22. Bond order of 1.5 is shown by:
(1) O2
(2) O2

(3) O2

(4) 2 O2

1 Answer

Answer :

O2

Related questions

Description : 33. The pair of species with the same bond order is (1) N2 , O2 (2) 2 O , B 2 2  (3) O , NO 2   (4) NO,

Last Answer : (2) 2 O , B 2 2 

Description : 13. Which one of the following pairs is isostructural (i.e. having the same shape and hybridization)? (1) 4 4 [BF and NH ]   (2) 3 3 [BCl and BaCl ] (3) 3 3 [NH and NO ]  (4) [NF3 and BF3 ] Sol: [1] In both the compounds, central atom i

Last Answer : (1) 4 4 [BF and NH ]  

Description : Which of the following has the highest bond order? (1) N2 (2) O2 (3) Cl2 (4) H2

Last Answer : (1) N2 Explanation: A high bond order indicates more attraction between electrons. A higher bond order also means that the atoms are held together more tightly.

Description : Predict the products in the given reaction CHO Cl  50% KOH (1) OH OH  OH O - O (2) OH Cl  Cl O O - (3) OH OH  OH OH (4) OH Cl  Cl O - O Sol: [4] CHO Cl  50% KOH COOK Cl  Cl OH

Last Answer : CHO Cl  50% KOH COOK Cl  Cl OH

Description : In which of the following reactions, standard reaction entropy change (S°) is positive and standard Gibb's energy change (G°) decreases sharply with increasing temperature? (1) 2 2 1 1 1 C graphite O (g) CO (g) 2 2 2   (2) 2 1 C ... CO(g) O (g) CO (g) 2   (4) 2 1 Mg(s) O (g) MgO(s) 2  

Last Answer : C graphite O (g) CO(g)

Description : 45.4 L of nitrogen reacted with 22.7 L of oxygen and 45.4 L of nitrogen oxide was formed. The reaction is given below: 2N2(g) + O2(g) →2N2O(g) Which law is being obeyed in this experiment? Write the statement of this law.

Last Answer : Ans. Gay lussac’s law of gaseous volume is being obeyed. According to gay lussac’s law of gaseous volumes, gases combine or are produced in a chemical reaction in a simple ration by volume, provided that all gases are the same temperature and pressure.

Description : Which of the following molecules contains a polar covalent bond A.H2 B.N2 C.CO D.O2?

Last Answer : C. CO

Description : How much distance (in cm) will the bicycle shown below travel, if the pedal makes 1.5 revolutions? (Assume π = 22/7). 

Last Answer : 330

Description : The ionic radii of N3-; O2-; F- and Nat follows the order?

Last Answer : N3- > O2- > F- > Na+

Description : . If the power distribution system shown in figure 2-22 uses selective tripping, what is the time delay rating for each of the circuit breakers shown?

Last Answer : CB1-long time delay; CB2, CB3-short time delay; CB4 through

Description : Covalent bond is directional therefore which covalent property is shown ?

Last Answer : Space Isomerism

Description : (a) What are fuel cells? Explain the electrode reactions involved in the working of H2 – O2 fuel cell. (b) Represent the galvanic cell in which the reaction Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s) takes place. -Chemistry

Last Answer : (a) Fuel cells : These cells are the devices which convert the energy produced during combustion of fuels like H2, CH4, etc. directly into electrical energy. The electrode reaction for H2 – O2 fuel cell : (b) The galvanic cell may be represented as Zn (s) | Zn2+ (1M) || Cu2+ (1M) | Cu (s)

Description : Photo chemical smog is a result-ant of the reaction among – (1) High concentration of NO2, O3, and CO in the evening (2) CO, CO2 and NO2 at low temperature (3) CO, O2 and peroxy acetyl nitrate in the presence of Sunlight (4) NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight

Last Answer : (4) NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight Explanation: Photochemical smog is a unique type of air pollution which is caused by reactions between sunlight and pollutants like hydrocarbons and nitrogen dioxide (NO and NO2).

Description : Which gas is used for converting vegetable oils into saturated fats? (1) H2 (2) O2 (3) Cl2 (4) SO2

Last Answer : (1) H2 Explanation: Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. ... oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).

Description : Which of the following is not a greenhouse gas? (1) Water vapour (2) O2 (3) O3 (4) CO2

Last Answer : (2) O2 Explanation: Greenhouse gases are those that can absorb and emit infrared radiation, but not radiation in or near the visible spectrum. The most abundant greenhouse gases in Earth's atmosphere are: Water ... , Carbon dioxide (CO2), Methane (CH4), Nitrous oxide (N2O), Ozone (O3) and CFCs.

Description : The catalyst used in hydrogenation of oils is - (1) Fe (2) V2O5 (3) Ni (4) O2

Last Answer : (3) Ni Explanation: The catalyst used in hydrogenation of oils is nickel. It is used to speed up the reaction. Vegetable oils convert into vanaspati after hydrogenation.

Description : Supersonic jet causes pollution by thinning of - (1) O3 layer (2) O2 layer (3) SO2 layer (4) CO2 layer

Last Answer : (1) O3 layer Explanation: Three forms (or allotropes) of oxygen are involved in the ozone-oxygen cycle: oxygen atoms (O or atomic oxygen), oxygen has (O2 or diatomic oxygen), and ... oxygen radicals. The atomic oxygen radicals then combine with separate O2 molecules to create two O3 molecules.

Description : Which of the following gases makes bread or cake rise making them soft and spongy? (1) CO (2) H2 (3) CO2 (4) O2

Last Answer : (3) CO2 Explanation: Breads rise due to the process of fermentation, a chemical process by which molecules such as glucose are broken down an aerobically.

Description : Anthracene undergoes oxidation with O2/V2O5 at 500°C to give (a) Benzoic acid (b) Anthraquinone (c) Phthalic acid (d) Benzophenone

Last Answer : Anthraquinone

Description : LPG (Household cooking gas) is mainly a mixture of (a) Methane + Ethane (b) Acetylene + O2 (c) Butane + Isobutane (d) Acetylene + H2

Last Answer : Butane + Isobutane

Description : 76. People who have migrated from the planes to an area adjoining Rohtang Pass about six months back (1) Have the usual RBC count but their haemoglobin has very high binding affinuty of O2 (2 ... to play games like football (4) Suffer from altitude sickness with symptoms like nausea, fatigue, etc

Last Answer : Have more RBCs and their haemoglobin has a lower binding affinity of O2

Description : How many electrons are there in the valence shell of the O2– ion? A 2 B 8 C 10 D 16 E 18

Last Answer : B 8 

Description : The conjugate acid of water is: w) OHx) H2 y) O2 z) H3O+

Last Answer : ANSWER: Z -- H3O+

Description : Azo (pron: A-zo) Compounds characteristically are compounds containing the group: w) C2 x) N2 y) O2 z) Cl2

Last Answer : ANSWER: X -- N2 (N = N)

Description : Which of the following is not a greenhouse gas ? (1) Water vapour (2) O2 (3) O3 (4) CO2

Last Answer : O2

Description : Which gas is used for converting vegetable oils into saturated fats ? (1) H2 (2) O2 (3) Cl2 (4) SO2

Last Answer : H2

Description : Supersonic jet causes pollution by thinning of (1) O3 layer (2) O2 layer (3) SO2 layer (4) CO2 layer

Last Answer : O3 layer

Description : Which of the following gases will effuse out of football bladder most quickly ? (1) He (2) H2 (3) N2 (4) O2

Last Answer :  H2

Description : Arrange the following in the increasing order of C-C bond length- C2H6 , C2H4, C2H2

Last Answer : Ans. C2H2 < C2H4 < C2H6

Description : Define bond order and give the relationship between bond order and bond length

Last Answer : Ans Bond order (b.o.) is defined as one half the difference between the number of electrons present in the bonding and the antibonding orbitals i.e., Bond order (b.o.) = ½ (Nb–Na) Bond order is inversely proportional to bond length

Description : Which of the following is the correct order of bond lengths : (a) C–C < C=C < C≡C (b) C–C > C≡C > C=C (c) C≡C > C–C > C=C (d) C≡C < C–C > C=C

Last Answer : C–C < C=C < C≡C

Description : For stable molecule the Value of bond order must be.... a) Negative b) Positive c) 0 d) There is no relationship between stability and bond order

Last Answer : b) Positive

Description : The angle of projection when the range is equal to the distance through which the particle would have fallen in order to acquire a velocity equal to the velocity of projection will be a.30? b.45? c.15? d.90? e.22

Last Answer : c. 15?

Description : Put these in decimal order 22.2,-0.2,2.02 staring with the smallest?

Last Answer : -0.2

Description : What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth’s rotation? A. 26,426.4 miles B. 27,426.4 miles C. 23,426.4 miles D. 22,426.4 miles

Last Answer : D. 22,426.4 miles

Description : Find the orbital dipole moment in a field of dipoles of radius 20cm and angular velocity of 2m/s(in 10 -22 order) a) 64 b) 76 c) 54 d) 78

Last Answer : a) 64

Description : . For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is: (A) 2 (B) 4 (C) 11 (D) 22

Last Answer : (C) 11

Description : The fractions 7/11, 16/20, 21/22 when arranged in descending order is (1) 7/11,16/20,21/22 (2) 21/22,7/11,16/20 (3) 21/22,16/20,7/11 (4) 7/11,21/22,16/20

Last Answer : (3) 21/22,16/20,7/11

Description : After inviting tenders for supply of raw materials, two quotations are received as follows- Supplier P Rs. 2.20 per unit, Supplier Q Rs. 2.10 per unit plus Rs. 2,000 fixed charges irrespective of the units ordered. The ... (a) 22,000 units (b) 20,000 units (c) 21,000 units (d) None of the above.

Last Answer : (b) 20,000 units

Description : From the following information, calculate the extra cost of material by following EOQ: Annual consumption: = 45000 units Ordering cost per order: = Rs. 10  Carrying cost per unit per annum: = Rs. 10  Purchase price per unit = Rs. ... ) No saving (b) Rs. 2,00,000 (c) Rs. 2,22,010 (d) Rs. 2,990

Last Answer : (d) Rs. 2,990

Description : Thiopental (sodium thiopental, Thiopentone, STP) characterized by the following except A. Prepares as a pale yellow 10.5 (alkaline) B. After iv bolus, rapidly ... C) Effects include decrease cerebral blood flow and O2 requirements D) Has good analgesic ...

Last Answer : Ans: D

Description : People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude to 5400 metres have around 8 million. This is because at high altitude ... required amount of O2 to survive (d) there is more UV radiation which enhances RBC production.

Last Answer : (c) atmospheric O2 level is less and hence more RBCs are needed to absorb the required amount of O2 to survive

Description : What is true about RBCs in humans? (a) They carry about 20-25 percent of CO2. (b) They transport 99.5 percent of O2. (c) They transport about 80 percent oxygen only and the rest 20 percent of it is transported in dissolved state in blood plasma. (d) They do not carry CO2 at all.

Last Answer : (a) They carry about 20-25 percent of CO2.

Description :  Answer the following S. No Statement Chose the correct  answer OR Fill-in-the-blanks 1 Fyrite measures CO2, O2 and SO2 True/False 2 Ultrasonic Flow Meter uses the principle of____& ____ Fill in the ... of RPM  meter is used and for a visible shaft-end _______ type of  RPM meter is used.

Last Answer : Sr  No Statement Chose the correct  answer OR Fill-in-the-blanks Solution 1 Fyrite measures CO2, O2 and  SO2 True/False False 2 Ultrasonic Flow Meter uses the  principle of____& ____ ... ]  10 In a gasification system the  reduction zone is above the  combustion zone True/False False

Description : What is the sum of bond order of Fe-C bond and C-O bond in `Fe(CO)_(5)` ?

Last Answer : What is the sum of bond order of Fe-C bond and C-O bond in `Fe(CO)_(5)` ?

Description : Can humans survive breathing an 80/20 mix of CO2 and O2?

Last Answer : Humans breath Air which is a mixture of about 78% Nitrogen, 21% Oxygen and trace other gases including 0.03% Carbon Dioxide. Much higher levels of Oxygen would make it easy for things to catch ... can tolerate a higher level because they use the Carbon Dioxide. and water to make sugars and cells.

Description : Anyone ever replaced an o2 sensor on a nissan versa?

Last Answer : No, but I cannot see how it would be any more difficult than on most other cars. What seems to be your boggle?

Description : Is o2 wireless a good service? What's your experience with o2?

Last Answer : The bad things that reviews say about it include expensive rates, followed by bad audio quality and slightly bad coverage. The site doesn’t say anything about customer support, though.

Description : UK: Carphone Warehouse vs O2 Store for iPhone purchase?

Last Answer : answer:It's much of a muchness to be honest. Doesn't really matter. CPW will most likely ask you for an email address, and they will post you documentation on deals that they have related to your purchase ... to look into. I know quite a few. I'll update here before you get your phone home tomorrow.