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1. The nonmetal A is carbon which is major constituent of our food.2. Oxide B is carbon Monoxide which is toxic3. Oxide C is Carbon dioxide which causes global warming.

Charge on Mn in MnO4–

Charge on Oxygen is – 2

Mn + 4O= – 1

Mn +4(–2)= – 1

Mn= +7

So our reaction is

MN7+àMn2+

n = 7– 2= 5

Required charge will= 5 × 96487 Coulombs

= 482435 Coulombs

= 4.82 × 105Coulombs

When iron is mixed with copper, nickel, and chromium in addition to little content of carbon, phosphorous and manganese, stainless steel is formed. However the percentage alloying material defined the material grade.

option a.

solid fuels:solid fuels left some ash or residue after combustion.example:wood,peat, lignite coal, bituminous coal

liquid fuels:most of the liquid fuels in use are the hydrocarbons which exists in liquid phase at room temperature.example: gasoline, paraffins, diesel,fuel oil.

gaseous fuel:some of gaseous fuel exist naturally at room temperature and some are made by the treatment of coal.example:coal gas,coke oven gas, product gas.

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Thepotash alumdissolve thesamplein distilled water and remove the insoluble impurities by filtration. This solution is concentratedtothe crystallisation point and cooled. Colourless transparant crystals ofpotash alumseparate

Mass of electron is negligible, thus doubling it will not change anything.

Atomic Mass = Mass of protons + Mass of neutrons

Mass of neutron is halved.

In carbon 12,

number of protons = number of neutrons = number of electrons = 6

original atomic mass = 6 + 6 = 12

new atomic mass = 6 + 3 = 9

(12 - 9) / 12 = 3/12

= 1/4 = 0.25

So, atomic mass will be reduced by 25%.

The functional group is defined as an atom or group of atoms joined in a specific manner, which gives the chemical properties of the organic compound and are the centers for chemical reactivity. Compounds having a similar functional group have undergone similar reactions

Aldehydes are made up of carbon and oxygen double-bonded together and hydrogen bonded to the carbon.Aldehydes have formula R-CHO.A ketone is a carbon atom double bonded to an oxygen atom that appears as a bridge between two other parts of a molecule.Another name for this group is thecarbonyl functional group.

Can the answer be in short

Ans :- The IUPAC defines calcination as "heating to high temperatures in air or oxygen". However, calcination is also used to mean a thermal treatment process in the absence or limited supply of air or oxygen applied to ores and other solid materials to bring about a thermal decomposition.

Example:ZnCO3→ ZnO + CO2

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Fossil fuels are sources ofenergythat formed from the accumulated remains of living organisms that were buried millions of years ago. Pressure, heat and time allow the organic matter to transform into one of the three major types of fossil fuels, which arecoal,oilandnatural gas

When a liquid of any kind comes in contact with the baking soda it releases the carbon dioxide which makes the bread rise since the chemical reaction creates air bubbles. Carbon dioxide gas is produced when baking powder NaHCO3 is heated in the oven, this gas evolution makes the cake fluffy.

remains of Dead animal and plants

The book written by susrut Sushruta Samhita

Ethanol -> CH₃CH₂OH

When Ethanolis heated with excess of conc. H₂SO₄, at 443 K , Ethene is formed . conc. H₂SO₄CH₃CH₂OH ----------------------> CH₂ = CH₂ + H₂O

H₂SO₄ acts as a dehydrating agent , that removes water molecule from ethanol

Nylon 6,6: Two different molecules (adipic acid and hexamethylene diamine) arecombinedto create repeat units of 6 carbon atoms, thus the name nylon 6,6. Nylon 6: Only one type of molecule is used in the formation of nylon 6, which also has 6 carbon atoms.

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(1)

2)Critical temperature: The temperature at or above which we cannot liquefy gas/vapor into liquid no matter how much pressure you apply.

1. graham's law if diffusion

In thermodynamics, a critical point is the end point of a phase equilibrium curve. The most prominent example is the liquid-vapor critical point, the end point of the pressure-temperature curve that designates conditions under which a liquid and its vapor can coexist.

Critical temperature is the temperature above which a gas can not be liquefied by application of pressure.Critical pressure is the pressure required to liquify the gas at critical temperature.

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The transport of oxygen in blood is undertaken by hemoglobin, the largest component of red blood cells. This protein collects oxygen in respiratory organs, mainly in the lungs, and releases it in tissues in order to generate the energy necessary for cell survival. Hemoglobin is one of the most refined proteins because its evolution and small mutations in its structure can produce anaemia and other severe pathologies.

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800 is the correct answer of the given question

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400 + 400 = 800 is the correct answer for this question

400 + 400 = 800800 is the correct answer.

400+400_______ 800_______

800 is the correct answer

400+400=800

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400+400=800 is the answer

800 is the answer.400×2/400+400=800

800 is the correct answer

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400. + 400 = 800.

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800 is the correct answer

800 is the correct answer

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400+400=800 is the correct answer

Hofmann rule is an empirical rule used to predict regioselectivity of 1,2-elimination reactions occurring via E1cB mechanism. It states that, in a regioselective E1cB reaction, the major product is the less stable alkene, i.e., the alkene with the less highly substituted double bond.

The main function of xylem is totransportwater and Minerals from the soil with the help of epiblema cell and root hair which is present in root of the plant.

The function of the phloem tissue is to transport food nutrients such as sucrose and amino acids from the leaves and to all other cells of the plant by the process known as translocation.

Xylem and Phloem are two different types of tissues which are mainly involved in transporting the minerals, water, and food from the roots to the leaves. Every living thing on earth evolves the biological process, from the nucleus to tissues and glands processing every single element.

Xylem and Phloem are two different types of vascular tissues which are mainly involved in the transportation process. Thesetissuesare from vascular bundles and work together as a unit. The movement of xylem is unidirectional, while, the movement of phloem is bidirectional

Totowas in the captivity of a tonga owner. Thegrandfather gets sympathetic with the monkey and thinks that his privatezoo wouldbe a better place forToto. So he purchasedTotofrom the tongawallah for five rupees.

tq

tq

(2) 28

Thx

First group elements include Lithium, Sodium, Potassium, Rubidium, Caesium, Francium.

Two properties of first group elements are:

(i) Atomic radius increases down the group. Reason: Number of shells increases down the group.

(ii) They are good conductors of heat and electricity.

Bharatanatyam, from Tamil Nadu.Kathak, from Uttar Pradesh and western India.Kathakali, from Kerala.Kuchipudi, from Andhra Pradesh

Bharatanatyam.Kathak.Kathakali.Kuchipudi.Odissi.Sattriya.Manipuri.Mohiniyattam.

1. Kathakali2. Bharatnatyam3. Kathak4. Kuchipudi

Salt-affected soils are grouped into saline and alkali/sodic soils on the considerations of soil management and crop responses. Out of the 3.4 M ha of alkali lands in Indo-Gangetic Plains, about 1.0 M ha has been reclaimed by the hydro-chemical technology. Application of amendments like gypsum, equivalent to 50% gypsum requirement, to the surface 15-cm soil only was enough to start cropping with rice.

The answer is option B

The correct answer is option (1) because enthalpy is an extensive property.

ThePauli exclusion principleis thequantum mechanicalprinciple which states that two or moreidenticalfermions(particles with half-integerspin) cannot occupy the samequantum statewithin aquantum systemsimultaneously. In the case ofelectronsin atoms, it can be stated as follows: it is impossible for two electrons of a poly-electron atom to have the same values of the fourquantum numbers:n, theprincipal quantum number,ℓ, theangular momentum quantum number,mℓ, themagnetic quantum number, andms, thespin quantum number. For example, if two electrons reside in the sameorbital, and if theirn,ℓ, andmℓvalues are the same, then theirmsmust be different, and thus the electrons must have opposite half-integer spin projections of 1/2 and −1/2. This principle was formulated by Austrian physicistWolfgang Pauliin 1925 for electrons, and later extended to all fermions with hisspin–statistics theoremof 1940.

An extensive property is a property that depends on the amount of matter in a sample. The mass of an object is a measure of the amount of matter that an object contains. A small sample of a certain type of matter will have a small mass, while a larger sample will have a greater mass. Another extensive property is volume. The volume of an object is a measure of the space that is occupied by that object.

An intensive property is a property of matter that depends only on the type of matter in a sample and not on the amount. Other intensive properties include color, temperature, density, and solubility.

Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces and acts in the upward direction at the center of mass of the displaced fluid.

The electronic configuration 1s3is prohibited by thePauliexclusion principle, which is stated simply as:

No individual orbital may be occupied by more than two electrons, and if two electrons do occupy a single orbital, then their spins must be paired.

option-b

Fish float based on Archimedes' principle. Most fish have an organ known as the swim bladder. When they want to rise, fish release gas into the swim bladder and increase their volume. As a result, they displace more water. The force of buoyancy acting on them increases. To come down, a fish empties the bladder to the required extent, reducing the volume and the force of buoyancy acting on it.

i) NH3 gets oxidized to NO (Removal of hydrogen,additionof oxygen) O2 gets reduced to H2O ( Addition of hydrogen).Thus, NH3 acts as reducing agent.

ii) Fe2O3 gets reduced to Fe (Removal of oxygen) CO gets oxidized to CO2 (Addition of oxygen). Hence, CO acts as reducing agent.