Description : Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon
Last Answer : Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon
Description : The action potential of a neuron a. is initiated by efflux of Na+ b. is terminated by efflux of K+ c. declines in amplitude as it moves along the axon d. results in a transient reversal of the ... the cell membrane e. is not associated with any net movement of Na+ or K+ across the cell membrane
Last Answer : is terminated by efflux of K+
Description : The rusting of iron is a/an - (1) physical change (2) electrochemical change (3) electrical change (4) None of the above
Last Answer : (2) electrochemical change Explanation: When iron is exposed to air and moisture, its surface gradually corroded and converted into a brown mass. The rusting of iron is due to the formation of hydrated ion. Rusting is an electro-chemical process.
Description : Indicate the HPLC detector that is most sensitive to change in temperature : (A) PDA detector (B) Refractive Index detector (C) Electrochemical detector (D) Fluorescence detector
Last Answer : (B) Refractive Index detector
Description : The rusting of iron is a/an (1) physical change (2) electrochemical change (3) electrical change (4) None of the above
Last Answer : electrochemical change
Description : Which of the stamp initiates the routing process in DTS?
Last Answer : SIGNED
Description : Why are the dauntless initiates ranked?
Last Answer : the dauntless initiatives get ranked so at the end of initiation they can see where they placed and if they made the final cut
Description : When the body temperature rises a center in the brain initiates physiological changes decrease the body temperature. this is an example of?
Last Answer : What is the answer ?
Description : The first amino acyl tRNA which initiates translation in prokaryotes is (A) Mehtionyl tRNA (B) Formylmethionyl tRNA (C) Tyrosinyl tRNA (D) Alanyl tRNA
Last Answer : Answer : B
Description : The first amino acyl tRNA which initiates translation in eukaryotes is (A) Mehtionyl tRNA (B) Formylmethionyl tRNA (C) Tyrosinyl tRNA (D) Alanyl tRNA
Last Answer : Answer : A
Description : The saliva pH is approximately 6.8. It is thus a slightly acid pH. Saliva lubricates the food bolus and initiates the enzymatic extracellular digestion of food. It also works as a buffer for the ... 's milk and in the mucosae of the intestine and airways) that protect the organism against pathogens.
Last Answer : What is the salivary digestive enzyme? Which type of food does it digest and into which smaller molecules does it transform the food?
Description : The computer which initiates information transfer A. Master B. Station C. Slave D. Mainframe
Last Answer : A. Master
Description : Which part of the brain initiates all vol- untary activities?
Last Answer : Cerebrum
Description : Which are benefit of input/output interrupt: a. It is an external analogy to exceptions b. The processor initiates and perform all I/O operation c. The data is transferred into the memory through interrupt handler d. = Alllof these
Last Answer : d. = Alllof these
Description : The following are true about cardiac contraction: a. the P wave initiates the atrial contraction b. atrial contribution to ventricular filling is most effective at fast heart rate. c. b wave is generated by atrial contraction d. fourth heart sound occurs during atrial contraction
Last Answer : fourth heart sound occurs during atrial contraction
Description : Select the option which correctly matches the endocrine gland with its hormone and its function. Endocrine Hormone Function gland (a) Placenta Estrogen Initiates secretion of the milk (b) Corpus ... of sperms (d) Ovary FSH Stimulates follicular development and the secretion of estrogens
Last Answer : (c) Leydig’s Androgen Initiates the cells production of sperms
Description : A catalyst (A) Initiates a reaction (B) Lowers the activation energy of reacting molecules (C) Is capable of reacting with any one of the reactants (D) Cannot be recovered chemically unchanged at the end of a chemical reaction
Last Answer : (C) Is capable of reacting with any one of the reactants
Description : Pick out the correct statement. (A) In catalytic reactions, the catalyst reacts with the reactants (B) A catalyst initiates a chemical reaction (C) A catalyst lowers the activation energy of ... molecules (D) A catalyst cannot be recovered chemically unchanged at the end of the chemical reaction
Last Answer : (C) A catalyst lowers the activation energy of the reacting molecules
Description : Promoter (A) Initiates a chemical reaction and is a catalyst by itself (B) Alters the position of equilibrium in a reversible reaction (C) Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals (D) All (A), (B) and (C)
Last Answer : (C) Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals
Description : Pick out the wrong statement. (A) A catalyst does not alter the final position of equilibrium in a reversible reaction (B) A catalyst initiates a reaction (C) A catalyst is specific in reaction (D) A catalyst remains unchanged in chemical composition at the end the reaction
Last Answer : (B) A catalyst initiates a reaction
Description : An appliance manufacturer initiates a business plan that gets translated into an operational plan called a a)Production plan b)Staffing plan c)Master production schedule d)Work-force schedule
Last Answer : d)Work-force schedule
Description : 26.A major department store initiates a business plan that gets translated into an operational plan called a a)Production plan b)Staffing plan c)Master production schedule d)Work-force schedule
Last Answer : c)Master production schedule
Description : 9 Which one of the following antibodies initiates an allergic reaction? a) Ig A b) Ig E c) Ig G d) Ig M
Last Answer : ANS: b Ig E
Description : A hardened firewall host on an intranet (i) has a proxy application gateway program running on it (ii)Allows specified internet users to access specified services in the intranet (iii) Initiates all internet activities requested by clients ... ii b. i, ii, iii c. i, ii, iii, iv d. ii, iii, iv
Last Answer : c. i, ii, iii, iv
Description : What is it called when the change in cell voltage occurs when a neuron is stimulated?
Last Answer : Need answer
Description : Using the electrochemical series, how can I explain why manufacturers coat steel nails with zinc rather than copper?
Last Answer : Because the use of zinc is…......... Nah you do the work , or its called cheating :P
Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e- ... the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry
Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → = Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V At cathode (reduction) : MnO-4(aq) + 8H+ ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.
Description : The chemistry of corrosion of iron is essentially an electrochemical phenomenon. Explain the reactions occurring during the corrosion of iron in the atmosphere. -Chemistry
Last Answer : The mechanism of corrosion is explained on the basis of electrochemical theory. By taking example of rusting of iron, we Refer tothe formation of small electrochemical cells on the surface of iron. The redox reaction involves ... net resultant Redox reaction is 2Fe(s) + O2 (g) + 4H+ → 2Fe2+ + 2H2O
Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + ... -reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry
Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V Af cathode (reduction) : MnO-4(aq) + 8H+ ( ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.
Description : What is Electrochemical Equivalence ?
Last Answer : One ampere conducts an electric current for one second, that is , one coulomb conducts an electric current.
Description : What is Electrochemical Cell ?
Last Answer : Electrochemical cell is a type of cell through which electricity can be generated from chemical energy.
Description : In the commercial electrochemical process for aluminium extraction, the electrolyte used is
Last Answer : In the commercial electrochemical process for aluminium extraction, the electrolyte used is A. `Al(OH)_(3)`in NaOH ... of AlO (OH) and `Al(OH)_(3)`
Last Answer : In the commercial electrochemical process for aluminium extraction, the electrolyte used is A. `Al(OH)_(2)` is NaOH ... Al_(2)O_(3)` and `Al(OH)_(3)`
Description : ELECTROCHEMICAL PRINCIPLE OF METALLURGY
Last Answer : ELECTROCHEMICAL PRINCIPLE OF METALLURGY A. In simple electrolysis, the `M^(n^(+))` ions are ... +ve and the reaction would not be feasible.
Description : Electrochemical process (electrolysis of fused salt) is empolyed to extract
Last Answer : Electrochemical process (electrolysis of fused salt) is empolyed to extract A. Iron B. Mg C. Na D. Both Na and Mg
Description : In an electrochemical cell where are electrons produced?
Last Answer : at the anode
Description : n electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a – (1) Power transmittor (2) Battery (3) Uninterrupted power supply (UPS) (4) Generator
Last Answer : (3) Uninterrupted power supply (UPS) Explanation: A Galvanic cell, also known as battery, is an electro-chemical cell that derives electrical energy from spontaneous redox reactions taking place within ... produce direct current. A battery is a set of galvanic cells that are connected in parallel.
Description : The deterioration of a metal by an electrochemical process is commonly termed as – (1) Erosion (2) Corrosion (3) Passivation (4) Abrasion
Last Answer : (2) Corrosion Explanation: Corrosion can be defined as the deterioration of materials by chemical processes.
Description : The device used to convert solar energy into electricity is – (1) Photovoltaic cell (2) Daniell cell (3) Electrochemical cell (4) Galvanic cell
Last Answer : (1) Photovoltaic cell Explanation: Sunlight is converted into electricity using photovoltaics (PV). A photovoltaic system employs solar panels composed of a number of solar cells to supply usable solar power.
Description : Corrosion involves exchange of electrons in __________ corrosion. (A) Chemical (B) Electrochemical (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) & (B)
Description : Pick out the correct statement. (A) Stainless steel is nothing but chromium coated steel (B) Hardening of a soft metal can be done by alloying it with another metal or non-metal (C) ... its temporary distortion under the action of applied stress (D) Rusting of iron is not electrochemical in nature
Last Answer : (B) Hardening of a soft metal can be done by alloying it with another metal or non-metal
Description : What would happen if salt bridge is not used in electrochemical cell ?
Last Answer : Ans. :- The cell works for short time .After that electrons stop flowing from anode to cathode due to accumulation of +ve ions at anode and no reduction will occur at cathode . The result is that current stops flowing and cell will not work .
Description : What is meant by Electrochemical cell . Why is it called as galvanic cell and Voltaic cell ?
Last Answer : Ans. :- The cell which converts chemical energy into electrical energy . It is called as galvanic cell and Voltaic cell after the name of scientists who first tried to convert chemical energy into electrical energy .
Description : What is the principle of electrochemical cell ?
Last Answer : Ans .:- The cell works on the principle of redox reactions . One of the reactant undergoes oxidation while another undergoes reduction
Description : Copper and Silver lie below in the electrochemical series and yet they are found in the combined state as sulphide in nature.Comment.
Last Answer : Ans. : Due to high polarizing power of Cu and Ag ions, their sulphides are even more stable than the metals.
Description : Enzymes are organic catalysts used in the __________ reactions. (A) Chemical (B) Biochemical (C) Photochemical (D) Electrochemical
Last Answer : (B) Biochemical
Description : Electrochemical corrosion can occur, only if __________ is present in contact with metal. (A) Air (B) Oxygen (C) Liquid medium (D) Gaseous medium
Last Answer : (C) Liquid medium
Description : Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its (A) Lower cost (B) Abundant availability (C) Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry (D) None of these
Last Answer : (C) Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry