Description : Which is an element which never exhibits positive oxidation state in any of its compounds? -Do You Know?
Last Answer : answer:
Description : Which is an element which never exhibits positive oxidation state in any of its compounds?
Last Answer : Fluorine
Description : In which of the following compounds, nitrogen exhibits highest oxidation state ?
Last Answer : In which of the following compounds, nitrogen exhibits highest oxidation state ? A. `N_(3)H` B. `NH_(2)OH` C. `N_(2)H_(4)` D. `NH_(3)`
Description : In which of the following compounds oxygen exhibits an Oxidation state of `+2`
Last Answer : In which of the following compounds oxygen exhibits an Oxidation state of `+2` A. `H_(2)O` B. `H_(2)O_(2)` C. `OF_(2)` D. `H_(2)SO_(4)`
Description : In which of the following compounds, nitrogen exhibits highest oxidation state? (1) NH2OH (2) N2H4 (3) NH3 (4) N3H
Last Answer : N3H
Description : Fluorine has -1 oxidation state while iodine exhibits oxidation states of -1, +1, +3 ,+5 and +7. This is due to
Last Answer : Fluorine has -1 oxidation state while iodine exhibits oxidation states of -1, +1, +3 ,+5 and ... availability of d-orbitals in iodine D. none of above
Description : Oxygen exhibits least oxidation state in
Last Answer : Oxygen exhibits least oxidation state in A. `OF_(2)` B. `KO_(2)` C. `H_(2)O` D. `H_(2)O_(2)`
Description : Which of the following exhibits only +3 oxidation state? (1) Pa (2) U (3) Th (4) Ac
Last Answer : (4) Ac
Description : Assertion:- Ionic compounds exhibits electrical conductivity in solution state. Reason :- In solution state electrons of ionic compounds are free.
Last Answer : Assertion:- Ionic compounds exhibits electrical conductivity in solution state. Reason :- In solution state ... . If both Assertion & Reason are false
Description : Oxygen exhibits its `+ve` oxidation states in its
Last Answer : Oxygen exhibits its `+ve` oxidation states in its A. Fluorides B. Chlorides C. Nitrides D. Sulphides
Description : `Na_(2)S_(2)O_(3)` may react with the compounds given in coloum I. `Na_(2)S_(2)O_(3)` exhibits the properties of the type given in the coloum II, matc
Last Answer : `Na_(2)S_(2)O_(3)` may react with the compounds given in coloum I. `Na_(2)S_(2)O_(3)` exhibits the ... "),("d)",I_(2),,"s) an antichlor"):}`
Description : Positive oxidation state of an element indicates that it is -
Last Answer : Positive oxidation state of an element indicates that it is - A. Is in elementry form B. Oxidised C. Reduced D. Does not changed.
Description : Metalloid is (A) Highly electronegative in nature (B) An element which exhibits the properties of both metal & non-metal (C) An alloy (D) All (A), (B) and (C)
Last Answer : (B) An element which exhibits the properties of both metal & non-metal
Description : Metalloid is (A) An element, which exhibits the properties of both metal & non metal (B) Highly electronegative in nature (C) An alloy (D) All (A), (B) & (C)
Last Answer : (A) An element, which exhibits the properties of both metal & non metal
Description : Which element of Group 14 exhibits maximum tendency for catenation?
Last Answer : Ans. Carbon
Description : Name the element of group 14 which exhibits maximum tendency for catenation?
Last Answer : Ans –Carbon.
Description : Assertion :- Oxidation number of `S` in `HSO_(3)^(-)` is `+4`. Reason :- Sulphur is in different oxidation state in different compounds.
Last Answer : Assertion :- Oxidation number of `S` in `HSO_(3)^(-)` is `+4`. Reason :- Sulphur is in ... Reason is False. D. If both Assertion & Reason are False.
Description : In which of the following compounds iron has lowest oxidation state?
Last Answer : In which of the following compounds iron has lowest oxidation state? A. `FeSO_(4)(NH_(4))_(2)SO_(4).6H_(2)O` B. ... ` C. `Fe(CO)_(5)` D. `Fe_(0.94)O`
Description : Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen ?
Last Answer : Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen ? A. `HNO_(3), ... `NO, HNO_(3), NH_(4)Cl, N_(2)`
Description : Which of the following elements react with metals to form their binary compounds exhibiting `-3` oxidation state ?
Last Answer : Which of the following elements react with metals to form their binary compounds exhibiting `-3` oxidation state ? A. N B. P C. As D. Bi
Description : What are the minimum and maximum Oxidation Number of Cl in its compounds?
Last Answer : Ans. Minimum -0, maximum- +7.
Description : Which of the following compounds are arranged in increasing oxidation number of S :-
Last Answer : Which of the following compounds are arranged in increasing oxidation number of S :- A. `H_(2)SO_(3),H_(2)S,H_(2 ... (2)O_(3),H_(2)SO_(3),H_(2)SO_(4)`
Description : In which of the following compounds of Cr, the oxidation number Cr is not `+6` :-
Last Answer : In which of the following compounds of Cr, the oxidation number Cr is not `+6` :- A. `CrO_(3)` B. `CrO_(2)Cl_( ... `Cr_(2)O_(3)` D. `K_(2)Cr_(2)O_(7)`
Description : The breakdown of the C-C bonds of complex compounds through oxidation within the cells, leading to release of considerable amount of energy is called.
Last Answer : The breakdown of the C-C bonds of complex compounds through oxidation within the cells, leading to release of considerable amount of energy is called.
Description : In which of the following compounds, the oxidation number of the started transition metal is zero.
Last Answer : In which of the following compounds, the oxidation number of the started transition metal is zero. A. `[Ni(CO)_(4)]` ... . `[Fe(H_(2)O)_(3)](OH)_(2)`
Description : In which one of the following compounds does sulphur have the least oxidation number
Last Answer : In which one of the following compounds does sulphur have the least oxidation number A. `SO_(2)` B. `H_(2)SO_(4)` ... (2)O_(3)` D. `Na_(2)S_(4)O_(6)`
Description : During each cycle of on going fatty acid oxidation, all the following compounds are generated except (A) H2O (B) Acetyl CoA (C) Fatty acyl CoA (D) NADH FATS AND FATTY ACID METABOLISM 103
Last Answer : Answer : A
Description : During each cycle of β-oxidation of fatty acid, all the following compounds are generated except (A) NADH (B) H2O (C) FAD (D) Acyl CoA
Last Answer : Answer : B
Description : Nitrogen forms a variety of compounds in all oxidation states ranging from - (1) -3 to + 5 (2) -3 to +3 (3) -3 to + 4 (4) -3 to +6
Last Answer : (1) -3 to + 5 Explanation: Nitrogen compounds are chemical compounds containing nitrogen ions. Nitrogen forms compounds with a wide range of oxidation states that range from -3 for the ... oxidation state compounds are strong oxidizing agents. -3 oxidation state compounds are weak reducing agents.
Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification
Last Answer : (d) Anaerobic ammonium oxidation and denitrification
Description : Organisms which obtain energy by the oxidation of reduced inorganic compounds are called (a) photoautotrophs (b) chemoautotrophs (c) saprozoic (d) coproheterotrophs.
Last Answer : (b) chemoautotrophs
Description : Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils (A) Cause cholesterol build up and blood clotting (B) Are prone to rancid oxidation (C ... (as their complete removal is very difficult) (D) Have affinity to retain harmful sulphur compounds
Last Answer : (A) Cause cholesterol build up and blood clotting
Description : Nitrogen oxidation (nitrification)refers to the A- conversion of ammonium ions into nitrates through the activities of certain bacteria B- changing of atmospheric nitrogen (N2) to nitrogen compounds C- sulfur is oxidized to the sulfate form through Thiobacillusbacteria D- none of the above
Last Answer : conversion of ammonium ions into nitrates through the activities of certain bacteria
Description : The catalytic activity of transition metals and their compounds is ascribed mainly to (1) their chemical reactivity (2) their magnetic behaviour (3) their unfilled d-orbitals (4) their ability to adopt variable oxidation states
Last Answer : (4) their ability to adopt variable oxidation states
Description : Nitrogen forms a variety of compounds in all oxidation states ranging from (1) –3 to + 5 (2) –3 to + 3 (3) –3 to + 4 (4) –3 to + 6
Last Answer : –3 to + 5
Description : Assertion : In the reaction, `(1)/(2)O_(2)+F_(2)rarrOF_(2)` Fluorine is oxidant. Reason :- Fluorine cannot show positive oxidation state.
Last Answer : Assertion : In the reaction, `(1)/(2)O_(2)+F_(2)rarrOF_(2)` Fluorine is oxidant. Reason :- ... is False. D. If both Assertion & Reason are False.
Description : Positive oxidation state of oxygen is possible only in–
Last Answer : OF2
Description : Positive oxidation state of oxygen is possible only in
Description : If an element is in its lowest oxidation state, under proper conditions it can act as :
Last Answer : If an element is in its lowest oxidation state, under proper conditions it can act as : ... as reducing agent D. Neither oxidising nor reducing agent
Description : In which of the following cases, the element is oxidised into its highest oxidation state when it reacted with ozone under moist condition.
Last Answer : In which of the following cases, the element is oxidised into its highest oxidation state when it reacted with ozone under ... S B. `I_(2)` C. P D. As
Description : Antithrombin III deficiency is a commonly observed hypercoaguable state. Which of the following statement(s) is/are true concerning this condition? a. A patient with this deficiency usually ... involves acutely the administration of fresh frozen plasma followed by long-term treatment with Coumadin
Last Answer : Answer: a, b, c, d Antithrombin III deficiency accounts for about 2% of venous thrombotic event. This deficiency has been described in patients with pulmonary embolism, mesenteric venous ... is established, fresh frozen plasma should be administered followed by long-term treatment with Coumadin
Description : What determine the most likely oxidation state of an element?
Last Answer : the number of electrons the element needs to lose or gain tohave a full valence shell
Description : What is the element in third series the element with maximum oxidation state ?
Last Answer : Mn – manganese -+7-oxidation state
Description : An operational amplifier has an open loop gain of 200,000. Its output exhibits saturation at 10V. The threshold differential voltage of the amplifier is A) 25 micro-volt B) 50 micro-volt C) 5 Volts D) 10 volts
Last Answer : An operational amplifier has an open loop gain of 200,000. Its output exhibits saturation at 10V. The threshold differential voltage of the amplifier is 50 micro-volt
Description : The type of power amplifier that exhibits crossover distortion in its output is : (A) Class A (B) Class B (C) Class AB (D) Class C
Last Answer : The type of power amplifier that exhibits crossover distortion in its output is Class B