Description : When ammonia is added to an alkyl halide, in the presence of base : (a) primary amines form (b) amides form (c) nitrated alkyl halides form (d) quaternary ammonium salts form
Last Answer : primary amines form
Description : Alkyl halides react with ammonia in the presence of base to form : (a) primary amines (b) nitrated alkyl halides (c) amides (d) quaternary ammonium salts
Last Answer : primary amines
Description : Assuming roughly equivalent molecular weights, which of the following would have the highest boiling point? (a) a tertiary amine (b) a quaternary ammonium salt (c) an alcohol (d) an ether
Last Answer : a quaternary ammonium salt
Description : The most potent viricidal properties: (another format of the same question: ‘Indicate which of the following has viricidal properties’) A. Sodium hypochlorite B. Chlorhexidine C. Glutaraldehyde D. Alcohol 70% E. Quaternary ammonium
Last Answer : A. Sodium hypochlorite
Description : What is the charge of ammonium compound ?
Last Answer : NH + ammonium compound infusion +1
Description : Which scientist prepares organic compound urea by heating inorganic compound ammonium cyanate ?
Last Answer : Friedrich Voller.
Description : An organic compound containing one oxygen gives red colour with cerric ammonium nitrate solution , decolourise alkaline `KMnO_(4)` , respond iodoform
Last Answer : An organic compound containing one oxygen gives red colour with cerric ammonium nitrate solution , decolourise alkaline ... underset(||)(O)-CH_(3)` D.
Description : Ammonium molybdate is used for detection of which element in organic compound :
Last Answer : Ammonium molybdate is used for detection of which element in organic compound : A. C B. N C. P D. S
Description : Which of these methyl donors is not a quanternary ammonium compound? (A) Methionine (B) Choline (C) Betain (D) Betainaldehyde
Last Answer : Answer : A
Description : Which of the following is the main compound of voter ink? (1) Silver nitrate (2) Ammonium Chloride (3) Silver Chloride (4) Ammonium Nitrate
Last Answer : (1) Silver nitrate Explanation: The chemical used in voting inks is silver nitrate. Silver nitrate is preferred because it is soluble in water, and makes an inky black solution. When put on ... Paints and Varnish Limited in Karnataka is only company in India authorised to produce the indelible ink.
Description : Pick out the wrong statement. (A) Yellow phosphorous which is the most reactive allotropic form of phosphorous is transported under water (B) Apatite is the principal material present in ... fixation means the process of bringing atmospheric nitrogen into combination i.e. into nitrogen compound fo
Last Answer : (C) Urea is more hygroscopic than ammonium nitrate
Description : Out of two anticholinesterases, drug X' is a tertiary amine while drug Y' is a quarternary ammonium compound. Then: A. Drug X' is likely to be more potent than Y' B. Drug X' will be more ... a miotic C. Drug Y' will be completely metabolized in the body D. Drug Y' will produce CNS effects
Last Answer : B. Drug ‘X’ will be more suitable to be used as a miotic
Last Answer : Silver nitrate
Description : Give any two examples of quaternary activities. -Geography
Last Answer : (i) The collection, production and dissemination of information. (ii) Personnel working in office building, elementary schools, university class rooms, etc.
Description : What bonds hold together the Quaternary structure of protein? -Biology
Last Answer : answer:
Description : What is Quaternary Salt ?
Last Answer : The compound formed by the solitary pairing of nitrogen atoms of tertiary amine with another alkyl or aryl cation N atom is called quaternary salt .
Description : What is a quaternary element ? What is a quaternary element ?
Last Answer : The elements which are called yojani 4 are called quadrilateral elements.
Description : Which one of the following economic sectors is Laxmi related to? (a) Primary (b) Secondary (c) Tertiary (d) Quaternary
Last Answer : Take the case of Laxmi with her two-hectare plot of unirrigated land. The government can spend some ... (b) Secondary (c) Tertiary (d) Quaternary
Description : The products received by exploiting natural resources come under which one of the following sectors? (a) Quaternary (b) Tertiary
Last Answer : The products received by exploiting natural resources come under which one of the following sectors? (a) ... b) Tertiary (c) Secondary (d) Primary
Description : Is a duck a Quaternary consumer?
Last Answer : What is the answer ?
Description : What is an example of Quaternary economic activity is?
Description : All the following statements about epidermal growth factor are true except (A) It is a protein (B) It possess quaternary structure (C) Its receptor is made up of a single polypeptide chain (D) Its receptor possesses tyrosine kinase domain
Last Answer : Answer : B
Description : Isoenzymes are (A) Chemically, immunologically and electrophoretically different forms of an enzyme (B) Different forms of an enzyme similar in all properties (C) Catalysing different reactions (D) Having the same quaternary structures like the enzymes
Description : In protein structure the α-helix and βpleated sheets are example of (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure
Description : During denaturation of proteins, all of the following are disrupted except (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure
Description : In quaternary structure, subunits are linked by (A) Peptide bonds (B) Disulphide bonds (C) Covalent bonds (D) Non-covalent bonds
Last Answer : Answer : D
Description : In proteins the α-helix and β-pleated sheet are examples of (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure
Description : Hemoglobin is a molecule made of four polypeptide chains, each bound to a iron-containing molecular group called a heme group. So the molecule contains four polypeptide chains and four ... depends upon the integrity of its quaternary structure. Blood Questions - Image Diversity: hemoglobin molecule
Last Answer : On average what is the life duration of the red blood cells?
Description : What is meant by quaternary structure of a pro- tein?
Last Answer : Certain polypeptides will aggregate to form one functional protein. This is referred to as the qua- ternary structure.
Description : Which are the forces that maintain the second- ary, tertiary and quaternary structures of a pro- tein?
Last Answer : Hydrogen bonds, Electrostatic bonds, Van der Waalís forces and Hydrophobic bonds.
Description : ______ form the bulk of microbial products of industrial interest. a. primary metabolites b. secondary metabolites c. tertiary metabolites d. quaternary metabolites
Last Answer : b. secondary metabolites
Description : The linear arrangement of amino acid units in proteins is called : (a) primary structure (b) secondary structure (c) tertiary structure (d) quaternary structure
Last Answer : primary structure
Description : Which of the following protein structures does “denaturation” destroy? (a) primary and secondary structures (b) secondary and tertiary structures (c) tertiary and quaternary structures (d) secondary, tertiary, and quaternary structures
Last Answer : secondary, tertiary, and quaternary structures
Description : Which of the following is the quaternary structure of proteins concerned with? (a) sequence of amino acids in the peptide chain (b) description of the way the peptide chains are arranged with ... (c) location of the disulfide bridges in the peptide chain (d) conformation of the protein backbone
Last Answer : description of the way the peptide chains are arranged with respect to each other
Description : Which type of amine produces N2 when treated with HONO? (a) Primary (b) Secondary (c) Tertiary (d) Quaternary
Last Answer : Primary
Description : The _______ structure of a protein is the sequence of amino acids. a. primary b. secondary c. tertiary d. quaternary
Last Answer : a. primary
Description : Which of the following comes under the Quaternary sector?
Last Answer : Information technology
Description : The following protein/polypeptide has a quaternary structure : (A) cc-Chymotrypsin (B) Hemoglobin (C) Insulin (D) Myoglobin
Last Answer : (B) Hemoglobin
Description : What is a relationship called when it is maintained between two entities? (A) Unary (B) Binary (C) Ternary (D) Quaternary
Last Answer : (B) Binary
Description : During which period, in the earth's history, did MOST dinosaurs become extinct? w) Carboniferous x) Cretaceous y) Quaternary z) Triassic
Last Answer : ANSWER: X -- CRETACEOUS
Description : Find the false statement: (A) The relationship construct known as the weak relationship type was defined by Dey, Storey & Barron (1999). (B) A weak relationship occurs when two ... Ternary, Quaternary and Quintary relationships are shown through a series of application scenario's and vignette's
Last Answer : (C) Conceptual model is not accurate representation of "Universe of interest".
Description : In which of the following substances all carbon atoms are quaternary in nature ? (1) Graphite (2) Diamond (3) Teflon (4) Napthalene
Last Answer : Diamond