Positive oxidation state of oxygen is possible only in–

Positive oxidation state of oxygen is possible only in–
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1 Answer

Answer :

OF2
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Related questions

Positive oxidation state of oxygen is possible only in

Description : Positive oxidation state of oxygen is possible only in

Last Answer : OF2

Which is an element which never exhibits positive oxidation state in any of its compounds? -Do You Know?

Description : Which is an element which never exhibits positive oxidation state in any of its compounds? -Do You Know?

Last Answer : answer:

Assertion : In the reaction, `(1)/(2)O_(2)+F_(2)rarrOF_(2)` Fluorine is oxidant. Reason :- Fluorine cannot show positive oxidation state.

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.

Positive oxidation state of an element indicates that it is -

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.

Which is an element which never exhibits positive oxidation state in any of its compounds?

Description : Which is an element which never exhibits positive oxidation state in any of its compounds?

Last Answer : Fluorine

Which is an element which never exhibits positive oxidation state in any of its compounds?

Description : Which is an element which never exhibits positive oxidation state in any of its compounds?

Last Answer : Fluorine

Oxygen has (+) oxidation number only in – (1) OF2 (2) Cl2O (3) H2O (4) N2O

Description : Oxygen has (+) oxidation number only in – (1) OF2 (2) Cl2O (3) H2O (4) N2O

Last Answer : (1) OF2 Explanation: In case of F2O, oxygen is not the most electronegative element. The fluorine is more electronegative and has an oxidation state of -1. In this case, the oxygen has an oxidation state of +2.

Oxygen has (+) oxidation number only in (1) OF2 (2) Cl2O (3) H2O (2) N2O

Description : Oxygen has (+) oxidation number only in (1) OF2 (2) Cl2O (3) H2O (2) N2O

Last Answer : OF2

Oxygen exhibits least oxidation state in

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)`

In which of the following compounds oxygen exhibits an Oxidation state of `+2`

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)`

What is the oxidation state of oxygen in carbon dioxide?

Description : What is the oxidation state of oxygen in carbon dioxide?

Last Answer : The oxidation state of oxygen in carbon dioxide is 2-.

Which is the compound in that oxygen shows + 2 oxidation state?

Description : Which is the compound in that oxygen shows + 2 oxidation state?

Last Answer : F2O

Which is the compound in that oxygen shows + 2 oxidation state?

Description : Which is the compound in that oxygen shows + 2 oxidation state?

Last Answer : F2O

A breakable, mercury-filled thermometer should not be used in a lead-acid battery to measure electrolyte temperature, as an accidental breakage can cause ____________. A. severe sparking and explosions B. rapid oxidation of battery plates C. violent gassing at the positive plates D. corrosion on the battery terminals

Description : A breakable, mercury-filled thermometer should not be used in a lead-acid battery to measure electrolyte temperature, as an accidental breakage can cause ____________. A. severe sparking and explosions ... battery plates C. violent gassing at the positive plates D. corrosion on the battery terminals

Last Answer : Answer: A

In which of the following the oxidation number of oxygen has been arrangd in increasing order :-

Description : In which of the following the oxidation number of oxygen has been arrangd in increasing order :-

Last Answer : In which of the following the oxidation number of oxygen has been arrangd in increasing order :- A. `OF_(2) lt ... ) lt OF_(2) lt O_(3) lt BaO_(2)`

Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four oxygen atoms are involved in peroxide linkage.

Description : Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four oxygen atoms are involved in peroxide linkage.

Last Answer : Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four ... Reason is False. D. If both Assertion & Reason are False.

Select the compound in which the oxidation number of oxygen is `-1` :-

Description : Select the compound in which the oxidation number of oxygen is `-1` :-

Last Answer : Select the compound in which the oxidation number of oxygen is `-1` :- A. `H_(2)O` B. `O_(2)F_(2)` C. `Na_(2)O` D. `BaO_(2)`

What is the sum of highest and lowest oxidation states for oxygen family

Description : What is the sum of highest and lowest oxidation states for oxygen family

Last Answer : What is the sum of highest and lowest oxidation states for oxygen family

What is the sum of highest and lowest oxidation states for oxygen family

Description : What is the sum of highest and lowest oxidation states for oxygen family

Last Answer : What is the sum of highest and lowest oxidation states for oxygen family

In which of the following conversions all the three oxygen atoms of `O_(3)` molecules are utilised for oxidation: I. Ferrous oxide to ferric oxide II.

Description : In which of the following conversions all the three oxygen atoms of `O_(3)` molecules are utilised for oxidation: I. Ferrous oxide to ferric oxide II.

Last Answer : In which of the following conversions all the three oxygen atoms of `O_(3)` molecules are utilised for ... and IV only D. II, III and IV only

Which reagent does not give oxygen as one of the product during oxidation with ozone?

Description : Which reagent does not give oxygen as one of the product during oxidation with ozone?

Last Answer : Which reagent does not give oxygen as one of the product during oxidation with ozone? A. `SO_(2)` B. `SnCl_(2)//HCl` C. `H_(2)S` D. both 1 & 2

The oxidation number of oxygen in `K_(2)O, K_(2)O_(2)` and `KO_(2)` are respecitvely

Description : The oxidation number of oxygen in `K_(2)O, K_(2)O_(2)` and `KO_(2)` are respecitvely

Last Answer : The oxidation number of oxygen in `K_(2)O, K_(2)O_(2)` and `KO_(2)` are respecitvely A. `-2,-1,-(1)/(2)` B. `-( ... 1,-2,-(1)/(2)` D. `-2,-(1)/(2),-1`

Oxygen exhibits its `+ve` oxidation states in its

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

Ozone on reaction with one of the following reagents uses all its 3 oxygen atoms for oxidation

Description : Ozone on reaction with one of the following reagents uses all its 3 oxygen atoms for oxidation

Last Answer : Ozone on reaction with one of the following reagents uses all its 3 oxygen atoms for oxidation A. `SO_(2)` B. ` ... of HCl C. `CH_(2)=CH_(2)` D. All

The oxidation number of oxygen in `OF_(2)` is

Description : The oxidation number of oxygen in `OF_(2)` is

Last Answer : The oxidation number of oxygen in `OF_(2)` is A. `-1` B. `-2` C. `+1` D. `+2`

Vitamin E protects the polyunsaturated fatty acids from oxidation by molecular oxygen in the formation of (A) Superoxide (B) Peroxide (C) Trioxide (D) All of these

Description : Vitamin E protects the polyunsaturated fatty acids from oxidation by molecular oxygen in the formation of (A) Superoxide (B) Peroxide (C) Trioxide (D) All of these

Last Answer : Answer : B

Methemoglobin is formed as a result of the oxidation of haemoglobin by oxidation agent: (A) Oxygen of Air (B) H2O2 (C) K4Fe(CN)6 (D) KMnO4

Description : Methemoglobin is formed as a result of the oxidation of haemoglobin by oxidation agent: (A) Oxygen of Air (B) H2O2 (C) K4Fe(CN)6 (D) KMnO4

Last Answer : Answer : C

Oxidation is a process which involves the 1. Loss of electrons 2. Gain of oxygen 3. Gain of electrons 4. Loss of oxygen The correct answers are: (a) 1 and 2 (b) 2 and 4 (c) 2 and 3 (d) 3 and 4

Description : Oxidation is a process which involves the 1. Loss of electrons 2. Gain of oxygen 3. Gain of electrons 4. Loss of oxygen The correct answers are: (a) 1 and 2 (b) 2 and 4 (c) 2 and 3 (d) 3 and 4

Last Answer : Ans:(c)

The photo -oxidation process is initiated by (a) Heat (b) Light (c) Catalyst (d) Oxygen

Description : The photo -oxidation process is initiated by (a) Heat (b) Light (c) Catalyst (d) Oxygen

Last Answer : Ans:(b)

BOD stands for : (1) Biological oxidation demand (2) Biological oxygen demand (3) Biochemical oxygen demand (4) Biotic oxidation demand

Description : BOD stands for : (1) Biological oxidation demand (2) Biological oxygen demand (3) Biochemical oxygen demand (4) Biotic oxidation demand

Last Answer : (3) Biochemical oxygen demand Explanation: BOD stands for Biochemical Oxygen Demand. It is the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a ... in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20°C.

(2) amount of oxygen used for biochemical oxidation Explanation: Biochemical oxygen demand or B.O.D. is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period. The term also refers to a chemical procedure for determining this amount. This is not a precise quantitative test, although it is widely used as an indication of the organic quality of water.

Description : (2) amount of oxygen used for biochemical oxidation Explanation: Biochemical oxygen demand or B.O.D. is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to ... quantitative test, although it is widely used as an indication of the organic quality of water.

Last Answer : The addition of gypsum to port-land cement helps in : (1) increasing the strength of cement (2) rapid setting of cement (3) preventing rapid setting of cement (4) reduction in the cost of cement

Which conditions are fulfilled in case of combustion? (a) Oxygen is reduced (b) Burning compound undergoes oxidation (c) Oxygen is reducing agent (d) Both (a) and (b)

Description : Which conditions are fulfilled in case of combustion? (a) Oxygen is reduced (b) Burning compound undergoes oxidation (c) Oxygen is reducing agent (d) Both (a) and (b)

Last Answer : (d) Both (a) and (b)

In glycolysis, during oxidation electrons are removed by (a) ATP (b) glyceraldehyde-3-phosphate (c) NAD+ (d) molecular oxygen.

Description : In glycolysis, during oxidation electrons are removed by (a) ATP (b) glyceraldehyde-3-phosphate (c) NAD+ (d) molecular oxygen.

Last Answer : (c) NAD+

Low temperature oxidation of coal during storage does not decrease its (A) Oxygen content (B) Caking power (C) Calorific value (D) None of these

Description : Low temperature oxidation of coal during storage does not decrease its (A) Oxygen content (B) Caking power (C) Calorific value (D) None of these

Last Answer : (D) None of these

Low temperature oxidation of coal resulting from bad storage conditions does not decrease its (A) Caking power (B) Calorific value (C) Hydrogen content (D) Oxygen content

Description : Low temperature oxidation of coal resulting from bad storage conditions does not decrease its (A) Caking power (B) Calorific value (C) Hydrogen content (D) Oxygen content

Last Answer : (D) Oxygen content

Low temperature oxidation of stored coal results in the (A) Decrease in its caking power & calorific value (B) Decrease in its carbon & hydrogen content (C) Increase in its oxygen content (D) All (A), (B) and (A)

Description : Low temperature oxidation of stored coal results in the (A) Decrease in its caking power & calorific value (B) Decrease in its carbon & hydrogen content (C) Increase in its oxygen content (D) All (A), (B) and (A)

Last Answer : (D) All (A), (B) and (A)

Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. (A) Coal ash (B) Potassium cyanide (C) Ortho-xylene (D) None of these

Description : Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. (A) Coal ash (B) Potassium cyanide (C) Ortho-xylene (D) None of these

Last Answer : (B) Potassium cyanide

Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)

Description : Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an ... 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

During manufacture of H2SO4 , the oxidation of SO2 to SO3 by oxygen is an endothermic reaction. The yield of SO3 will be maximised, if the (A) Temperature is increased (B) Pressure is reduced (C) Temperature is increased and pressure is reduced (D) Temperature is reduced and pressure is increased

Description : During manufacture of H2SO4 , the oxidation of SO2 to SO3 by oxygen is an endothermic reaction. The yield of SO3 will be maximised, if the (A) Temperature is increased (B) Pressure is reduced (C) Temperature is increased and pressure is reduced (D) Temperature is reduced and pressure is increased

Last Answer : (D) Temperature is reduced and pressure is increased

Low purity oxygen is used for(A) L.D. steel making(B) Cutting and welding of metals(C) Medicinal purposes(D) Chemical oxidation processes

Description : Low purity oxygen is used for (A) L.D. steel making (B) Cutting and welding of metals (C) Medicinal purposes (D) Chemical oxidation processes

Last Answer : (D) Chemical oxidation processes

Respiration that does NOT require oxygen is called: a) photosynthesis b) oxidation c) anaerobic respiration d) aerobic respiration

Description : Respiration that does NOT require oxygen is called: a) photosynthesis b) oxidation c) anaerobic respiration d) aerobic respiration

Last Answer : ANSWER: C -- ANAEROBIC RESPIRATION

BOD stands for : (1) Biological oxidation demand (2) Biological oxygen demand (3) Biochemical oxygen demand (4) Biotic oxidation demand

Description : BOD stands for : (1) Biological oxidation demand (2) Biological oxygen demand (3) Biochemical oxygen demand (4) Biotic oxidation demand

Last Answer : Biochemical oxygen demand

Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygen d. Chemical reaction with CO2 (1) a and b (2) b and c (3) c and d (4) a and c

Description : Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygen d. Chemical reaction with CO2 (1) a and b (2) b and c (3) c and d (4) a and c

Last Answer : a and c

The BOD values of water indicate the (1) amount of organic debris (2) amount of oxygen used for biochemical oxidation (3) amount of oxygen used for biochemical reduction (4) amount of ozone used for biochemical oxidation

Description : The BOD values of water indicate the (1) amount of organic debris (2) amount of oxygen used for biochemical oxidation (3) amount of oxygen used for biochemical reduction (4) amount of ozone used for biochemical oxidation

Last Answer : amount of oxygen used for biochemical oxidation

If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually resistant species, penicillin is not indicated c. Immediate operative intervention and aggressive resection of all involved tissues is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous

Description : If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually ... is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous

Last Answer : Answer: a, c Identification of a necrotizing, soft tissue infection mandates immediate operative intervention with aggressive resection of all involved tissues and empiric ... remains without controlled trials demonstrating any additional benefits derived from hyperbaric oxygen therapy

In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of (A) Use of non-preheated combustion air (B) Use of pulverised solid fuels (C) Imperfect mixing of fuel & air and infiltration of air (D) Use of excessive positive draft in the furnace

Description : In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of (A) Use of non-preheated combustion air (B) Use of pulverised solid ... of fuel & air and infiltration of air (D) Use of excessive positive draft in the furnace

Last Answer : (C) Imperfect mixing of fuel & air and infiltration of air

When approaching a wet runway, with the risk of hydroplaning, what technique should the pilot adapt? a. Positive touchdown, full reverse and brakes as soon as possible b. Smoothest possible touchdown, full reverse and only brakes below VP c. Positive touchdown, full reverse and only brakes below VP d. Normal landing, full reverse brakes at VP

Description : When approaching a wet runway, with the risk of hydroplaning, what technique should the pilot adapt? a. Positive touchdown, full reverse and brakes as soon as possible b. Smoothest possible ... touchdown, full reverse and only brakes below VP d. Normal landing, full reverse brakes at VP

Last Answer : c. Positive touchdown, full reverse and only brakes below VP

When approaching a wet runway, with the risk of hydroplaning, what technique should the pilot adapt? a. Positive touchdown, full reverse and brakes as soon as possible b. Smoothest possible touchdown, full reverse and only brakes below VP c. Positive touchdown, full reverse and only brakes below VP d. Normal landing, full reverse brakes at VP

Description : When approaching a wet runway, with the risk of hydroplaning, what technique should the pilot adapt? a. Positive touchdown, full reverse and brakes as soon as possible b. Smoothest possible ... touchdown, full reverse and only brakes below VP d. Normal landing, full reverse brakes at VP

Last Answer : c. Positive touchdown, full reverse and only brakes below VP

A compound contains atoms A, B and C. The oxidation number A is `+2`, of B is `+5` and of C is `-2`. The possible formula of the compound is :

Description : A compound contains atoms A, B and C. The oxidation number A is `+2`, of B is `+5` and of C is `-2`. The possible formula of the compound is :

Last Answer : A compound contains atoms A, B and C. The oxidation number A is `+2`, of B is `+5` and of C is `-2`. The ... BC_(4))_(2)` D. `A_(3)(B_(4)C)_(2)`