates which cannot be hydrolyzed further are: [BSEB, 2019 C]
(A) Monosaccharides
(B) Disaccharides
(C) Oligosaccharides
(D) All of these
Sucrose presents an example of:
(A) Monosaccharide
(B) Disaccharide
(C) Trisaccharide
(D) Polysaccharide
Which of the following carbohydrates is an essential component of plant cells?
(A) Starch
(B) Cellulose
(C) Sucrose
(D) Vitamin
What is finally obtained on hydrolysis of starch? [BSEB, 2019 A]
(A) Sucrose
(B) Fructose
(C) Glucose
(D) Lactose
Which of the following is a single saccharide (Monosaccharide)? [BSEB, 2017 C]
(A) Sucrose
(B) Maltose
(C) Lactose
(D) Fructose
The hydrolysis of sucrose is known as:
(A) Saponification
(B) Hydration
(C) Esterification
(D) Inversion
Cell walls are mainly composed of:
(A) Phospholipids
(B) Protein
(C) Fat
(D) Cellulose
Besides the aldehyde group, which other group is present in glucose?
(A) Keto group
(B) -OH group
(C) -COOH group
(D) None of these
Hydrolysis of maltose yields:
(A) Glucose + Fructose
(B) Glucose + Glucose
(C) Glucose + Galactose
(D) Fructose only
Glycerol is a: [BSEB, 2010 A]
(A) Trihydric alcohol
(B) Secondary alcohol
(C) Tertiary alcohol
(D) Primary alcohol
Which of the following carbohydrates gives a silver mirror with Tollen’s reagent?
(A) Sucrose
(B) Fructose
(C) Glucose
(D) Starch
Carbohydrates are tested by:
(A) Molisch Test
(B) Biuret Test
(C) Xanthoproteic Test
(D) Ninhydrin Test
The product in reaction $OHCH_2-(CHOH)_4-CHO \xrightarrow{HI, \Delta}$ is: [BSEB, 2021 A]
(A) Fructose
(B) n-hexane
(C) Gluconic acid
(D) None of these
The name of the carbohydrate found in milk is: [BSEB, 2021 A]
(A) Maltose
(B) Sucrose
(C) Lactose
(D) Fructose
Glycosidic linkage is found in:
(A) Carbohydrates
(B) Proteins
(C) Fats
(D) Nucleic acids
Which of the following carbohydrates is known as ‘Animal Starch’?
(A) Cellulose
(B) Glycogen
(C) Starch
(D) Sucrose
Saccharin is a: [BSEB, 2023 A]
(A) Aliphatic hydrocarbon
(B) Sweetening agent
(C) Polynuclear compound
(D) Sugar
Which of the following is an artificial sweetening agent? [BSEB]
(A) Saccharin
(B) Aspartame
(C) Sodium cyclamate
(D) All of these
Topic 2: Amino Acids & Proteins
(Classification, Peptide Bond, Structure, and Enzymes)
An example of an acidic amino acid is:
(A) Glycine
(B) Valine
(C) Serine
(D) Aspartic acid
The two functional groups present in amino acids are: [BSEB, 2024 A]
(A) -COOH and -NH2
(B) -OH and -CHO
(C) -CHO and -NH2
(D) -COOH and -OH
The protein responsible for blood clotting is:
(A) Albumin
(B) Globulin
(C) Fibrinogen
(D) Hemoglobin
In protein synthesis, which functional group participates in disulfide bonding?
(A) Thioether
(B) Thiol
(C) Thioester
(D) Thiol acetone
An example of a neutral amino acid is:
(A) Glycine
(B) Aspartic acid
(C) Glutamic acid
(D) Histidine
The helical structure of protein is stabilized by: [BSEB, 2024 A]
(A) Ionic bond
(B) Covalent bond
(C) Van der Waals force
(D) Hydrogen bond
What is an enzyme? [BSEB, 2021 A, 2023 A]
(A) Carbohydrate
(B) Lipid
(C) Protein
(D) None of these
The protein found in milk is:
(A) Casein
(B) Albumin
(C) Globulin
(D) Hemoprotein
The smallest and first member of the amino acid series is:
(A) Serine
(B) Valine
(C) Alanine
(D) Glycine
Which is capable of forming a Zwitter ion? [BSEB, 2021 A, 2026]
(A) $CH_3NO_2$
(B) $CH_3COOH$
(C) $CH_3CH_2NH_2$
(D) $H_2NCH_2COOH$
The final product of protein degradation is:
(A) Peptide
(B) Amino acid
(C) Carbohydrate
(D) Fat
Peptides on hydrolysis yield: [BSEB, 2018 A]
(A) Amino acids
(B) Carbohydrate
(C) Fat
(D) Vitamin
The reason for the secondary structure of protein is:
(A) Peptide bond
(B) Hydrogen bond
(C) Ionic bond
(D) Disulfide bond
Proteins are made up of:
(A) Carbohydrates
(B) Vitamins
(C) Fats
(D) Amino acids
In biological processes, enzymes are:
(A) Energy providers
(B) Immune boosters
(C) Oxygen carriers
(D) Bio-catalysts
The number of tripeptides produced by three different amino acids is:
(A) 3
(B) 4
(C) 5
(D) 6
Protein is digested by which of the following enzymes:
(A) Ptyalin
(B) Lipase
(C) Zymase
(D) Peptidases
An example of a basic amino acid is:
(A) Glutamic acid
(B) Histidine
(C) Phenylalanine
(D) Leucine
Hemoprotein is found in:
(A) Milk
(B) Blood
(C) Fat
(D) Fruits
Which amino acid is not chiral?
(A) Alanine
(B) Valine
(C) Proline
(D) Glycine
Optimum temperature for enzyme action is:
(A) 25 to 37°C
(B) 30 to 60°C
(C) 35 to 70°C
(D) 50 to 100°C
Protein is a polymer of: [BSEB, 2012 A]
(A) Glucose
(B) Terpene
(C) Amino acids
(D) Peptides
A peptide bond is formed between:
(A) -OH and -NH2
(B) -COOH and -NH2
(C) -CHO and -NH2
(D) None of these
Insulin is a/an: [BSEB, 2020 A]
(A) Vitamin
(B) Lipid
(C) Hormone
(D) Carbohydrate
Which of the following is not a Macromolecule? [Exam Year 2026]
(A) DNA
(B) Starch
(C) Palmitate
(D) Insulin
The enzyme found in human saliva is:
(A) Ptyalin
(B) Trypsin
(C) Amylopsin
(D) Steapsin
Which bond stabilizes the helical structure of protein?
(A) Dipeptide bond
(B) Hydrogen bond
(C) Ether bond
(D) Peptide bond
Hydrolysis of protein yields: [BSEB, 2018 A]
(A) Amino acids
(B) Peptides
(C) Carbohydrate
(D) Fats
Topic 3: Vitamins & Hormones
(Names, Functions, and Deficiency Diseases)
The vitamin that plays a major role in blood clotting is: [BSEB, 2024 A]
(A) Vitamin A
(B) Vitamin B
(C) Vitamin E
(D) Vitamin K
The chemical name of Vitamin B12 is: [BSEB, 2020 A]
(A) Thiamine
(B) Riboflavin
(C) Cyanocobalamin
(D) Pyridoxine
Which disease is caused by deficiency of Vitamin E? [BSEB, 2023 A]
(A) Beri-beri
(B) Scurvy
(C) Loss of reproductive capacity
(D) None of these
Vitamin C is: [BSEB, 2022 A]
(A) Ascorbic acid
(B) Nicotinic acid
(C) Citric acid
(D) Tartaric acid
Ascorbic acid is a/an: [BSEB, 2021 A]
(A) Vitamin
(B) Enzyme
(C) Protein
(D) Amino acid
‘Beri-beri’ disease is caused by the deficiency of:
(A) Vitamin B1
(B) Vitamin B2
(C) Vitamin B6
(D) Vitamin B12
Which of the following vitamins is water-soluble? [BSEB, 2023 A]
(A) A and B
(B) C and D
(C) B and C
(D) A and D
Vitamins were discovered by which scientist:
(A) Funk
(B) Haure
(C) Aristotle
(D) Stanley
The human body does not produce: [BSEB, 2021 A]
(A) Enzymes
(B) DNA
(C) Vitamins
(D) Hormones
Night blindness is caused by deficiency of: [BSEB, 2017 C]
(A) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin D
Chemical name of Vitamin A is: [BSEB, 2021 A, 2023 A]
(A) Ascorbic acid
(B) Retinol
(C) Calciferol
(D) Tocopherol
Main source of Vitamin ‘C’ is:
(A) Lemon and Orange
(B) Banana and Pineapple
(C) Apple and Papaya
(D) Paddy and Wheat
The vitamin which is not soluble in water is:
(A) Vitamin B
(B) Vitamin C
(C) Vitamin D
(D) None of these
Insulin is secreted from which of the following? [BSEB, 2023 A]
(A) Thyroid
(B) Pancreas
(C) Adrenal
(D) None of these
Deficiency of Vitamin C causes?
(A) Beri-beri
(B) Night blindness
(C) Rickets
(D) Scurvy
Which of the following is related to steroids?
(A) Vitamin E
(B) Vitamin K
(C) Vitamin C
(D) Vitamin D
The hormone secreted by the human pancreas is:
(A) Thyroid
(B) Insulin
(C) Amylopsin
(D) Steapsin
Chemical name of Vitamin B1 is: [BSEB, 2022 A]
(A) Retinol
(B) Thiamine
(C) Ascorbic acid
(D) Riboflavin
Riboflavin is the chemical name of: [Exam Year 2026]
(A) Vitamin B1
(B) Vitamin B2
(C) Vitamin B6
(D) Vitamin B Complex
Deficiency of Vitamin D causes:
(A) Scurvy
(B) Rickets
(C) Night blindness
(D) Beri-beri
Diabetes is caused by the deficiency of:
(A) Goitre
(B) Rickets
(C) Insulin
(D) Anaemia
Cyanocobalamin is the chemical name of which vitamin?
(A) Vitamin B1
(B) Vitamin B2
(C) Vitamin B6
(D) Vitamin B12
The vitamin helpful in blood clotting is: [BSEB, 2015 A, 2024 A]
(A) Vitamin A
(B) Vitamin D
(C) Vitamin E
(D) Vitamin K
Night blindness is due to deficiency of: [BSEB, 2017 C]
(A) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin D
Deficiency of Vitamin A causes: [BSEB, 2023 A]
(A) Night blindness
(B) Scurvy
(C) Beri-beri
(D) Rickets
Vitamin which is soluble in water: [BSEB, 2021 A]
(A) Vitamin A
(B) Vitamin D
(C) Vitamin E
(D) Vitamin C
Which is a fat-soluble vitamin? [BSEB, 2022 A]
(A) Vitamin B
(B) Vitamin C
(C) Vitamin D
(D) None of these
Topic 4: Nucleic Acids (DNA & RNA)
(Structure, Components, and Function)
Which pyrimidine base is present in RNA but not in DNA? [BSEB, 2013 A]
(A) Guanine
(B) Thymine
(C) Cytosine
(D) Uracil
The purine base present in RNA is:
(A) Guanine
(B) Thymine
(C) Cytosine
(D) Uracil
The sequence in nucleic acids is: [BSEB, 2018 C]
(A) Base-Phosphate-Sugar
(B) Base-Sugar-Phosphate
(C) Sugar-Base-Phosphate
(D) Phosphate-Base-Sugar
Nucleic acids are:
(A) Polymers of nucleotides
(B) Polymers of nucleosides
(C) Polymers of purine bases by phosphate ester bond
(D) Polymers of phosphate ester bonds
The common bases in DNA and RNA are:
(A) Adenine, Cytosine, Uracil
(B) Guanine, Adenine, Cytosine
(C) Guanine, Uracil, Thymine
(D) Adenine, Thymine, Guanine
DNA was discovered by:
(A) Watson and Crick
(B) William Fleming
(C) Dr. Hargobind Khorana
(D) Williamson
Two hydrogen bonds in nucleic acid bases occur between:
(A) Thymine and Cytosine
(B) Guanine and Cytosine
(C) Guanine and Adenine
(D) Adenine and Thymine
The ladder-like structure is found in:
(A) D.N.A
(B) R.N.A
(C) Protein
(D) Carbohydrate
Which bond exists between the nitrogenous base and sugar in nucleic acids?
(A) Peptide bond
(B) Glycosidic bond
(C) Hydrogen bond
(D) None of these
The function of DNA is:
(A) To synthesize RNA
(B) To synthesize necessary proteins
(C) To carry genetic traits from one generation to another
(D) All three A, B, and C
A Nucleotide consists of:
(A) Base + Sugar
(B) Base + Phosphate
(C) Base + Sugar + Phosphate
(D) Sugar + Phosphate
Messenger molecules are:
(A) d-RNA
(B) t-RNA
(C) m-RNA
(D) r-RNA
Phosphate bond is found in:
(A) Proteins
(B) Carbohydrates
(C) Fats
(D) Nucleic acids
Pyrimidine bases present in DNA are: [BSEB, 2022 A]
(A) Cytosine and Adenine
(B) Cytosine and Thymine
(C) Cytosine and Uracil
(D) Adenine and Thymine
Thymine is: [BSEB, 2011 A]
(A) 5-methyl uracil
(B) 4-methyl uracil
(C) 3-methyl uracil
(D) 1-methyl uracil
The unit of construction of nucleic acids is:
(A) Nucleoside
(B) Nucleotide
(C) Phosphate
(D) Sugar
How many hydrogen bonds are there between Cytosine and Guanine?
(A) 1
(B) 2
(C) 3
(D) 4
A Nucleoside is made of:
(A) Sugar + Nitrogenous Base
(B) Sugar + Phosphate
(C) Base + Phosphate
(D) Sugar + Base + Phosphate
Which nitrogenous base is NOT found in RNA? [BSEB, 2013 A]
(A) Adenine
(B) Guanine
(C) Uracil
(D) Thymine
The sugar present in DNA is: [BSEB, 2022 A]
(A) Ribose
(B) 2-deoxyribose
(C) Glucose
(D) Fructose
Topic 5: Bio-Metals & General Biomolecules
(Hemoglobin, Chlorophyll, Cells, and General Bio-organic chemistry)
In which of the following is cobalt present? [BSEB, 2022 A, 2026]
(A) Chlorophyll
(B) Hemoglobin
(C) Vitamin C
(D) Vitamin B12
Mg is a major constituent of which bio-molecule? [BSEB, 2022 A]
(A) Hemoglobin
(B) Chlorophyll
(C) Florigen
(D) ATP
Powerhouse of the cell is called:
(A) Golgi body
(B) Lysosome
(C) Mitochondria
(D) Ribosome
Red color of blood is due to:
(A) Thrombocytes
(B) Hemoglobin
(C) Plasma fluid
(D) Water and metallic ions
The pH value of blood is:
(A) Between 2.0 to 3.0
(B) Between 3.0 to 5.0
(C) Between 6.0 to 10.0
(D) Between 7.2 to 7.5
The total percentage of plasma in the liquid component of blood is:
(A) 15%
(B) 35%
(C) 45%
(D) 55%
Goitre is caused by the deficiency of: [BSEB, 2015 A]
(A) Iodine
(B) Beri-beri
(C) Anaemia
(D) Night blindness
Sources of fats and oils are:
(A) Milk
(B) Butter
(C) Cheese
(D) All of these
Which of the following is an Ester?
(A) Oil
(B) Fat
(C) Wax
(D) Lipid
Aniline and Acetaldehyde react to form: [BSEB, 2021 A]
(A) Carbylamine
(B) Nitrosobenzene
(C) Imine
(D) Schiff’s base
Which medicine reduces fever? [BSEB, 2009 A]
(A) Analgesic
(B) Antibiotic
(C) Antipyretic
(D) Tranquilizer
Natural rubber is a polymer of: [BSEB, 2015 A]
(A) Ethylene
(B) Vinyl chloride
(C) Isoprene
(D) Chloroprene
The main bond in the secondary structure of protein is: [BSEB, 2024 A]
(A) Peptide bond
(B) Hydrogen bond
(C) Disulfide bond
(D) Ionic bond
What group is present in glucose besides the aldehyde group?
(A) Keto group
(B) -OH group
(C) -COOH group
(D) None of these
Diabetes is caused by deficiency of:
(A) Thyroid
(B) Rickets
(C) Insulin
(D) Anaemia
Cell wall is made of:
(A) Protein
(B) Fat
(C) Cellulose
(D) Starch
Number of hydrogen bonds between Adenine and Thymine:
(A) 1
(B) 2
(C) 3
(D) 4
Number of hydrogen bonds between Cytosine and Guanine:
(A) 1
(B) 2
(C) 3
(D) 4
Vitamin helpful in blood clotting: [BSEB, 2015 A, 2024 A]
(A) Vitamin A
(B) Vitamin D
(C) Vitamin E
(D) Vitamin K
Peptide bond is formed between:
(A) -OH and -NH2
(B) -COOH and -NH2
(C) -CHO and -NH2
(D) None of these
Chemical name of Vitamin B12: [BSEB, 2022 A]
(A) Thiamine
(B) Riboflavin
(C) Cyanocobalamin
(D) Pyridoxine
Sucrose is a:
(A) Monosaccharide
(B) Disaccharide
(C) Trisaccharide
(D) Polysaccharide
Enzyme that converts glucose to ethyl alcohol:
(A) Invertase
(B) Maltase
(C) Zymase
(D) Diastase
A nucleoside consists of:
(A) Sugar + Nitrogenous Base
(B) Sugar + Phosphate
(C) Base + Phosphate
(D) Sugar + Base + Phosphate
Which base is not found in RNA? [BSEB, 2013 A]
(A) Adenine
(B) Guanine
(C) Uracil
(D) Thymine
Protein hydrolysis yields: [BSEB, 2018 A]
(A) Amino acids
(B) Peptides
(C) Carbohydrates
(D) Fats
Which carbohydrate is known as ‘Animal Starch’?
(A) Cellulose
(B) Glycogen
(C) Starch
(D) Sucrose
Deficiency of Vitamin C causes: [BSEB, 2016 A]
(A) Beri-beri
(B) Anaemia
(C) Scurvy
(D) Night blindness
Human body cannot synthesize: [BSEB, 2021 A]
(A) Enzymes
(B) DNA
(C) Vitamins
(D) Hormones
Glycosidic bond is found in:
(A) Carbohydrates
(B) Protein
(C) Fat
(D) Nucleic acid
Carbohydrate found in milk: [BSEB, 2021 A]
(A) Maltose
(B) Sucrose
(C) Lactose
(D) Fructose
Red color of blood is due to:
(A) Chlorophyll
(B) Hemoglobin
(C) Myocytes
(D) None of these
Deficiency of Vitamin D causes:
(A) Scurvy
(B) Rickets
(C) Night blindness
(D) Beri-beri
Sugar present in DNA: [BSEB, 2022 A]
(A) Ribose
(B) 2-deoxyribose
(C) Glucose
(D) Fructose
Vitamin A is called: [BSEB, 2020 A]
(A) Ascorbic acid
(B) Retinol
(C) Calciferol
(D) Tocopherol
Deficiency of Vitamin B1 causes: [BSEB, 2017 A]
(A) Scurvy
(B) Night blindness
(C) Beri-beri
(D) Rickets
Thymine is: [BSEB, 2011 A]
(A) 5-methyl uracil
(B) 4-methyl uracil
(C) 3-methyl uracil
(D) 1-methyl uracil
Function of DNA is: [BSEB, 2020 A]
(A) Synthesis of RNA
(B) Synthesis of protein
(C) Transmission of genetic traits
(D) All of the above
Molecular formula of glucose: [BSEB, 2019 A]
(A) $C_6H_{12}O_6$
(B) $C_{12}H_{22}O_{11}$
(C) $C_6H_{10}O_5$
(D) $C_5H_{10}O_5$
Hydrolysis of sucrose yields: [BSEB, 2023 A]
(A) Glucose + Fructose
(B) Glucose + Glucose
(C) Fructose + Fructose
(D) Sucrose + Glucose
Vitamin soluble in water: [BSEB, 2021 A]
(A) Vitamin A
(B) Vitamin D
(C) Vitamin E
(D) Vitamin C
Enzymes are: [BSEB, 2024 A]
(A) Lipids
(B) Vitamins
(C) Proteins
(D) Carbohydrates
Example of Zwitter ion: [BSEB, 2021 A]
(A) Ethyl amine
(B) Acetic acid
(C) Glycine
(D) Aniline
General formula of Carbohydrate: [BSEB, 2020 A]
(A) $C_x(H_2O)_y$
(B) $C_x(H_2O)_{2y}$
(C) $C_xH_{2x}O$
(D) None of these
Number of hydrogen bonds between Adenine and Thymine:
(A) 1
(B) 2
(C) 3
(D) 4
Metal present in Vitamin B12?
(A) Cobalt
(B) Iron
(C) Magnesium
(D) Zinc
Final product of protein hydrolysis:
(A) Fatty acid
(B) Glucose
(C) Amino acid
(D) Glycerol
Which base is absent in DNA?
(A) Adenine
(B) Guanine
(C) Cytosine
(D) Uracil
Bihar Board Class 12th के (Chemistry/रसायन विज्ञानं ) = रसायन विज्ञानं ‘भाग-2 (Englsih Medium) Book Chapter-15 Biomolecules and के Exam 2027 MCQs Questions Answer Key
| Q. No. | Ans. | Q. No. | Ans. | Q. No. | Ans. | Q. No. | Ans. |
| 1 | (D) | 41 | (B) | 81 | (D) | 121 | (D) |
| 2 | (B) | 42 | (A) | 82 | (B) | 122 | (D) |
| 3 | (B) | 43 | (D) | 83 | (B) | 123 | (C) |
| 4 | (C) | 44 | (C) | 84 | (B) | 124 | (C) |
| 5 | (A) | 45 | (A) | 85 | (B) | 125 | (B) |
| 6 | (A) | 46 | (D) | 86 | (C) | 126 | (B) |
| 7 | (D) | 47 | (D) | 87 | (D) | 127 | (C) |
| 8 | (C) | 48 | (B) | 88 | (K) | 128 | (C) |
| 9 | (A) | 49 | (A) | 89 | (A) | 129 | (B) |
| 10 | (A) | 50 | (B) | 90 | (A) | 130 | (C) |
| 11 | (B) | 51 | (D) | 91 | (D) | 131 | (D) |
| 12 | (A) | 52 | (D) | 92 | (C) | 132 | (B) |
| 13 | (B) | 53 | (D) | 93 | (D) | 133 | (C) |
| 14 | (D) | 54 | (D) | 94 | (A) | 134 | (B) |
| 15 | (C) | 55 | (B) | 95 | (B) | 135 | (C) |
| 16 | (B) | 56 | (B) | 96 | (A) | 136 | (A) |
| 17 | (D) | 57 | (D) | 97 | (B) | 137 | (D) |
| 18 | (D) | 58 | (A) | 98 | (A) | 138 | (A) |
| 19 | (C) | 59 | (C) | 99 | (D) | 139 | (B) |
| 20 | (A) | 60 | (B) | 100 | (A) | 140 | (C) |
| 21 | (B) | 61 | (C) | 101 | (B) | 141 | (C) |
| 22 | (B) | 62 | (C) | 102 | (D) | 142 | (A) |
| 23 | (C) | 63 | (A) | 103 | (C) | 143 | (C) |
| 24 | (D) | 64 | (B) | 104 | (C) | 144 | (B) |
| 25 | (D) | 65 | (A) | 105 | (D) | 145 | (B) |
| 26 | (D) | 66 | (D) | 106 | (B) | 146 | (B) |
| 27 | (B) | 67 | (C) | 107 | (A) | 147 | (B) |
| 28 | (B) | 68 | (C) | 108 | (B) | 148 | (C) |
| 29 | (A) | 69 | (A) | 109 | (C) | 149 | (A) |
| 30 | (C) | 70 | (A) | 110 | (A) | 150 | (D) |
| 31 | (A) | 71 | (A) | 111 | (D) | 151 | (A) |
| 32 | (B) | 72 | (C) | 112 | (B) | 152 | (A) |
| 33 | (C) | 73 | (A) | 113 | (D) | 153 | (D) |
| 34 | (A) | 74 | (C) | 114 | (B) | 154 | (C) |
| 35 | (B) | 75 | (A) | 115 | (C) | 155 | (C) |
| 36 | (B) | 76 | (B) | 116 | (B) | 156 | (A) |
| 37 | (D) | 77 | (A) | 117 | (D) | 157 | (B) |
| 38 | (D) | 78 | (C) | 118 | (D) | 158 | (A) |
| 39 | (A) | 79 | (B) | 119 | (A) | 159 | (C) |
| 40 | (C) | 80 | (D) | 120 | (D) | 160 | (D) |
Study Raw Bihar News Social Media Links:
Study Raw: Education World of India आप सभी Students के सहूलियत के लिए Social Media पर भी सारे Students को Bihar के सारे News से Updated रखते है। आपलोग नीचे दिए किसी भी Social Media से जुर सकते हैं। Follow us with following link mentioned below.
Bihar मे 4-Year Graduation का पूरा Syllabus सभी University के लिए Download करे नीचे दिए Link से
| University Name | Syllabus |
|---|---|
| BRABU Universit BA BSc BCom Syllabus | Syllabus |
| LNMU Universit BA BSc BCom Syllabus | Syllabus |
| TMBU Universit BA BSc BCom Syllabus | Syllabus |
| VKSU Universit BA BSc BCom Syllabus | Syllabus |
| BNMU Universit BA BSc BCom Syllabus | Syllabus |
| Jai Prakash Universit BA BSc BCom Syllabus | Syllabus |
| Patliputra University BA BSc BCom Syllabus | Syllabus |
| Purnea University BA BSc BCom Syllabus | Syllabus |
| Magadh University BA BSc BCom Syllabus | Syllabus |
| Munger University BA BSc BCom Syllabus | Syllabus |
| Patna University BA BSc BCom Syllabus | Syllabus |
Leave a Reply