Description : How many EDTA (lethylendiamine tetra acetic acid) molecules are required to make an octahedral complex with a Ca2+ ion.
Last Answer : EDTA is a hexadentate ligand therefore only one EDTA molecule is required to form octahedral complex.
Description : Which one of the following tests employs Ethylene Diamine Tetra Acetic Acid as a titrating agent? (a) Chlorides (b) Dissolved oxygen (c) Hardness (d) Residual chlorine
Last Answer : (c) Hardness
Description : Antidote for lead poisoning is (a) nickel (b) cisplatin (c) white of egg (d) EDTA
Last Answer : Ans:(d)
Description : Bisphosphonates are indicated in the following condition: A. Organophosphate poisoning B. Dementia C. Steven’s Johnson syndrome D. Osteoporosis
Last Answer : D. Osteoporosis
Description : A person suffering from carbon monoxide poisoning a) appears intoxicated. A person suffering from carbon monoxide poisoning appears intoxicated (from cerebral hypoxia). Other signs and symptoms include headache, ... pink to cherry red to cynanotic and pale and is not a reliable diagnostic sign.
Last Answer : a) appears intoxicated. A person suffering from carbon monoxide poisoning appears intoxicated (from cerebral hypoxia). Other signs and symptoms include headache, muscular weakness, palpitation, dizziness, and mental confusion.
Description : What are some of the signs a woman is suffering from osteoporosis?
Last Answer : The first clue of osteoporosis is brittle bones that break easily. A fall that normal would result in minor bruising in a healthy person will break a bone in a woman who is osteoporotic ... bone density in post-menopausal women, which allows treatment to begin before there are serious consequences.
Description : The following chelating agent should not be used systemically to treat acute iron poisoning in a child: A. Desferrioxamine B. Calcium edetate C. Dimercaprol D. Calcium disodium diethylene triamine penta acetic acid
Last Answer : C. Dimercaprol
Description : Which of the following additives improves the cetane number of diesel? (A) Amyl nitrate (B) Ethyl mercaptan (C) Naphthenic acid (D) Tetra ethyl lead
Last Answer : (B) Ethyl mercaptan
Description : Dormancy can be broken by the use of: a. Thiourea b. Ethlene chlorohydrin c. Ethylene acetylene d. All of the above
Last Answer : All of the above
Description : The most obvious sign of an individual suffering from carbon monoxide poisoning is: a. Muscular impairment b. Cyanosis of the lips and fingernails c. Sensory loss, particularly tunnelling of vision d. Cherry red lips and flushed cheeks
Last Answer : d. Cherry red lips and flushed cheeks
Description : Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E. (poly chloro tetra fluoro ethylene). It is also called (A) Polyurethane (B) Silicone rubber (C) Teflon (D) Epoxy resin
Last Answer : (C) Teflon
Description : Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called (A) Polyurethane (B) Silicone (C) Teflon (D) Epoxy resin
Description : P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as (A) Bakelite (B) Neoprene (C) Teflon (D) Nylon-66
Description : Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Poly tetra-fluoro-ethylene (P.T.F.E.) (D) A monomer
Last Answer : (C) Poly tetra-fluoro-ethylene (P.T.F.E.)
Description : Anti-knock for compression ignition engines is a) napthene b) tetra ethyl lead c) amyl nitrate d) hexadecane
Last Answer : Answer: c Explanation: Amyl nitrate is the anti-knock for compression ignition engines.
Description : The two reference fuel used for cetane rating are (a) Cetane and iso octane (b) Cetane and tetra ethyl lead (c) Cetance and n-heptane (d) Cetane and α- methyl naphthalene
Last Answer : Ans : d
Description : Tetra ethyle lead (TEL) is - (1) a catalyst in burning fossil fuel (2) an antioxidant (3) areductant (4) an antiknock compound
Last Answer : (4) an antiknock compound Explanation: Tetraethyl lead was extensively used as an additive to gasoline, wherein it served as an effective antiknock agent and prevented exhaust valve and seat wear. ... needed. Typical formulations called for 1 part of prepared TEL to 1260 parts untreated gasoline.
Description : Tetra-ethyl lead is added in gasoline to (A) Increase its smoke point (B) Reduce gum formation (C) Reduce the pour point (D) Increase its octane numbe
Last Answer : (D) Increase its octane numbe
Description : Which of the following is an organometallic compound? (A) Isopropyl alcohol (B) Tetra-ethyl lead (C) Zeolite (D) Cumene
Last Answer : (B) Tetra-ethyl lead
Description : Tetra ethyle lead (TEL) is (1) a catalyst in burning fossil fuel (2) an antioxidant (3) a reductant (4) an antiknock compound
Last Answer : an antiknock compound
Description : The correct structure of ethylenediamineteraacetic acid `(EDTA)` is .
Last Answer : The correct structure of ethylenediamineteraacetic acid `(EDTA)` is . A. B. C. D.
Description : With dentin bonding agent, you apply: A. First acid etching to dentine and then bonding agent B. Bonding agent directly to dentine C. Chelating agent (EDTA) and bonding agent
Last Answer : A. First acid etching to dentine and then bonding agent
Description : The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of (a) NAA, 2, 4-D (b) Phenyl acetic acid (c) Cytokinin (d) IAA, IBA.
Last Answer : a) NAA, 2, 4-D
Description : The charging of lead-acid storage batteries will always result in __________. A. dangerous acid burns B. a dangerously explosive gas being liberated C. the danger of lead poisoning D. all of the above
Last Answer : Answer: B
Description : The polymer obtained by the condensation of hexamethylene diamine and adipic acid is – (1) Nylon 66 (2) Terylene (3) Tollen's (4) Bakelite
Last Answer : (1) Nylon 66 Explanation: Polymers are very high molecular mass substances each molecule of which consists of very large number of simple structural units joined together though covalent bonds ... the repeating structural unit is derived from two monomer units - hexamethylenediamine and adipic acid.
Description : Nylon-66 is a polyamide of (A) Hexamethylene diamine and adipic acid (B) Adipic acid and methyl amine (C) Vinyl chloride and formaldehyde (D) None of these
Last Answer : (A) Hexamethylene diamine and adipic acid
Description : Nylon-66 is manufactured from (A) Adipic acid and Hexamethylene diamine (B) Caprolactam (C) Maleic anhydride and Hexamethylene diamine (D) Dimethyl terephthalate (DMT) and ethylene glycol
Last Answer : (A) Adipic acid and Hexamethylene diamine
Description : Dacron is a (A) Condensation polymerisation product of Hexamethylene diamine and adipic acid (B) Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol (C) Thermosetting material (D) None of these
Last Answer : (D) None of these
Description : Which of the following is a polymer of Hexamethylene diamine and adipic acid? (A) Nylon-6 (B) Nylon-66 (C) Nylon-6, 10 (D) Epoxy resin
Last Answer : (B) Nylon-66
Description : In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the (A) Hexamethylene diamine and the ring (B) Hexamethylene diamine and the adipic acid (C) Adipic acid and the ring (D) None of these
Last Answer : (B) Hexamethylene diamine and the adipic acid
Description : Adipic acid reacts with hexamethylene diamine to form (a) Bakelite (b) Nylon-6,6 (c) Terylene (d) Nylon-6,8
Last Answer : Nylon-6,6
Description : Nylon-6,6 is obtained from : (a) Adipic acid and hexamethylene diamine (b) Tetrafluoroethylene (c) Vinyl cyanide (d) Vinylbenzene
Last Answer : Adipic acid and hexamethylene diamine
Description : Bakelite is obtained from : (a) Phenol and formaldehyde (b) Adipic acid and hexamethylene diamine (c) Dimethyl terephthalate and ethylene glycol (d) Neoprene
Last Answer : Phenol and formaldehyde
Description : In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the (A) Diamine and the ring (B) Dibasic acid and the ring (C) Diamine and the dibasic acid (D) None of these
Last Answer : (C) Diamine and the dibasic acid
Description : Nylon-66 is manufactured from (A) Hexamethylene diamine and adipic acid (B) Hexamethylene diamine and Maleic anhydride (C) Caprolactam (D) Dimethyl terephthalate and ethylene glycol
Description : Dacron is a (A) Condensation product of Hexamethylene diamine and adipic acid (B) Thermosetting material (C) Condensation product of dimethyl terephthalate and ethylene glycol (D) None of these
Description : Nylon-6 is manufactured from (A) Caprolactam (B) Hexamethylene diamine and adipic acid (C) Hexamethylene diamine and Maleic anhydride (D) Hexamethylene diamine and Sebacic acid
Last Answer : (A) Caprolactam
Description : The polymer obtained by the condensation of hexamethylene diamine and adipic acid is : (1) Nylon 66 (2) Terylene (3) Tollen’s (4) Bakelite
Last Answer : Nylon 66
Description : Which acid is used in Lead storage batteiy? (1) Sulphuric acid (2) Nitric acid (3) Hydrochlotic acid (4) Acetic acid
Last Answer : (1) Sulphuric acid Explanation: Lead acid battery is a storage battery or secondary battery in which electrical energy can be stored as chemical energy and this chemical energy is then converted to ... of a Lead-dioxide cathode, a sponge metallic Lead anode and a Sulphuric acid solution electrolyte.
Description : Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2 . Lead pipes are readily corroded by (A) Dilute HCI (B) Acetic acid (C) Concentrated H2SO4 (D) None of these
Last Answer : (B) Acetic acid
Description : Lead pipes are not safe for carrying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)2 . Lead pipes are readily corroded by (A) Dilute HCl (B) Acetic acid (C) Concentrated H2SO4 (D) None of these
Description : Which acid is used in Lead storage battery? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Acetic acid
Last Answer : Sulphuric acid
Description : The Refrigerant 'FREON' is – (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid
Last Answer : (2) Difluoro Dichloro Methane Explanation: Dichlorodifluorornethane (R-12), is a colourless gas, and usually sold under the brand name Freon-12, is a chlorofluorocarbon halornethane (CFC), used as a ... 1994 clue to concerns about damage to the ozone layer. It is soluble in many organic solvents.
Description : The Refrigerant ‘FREON' is (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid
Last Answer : Difluoro Dichloro Methane
Description : `NH_(3) + NaOCl overset("golatin or " EDTA^(+))rarr` products The number of moles of `N - H` bonds present in one mole of the strongest nucleophile pr
Last Answer : `NH_(3) + NaOCl overset("golatin or " EDTA^(+))rarr` products The number of moles of ... mole of the strongest nucleophile present in the product is:
Description : How many EDTA molecules are required to make an octahedral complex with a `Ca^(2+)` ion?
Last Answer : How many EDTA molecules are required to make an octahedral complex with a `Ca^(2+)` ion? A. Six B. Three C. One D. Two
Description : `EDTA^(4-)` i9s ethylenediamine tetraacetate ion The total number of `N-CO-O` bond angles in `[Co(EDTA)]^(-1)` complex ion is .
Last Answer : `EDTA^(4-)` i9s ethylenediamine tetraacetate ion The total number of `N-CO-O` bond angles in `[Co(EDTA)]^(-1)` complex ion is .
Description : The donor sites of `(EDTA)^(4-)` are ?
Last Answer : The donor sites of `(EDTA)^(4-)` are ? A. O atoms only B. N atom only C. Two N atoms and four O atoms D. Three N atoms and three O atoms.