Description : Pyrosulphuric acid may be synthesised by dissolving `SO_(3)` in
Last Answer : Pyrosulphuric acid may be synthesised by dissolving `SO_(3)` in A. `H_(2)O` B. `H_(2)SO_(3)` C. `H_(2)SO_(4)` D. `H_(2)S_(2)O_(8)`
Description : High iodine value of a lipid indicates (A) Polymerization (B) Carboxyl groups (C) Hydroxyl groups (D) Unsaturation
Last Answer : Answer : D
Description : Iodine value is used to estimate – (1) Hydroxyl groups in oil (2) Alkali, content in oil (3) Unsaturation in oil (4) Carboxylic groups in oil
Last Answer : (3) Unsaturation in oil Explanation: Iodine value is used to estimate unsatwation in oil.
Description : The two functional groups characteristic of sugars are (a) hydroxyl and methyl (b) carbonyl and methyl (c) carbonyl and phosphate (d) carbonyl and hydroxyl.
Last Answer : (d) carbonyl and hydroxyl.
Description : The two functional groups characteristic of sugars are (1) hydroxyl and methyl (2) carbonyl and methyl (3) carbonyl and phosphate (4) carbonyl and hydroxyl
Last Answer : (4) carbonyl and hydroxyl
Description : Iodine value is used to estimate (1) Hydroxyl groups in oil (2) Alkali content in oil (3) Unsaturation in oil (4) Carboxylic groups in oil
Last Answer : Unsaturation in oil
Description : Which of the following is a hydroxyl fatty acid? (A) Oleic Acid (B) Ricinoleic acid (C) Caproic acid (D) Arachidonic acid
Last Answer : Answer : B
Description : The amino acid containing hydroxyl group: (A) Alanine (B) Isoleucine (C) Arginine (D) Threonine
Description : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This reacrtion involves electroph
Last Answer : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. ... (I) is: A. B. C. D.
Last Answer : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This ... (2)` D. `.^(*)C Cl_(3)`
Last Answer : Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. ... ` D. aq. `NaOH + C Cl_(4)`
Description : Folate as a coenzyme is involved in the transfer and utilization of (A) Amino group (B) Hydroxyl group (C) Single carbon moiety (D) Amido group
Last Answer : Answer : C
Description : Reducing ability of carbohydrates is due to (A) Carboxyl group (B) Hydroxyl group (C) Enediol formation (D) Ring structure
Last Answer : A
Description : Which of the following statement is correct about membrane cholesterol? (A) The hydroxyl group is located near the centre of the lipid layer (B) Most of the cholesterol is in the form ... forms a rigid, planar structure (D) The hydrocarbon chain of cholesterol projects into the extracellular fluid
Last Answer : C
Description : pH stands for D A. Percentage of Halogens B. Power of Hydroxyl ions C. Proportion of Hydrogen ions D. Power of Hydrogen ions
Last Answer : Power of Hydrogen ions
Description : Which one of the following is not applicable to RNA? (a) Heterocyclic nitrogenous bases (b) Chargaff ’s rule (c) Complementary base pairing (d) 5’ phosphoryl and 3’ hydroxyl ends
Last Answer : (a) Heterocyclic nitrogenous bases
Last Answer : (b) Chargaff ’s rule
Description : Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution ... ) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)
Last Answer : (c) (ii) and (iv) only
Description : Phenol is an ortho-para director because the hydroxyl group : (a) donates electrons that increase electron density at ortho and para positions favoring nucleophilic attack. (b) donates ... para positions and attracts electrons away from meta positions favoring electrophilic attack on the ring.
Last Answer : donates electrons that increase electron density at ortho and para positions favoring electrophilic attack.
Description : The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl ... of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion
Last Answer : the resonance stability associated with the carboxylate ion
Description : 2-Butanol is optically active because it contains : (a) an asymmetric carbon (b) a plane of symmetry (c) a hydroxyl group (d) a centre of symmetry
Last Answer : (a) an asymmetric carbon
Description : A functional group designated—COOH is known as a/an a. Carboxyl. b. Carbonyl. c. Amino. d. Hydroxyl.
Last Answer : a. Carboxyl.
Description : Claisen condensation gives__________ a) Hydroxyl compound b) β- keto ester c) Γ- diketone d) Α-diketone
Last Answer : b) β- keto ester
Description : Which of the following statement is correct about membrane cholesterol? (A) The hydroxyl group is located near the centre of the lipid layer (B) Most of the cholesterol is in the form ... forms a rigid, planar Structure (D) The hydrocarbon chain of cholesterol projects into the extracellular fluid
Last Answer : (C) The steroid nucleus form forms a rigid, planar Structure
Description : Name the compound formed when an hydroxyl group is attached to a phenyl group.
Last Answer : ANSWER: PHENOL
Description : A compound with molecular mass 180 is acylated with `CH_(3)COCl` to get a compound with molecular mass 390. the number of amino groups present per mol
Last Answer : A compound with molecular mass 180 is acylated with `CH_(3)COCl` to get a compound with molecular mass 390. the ... compounds is A. 2 B. 5 C. 4 D. 6
Description : what two groups of present-day vertebrates are the descendants of reptiles?
Last Answer : are alligator and snakes
Description : Numbetr of functional groups present in the following compound is :
Last Answer : Numbetr of functional groups present in the following compound is : A. 5 B. 7 C. 6 D. 8
Description : Two amino groups are present in (A) Leucine (B) Glutamate (C) Lysine (D) Threonine
Description : Element present in 1; 2 and 13-18 groups are known as;?
Last Answer : Representative elements
Description : Name the functional groups present in the following compounds.
Last Answer : a) CH 3 CHO – Aldehyde c) CH 3 CH 2 CH 2 OH – Alcohol e) Methanol – Alcohol g) Amino acids – Amines b) CH 3 CH 2 COOH – Carboxylic acid d) Methanal – Aldehyde f) Methanoic acid – Carboxylic acid
Description : On the basics of functional groups present, how are organic compounds classified?
Last Answer : Alkyl / Aryl radical (Less reactive part) and Functional group ( Active part)
Description : Identify the wrong statement with reference to the gene ‘I’ that controls ABO blood groups. (a) The gene (I) has three alleles. (b) A person will have only two of the three alleles. (c) When IA and IB are present together, they express same type of sugar. (d) Allele i does not produce any sugar.
Last Answer : (c) When IA and IB are present together, they express same type of sugar.
Description : In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be (a) B (b) O (c) AB (d) A.
Last Answer : (c) AB
Description : If you are asked to classify the various algae into distinct groups, which of the following characters you should choose? (a) Nature of stored food materials in the cell (b) Structural organization of thallus (c) Chemical composition of the cell wall (d) Types of pigments present in the cel
Last Answer : (d) Types of pigments present in the cel
Description : Which of the following blood groups may be present in the children of a couple having blood groups A and B, respectively? (1) A and B only (2) A, B and AB (3) A, B, AB and O (4) AB only
Last Answer : A, B, AB and O