Description : A reduction reaction always involves the: w) loss of electrons x) gain of electrons y) addition of oxygen z) removal of oxygen
Last Answer : ANSWER: X -- GAIN OF ELECTRONS
Description : Chemical reaction that involves the gain of electrons?
Last Answer : Reduction
Description : Pick out the correct statement. (A) Loss of electrons from neutral atoms produces negative ions (B) The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 - 8 cm respectively (C) Gain of electrons by neutral atoms form cations
Last Answer : (B) The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 - 8 cm respectivel
Description : Chemical reaction that involves the loss of electrons?
Last Answer : Oxidation
Description : The chemical reactivity of noble gases involves the loss of electrons and hence it can form compounds with highly electronegative elements like F and
Last Answer : The chemical reactivity of noble gases involves the loss of electrons and hence it can form compounds with ... )d` and linear D. `sp` and linear
Last Answer : The chemical reactivity of noble gases involves the loss of electrons and hence it can form compounds with highly ... D. `sp^(3)d^(2)` & 2
Last Answer : The chemical reactivity of noble gases involves the loss of electrons and hence it can form compounds with highly ... A. zero B. 2 C. 6 D. 8
Description : In glycolysis, during oxidation electrons are removed by (a) ATP (b) glyceraldehyde-3-phosphate (c) NAD+ (d) molecular oxygen.
Last Answer : (c) NAD+
Description : What is formed by the loss or gain of electrons?
Last Answer : Loss or gain of electrons BY A NEUTRAL atom results in theformation of an ion. If electrons are gained, an anion is formed.If electrons are lost, a cation is formed.
Description : The manufacturing of iron from ironore involves the process of - (1) Oxidation (2) Reduction (3) Electrolysis (4) Fractional distillation
Last Answer : (2) Reduction Explanation: Iron is extracted from iron ore in a huge container called a blast furnace. Iron ores such as hematite contain iron oxide. The oxygen must be removed from the iron oxide to leave the iron behind. Reactions in which oxygen is removed are called reduction reactions.
Description : The manufacture of iron from iron ore involves the process of – (1) oxidation (2) reduction (3) fractional distillation (4) electrolysis
Last Answer : (2) reduction Explanation: The manufacture of iron ore involves the process of reduction. Important ores of iron : Haematite, Magnetite.
Description : Setting of plaster of paris involves – (1) dehydration process (2) hydration to form other hydrates (3) oxidation process (4) reduction process
Last Answer : (2) hydration to form other hydrates Explanation: The setting of plaster of Paris takes place by hydration due to the formation of a solid crystalline hydrate and hardening of Plaster of Paris is ... . A slight expansion takes place in the process and heat is evolved. This process is exothermic.
Description : The manufacturing of iron from ironore involves the process of (1) Oxidation (2) Reduction (3) Electrolysis (4) Fractional distillation
Description : The manufacture of iron from iron ore involves the process of (1) oxidation (2) reduction (3) fractional distillation (4) electrolysis
Last Answer : reduction
Description : Setting of plaster of paris involves (1) dehydration process (2) hydration to form other hydrates (3) oxidation process (4) reduction process
Last Answer : hydration to form other hydrates
Description : An oxidation process is accompanied with decrease in the (A) Number of electrons (B) Oxidation number (C) Number of ions (D) All (A), (B) & (C)
Last Answer : (A) Number of electrons
Description : What is the process by which an atom gains electrons? w) Reduction x) Neutralization y) Electrolysis z) Oxidation
Last Answer : ANSWER: W -- REDUCTION
Description : Pick out the wrong statement. (A) Theoretical flame temperature is the temperature attained by the products of combustion, when the fuel is burned without loss or gain of heat (B) ... flame temperature (D) Adiabatic flame temperatures of actual combustions are always less than the maximum values
Last Answer : (C) Burning the fuel with excess pure oxygen results in maximum theoretical flame temperature
Description : Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in (A) Air (B) Oxygen (C) Either (A) or (B) (D) Either (A) or (B) without gain or loss of heat
Last Answer : (D) Either (A) or (B) without gain or loss of heat
Description : The process, whereby electrons gain sufficient energy to be released from the surface of a thin, heated metal plate, is known as _____________. A. photo electric emission B. secondary emission C. thermionic emission D. regressive emission
Last Answer : Answer: C
Description : The reactivity of an ionic compound element is explained as its tendency to attain noble gas configuration. How do the elements do so? (1) Lose electrons (2) Gain electrons (3) Both are correct (4) Both are incorrect
Last Answer : (3) Both are correct Explanation: The reactivity of elements is explained as their tendency to attain a completely filled outer shell. This is called as having attained noble gas configuration. Once noble gas configuration is reached, the elements lose their reactivity.
Description : Rusting of Iron involves--------? A. Reduction B. Oxidation (Answer) C. Decomposition D. Displacement
Last Answer : B. Oxidation (Answer)
Description : The establishment of the overall audit strategy involves a. Determining the characteristics of the engagement that defines its scope. b. Ascertaining the reporting objectives of the engagement to plan the timing ... will determine the focus of the engagement team's efforts. d. All of the answers
Last Answer : All of the answers
Description : Oxidation involves
Last Answer : Oxidation involves A. Loss of electron B. Gain of electron C. Increase in valency of negative part D. All
Description : Which of the following reactions involves neither oxidation nor reduction ?
Last Answer : Which of the following reactions involves neither oxidation nor reduction ? A. `CrO_(4)^(2-)rarrCr_(2)O_(7)^(2-)` ... 2)O_(3)^(2-)rarrS_(4)O_(6)^(2-)`
Description : Which of the following reaction involves oxidation reduction?
Last Answer : Which of the following reaction involves oxidation reduction? A. `NaBr+Hclrarr NaCl+HBr` B. `HBr + AgNO_(3)rarr ... )O` D. `H_(2)+Br_(2) rarr 2HBr`
Description : The following are true about the oxidation of glucose: a. glycolysis produces 3% of the energy ultimately obtained from glucose b. the first stage of glycolysis involves phosphorylation of glucose to 1,6-fructose biphosphate. c. glucose enters the Kreb's cycle as pyruvate d. all above
Last Answer : all above
Description : Which of the following statements about radioactivity is are true? a)It involves outer electrons activity b)It is not affected by temperature of press
Last Answer : Which of the following statements about radioactivity is are true? a)It involves outer electrons ... affected by any other element compounded by it.
Description : (A) Heterolytic fission involves the breaking of a covalent bond in such a way that both the electrons of the shared pair are carried away by one of t
Last Answer : (A) Heterolytic fission involves the breaking of a covalent bond in such a way that both the electrons of ... IF (A) is incorrect but (R) is correct.
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 : The photo -oxidation process is initiated by (a) Heat (b) Light (c) Catalyst (d) Oxygen
Last Answer : Ans:(b)
Description : Oxidative phosphorylation is (a) formation of ATP by transfer of phosphate group from a substrate to ADP (b) oxidation of phosphate group in ATP (c) addition of phosphate group to ATP (d) formation of ATP by energy released from electrons removed during substrate oxidation.
Last Answer : (d) formation of ATP by energy released from electrons removed during substrate oxidation.
Description : The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase
Last Answer : A.substrate-level phosphorylation
Description : Most of the energy in aerobic respiration of glucose is captured by A- substrate-level phosphorylation B- electron transport of electrons from NADH C- long-chain fatty acid oxidation D- the enzyme formic-hydrogen lyase
Last Answer : electron transport of electrons from NADH
Description : The net gain of ATP/mol of palmitic acid on complete oxidation is (A) 88 (B) 105 (C) 129 (D) 135
Last Answer : Answer : C
Description : A process that occurs without loss or gain of heat is
Last Answer : A process that occurs without loss or gain of heat is A. coriolis effect B. eustatic effectq C. adiabatic D. all the above
Description : a) What is meant by periodicity in properties of elements with reference to the periodic table? (b) Why do all the elements of the same group have similar properties? (c) How will the tendency to gain electrons change as we go from left to right across a period? Why? -Science
Last Answer : (a) The repetition of same properties after definite interval is called periodicity in properties. (b) It is because they have same valence electrons therefore, have similar properties. (c) ... to right in a period because atomic size goes on decreasing and effective nuclear charge increases.
Description : Would Ne gain electrons to form an ion?
Last Answer : Need answer
Description : Do nonmetals gain electrons to become negative ions?
Description : The atoms of which elements tend to gain electrons?
Last Answer : Nonmetals tend to gain electrons.
Description : What is it called when gain of electrons or H?
Last Answer : Gain of electrons form anions (negative charged atoms).
Description : How many electrons does selenium gain or lose?
Last Answer : Selenium forms covalent bonds.
Description : How many electrons does Ca plus gain or lose?
Last Answer : You already gave the answer yourself. You see, ions don't change the number of protons and neutrons of an atom. It only changes the number of electrons. Ca originally has 20 electrons, protons, and ... of protons and neutrons can change in an atom, is by the process of nuclear fission or fusion.
Description : Does silicon gain or lose electrons?
Last Answer : silicon prefers to share electrons forming covalent bonds
Description : The more positive the E0, the greater the tendency of the oxidant member of that pair to (A) Lose electrons (B) Gain electrons (C) Lose (or) gain electrons (D) Lose and gain electrons
Last Answer : B
Description : If the more negative standard reduction potential of a redox pair, the greater the tendency to (A) To lose electrons (B) To gain electrons (C) To lose/gain electrons (D) To lose and gain electrons
Last Answer : A
Description : Which among the following is not a characteristic of transition metals? (1) Tendency to gain electrons (2) Low electronegativity (3) Low ionization energy (4) Malleability
Last Answer : (1) Tendency to gain electrons Explanation: The transition metals have a tendency to lose electrons. Since the electrons in the highest energy level are actually on a lower principal enemy number than the ... ions, the 4s electrons are always lost first; so, they form only cations (positive ions).