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alkanes : Ethane, Methanealkenes : Ethene, Propenealkynes : Ethyne, Propyne

Alkanes - ethane , methane

alkenes - ethene, propene

alkynes - ethyne, propyne

We knowCO2absorbs and re-emits longwave radiation (Tyndall). The theory ofgreenhouse gases predicts that if we increase the proportion ofgreenhouse gases, more warming will occur

The temperature of the Earth depends on the balance between incoming energy from the Sun and the energy that bounces back into the space Carbon dioxide absorbs hear that would otherwise be lost to space.

Some of this energy is reflected back to earth causing additional heating of the planet

Ethane is an unsaturated hydrocarbon

Hydrocarbons, or molecules which contain hydrogen atoms and carbon atoms that are bonded to each other and may or may not contain other atoms, are classified into two distinct categories: saturated and unsaturated. These hydrocarbons, which make up organic compounds, have distinct characteristics based on this further classification.Unlike saturated hydrocarbons in which all hydrogen atoms and carbon atoms are bonded together with single bonds, unsaturated hydrocarbons have double or even triple bonds between the carbon atoms. This makes unsaturated hydrocarbons even more reactive than saturated hydrocarbons, as well as have fewer hydrogen atoms bonded to the carbon atoms than saturated hydrocarbons have.

Butane- C4H10

Benzyne- C6H4

the right answer is (a) = 1-acetyloxy-2-butane hope this will help you like my answer and MARK IT AS BEST ANSWER

Butane- C4H10

Ans :- Safety precautions indoors

Avoidwaterduring a thunderstorm. Lightning can travel through plumbing.

Avoid electronic equipment of all types. Lightning can travel through electrical systems and radio and television reception systems.

Avoid corded phones.

Avoid concrete floors and walls.

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He was one of the pioneers in developing the first periodic table of chemical elements.

c) is correct option

B) is the correct answer

B) is correct answer

b. C2H5I>C2H5Br>C2H5Cl

The reactivityof thealkyl halideis decided by the ease with which thehalideleaves the substrate. As per the leaving ability, theorderis I>Br>Cl>F. So, theorderof Sn2reactionis I>Br>Cl>F.

but it is

the write answer is3-methylpentan-2-ol

3 methylpentane2-ol is the correct answer

IUPAC NAME: 4,5,5- trimethyl hept-2-yne

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It is not followed by option 3.Here C is having concentration of 80%

how

Molecular weight of c is 12 and that of H is 1So C2H6 have weight 30USo % of carbon = 24/30 = 80 %.

We find that n-butane and iso-butane have the same molecular formula (C4H10) but they have different structures .

They are called as Isomers. In other words, the organic compounds having the same molecular formula but different arrangement of carbon atoms in them are called as Isomers

C2H4 - CnH2n

C3H6 - CnH2n

C4H8 - CnH2n

general formula for the

series..

constant are are taken out side when we differentiate any function

Frequency = 25 Hz

Time period = T

we know that ,

frequency = 1/ T

25 = 1/T

25T = 1

T = 1/25 = 0.04 sec

SO2 was is +4 oxidation state... and then it converts to S having 0 oxidation state..

so, S is the answer.

wavelength = speed of light/frequency = 300000000/1000 = 300000 m

b. Adelphoparasitism

Adelphoparasitism also known as sibling-parasitism, occurs where thehostspecies is closely related to theparasite, often in thesame familyorgenus.

Energy of one photon is given by the expression E = hV

where, h = Planck's constant = 6.636 x 10^-34 J s-1V = Frequency of radiation = 5x 10^14 Hz= 5 x 10^14 s-1.

E= (6.636 x 10^-34 J s-1 x 5 x 10^14 s-1) = 33.18 x 10^-20J

One mole of photon = 6.023 x 10^23 photons

Therefore, Energy of one mole of photon = (6.023 x 10^23 x 33.18 x 10^-20 J) = 199.84 x 10^3J

Energy of one mole of photon = 199.84 kJ

Thank you very much

E=hv=6.63*10^-34*5*10^14=3.315*10^-19 eV

wrong answer

also have to multyply with avogadro number

option 1

The kilowatt hour (symbolized kW⋅h as per SI) is a composite unit of energy equivalent to one kilowatt (1 kW) of power sustained for one hour. Onewattis equal to 1 J/s. One kilowatt hour is 3.6 megajoules, which is the amount of energy converted if work is done at an average rate of one thousandwattsfor one hour.

An aqueous solution of an acid conducts electricitybecause of the presence of H+ ionsin solution. The hydrogen ion is a charged species and its movement causes the flow of current.

(a) Oxidation: The reactions in which gain of oxygen takes place are called oxidation. Examples –1. 2Cu + O2 —> 2CuO2. 2H2 + O2 —> 2H2O

(b) Reduction: The reactions in which loss of oxygen takes place are called reduction. Examples – 1. ZnO + C —> Zn + CO2. CuO + H2 —> Cu + H2O

Acomposition reaction(sometimes also called acombination reactionor asynthesis reaction) produces a single substance from multiple reactants. A single substance as a product is the key characteristic of the composition reaction. There may be a coefficient other than one for the substance, but if the reaction has only a single substance as a product, it can be called a composition reaction. In the reaction

2 H2(g) +O2(g) →2 H2O(ℓ)

Adecomposition reactionstarts from a single substance and produces more than one substance; that is, it decomposes. One substance as a reactant and more than one substance as the products is the key characteristic of a decomposition reaction. For example, in the decomposition of sodium hydrogen carbonate (also known as sodium bicarbonate),

2 NaHCO3(s) →Na2CO3(s) +CO2(g) +H2O(ℓ

3.Displacement Reaction:

Reactions in which the more reactive element displaces the less reactive element from its compound are called displacement reactions.

Zinc displaces copper in copper sulphate to form zinc sulphate.

Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)

balanced reaction = product and reactant same these reaction are called balanced reaction

Ans :- Schottky defectoccursinthose ionic crystals wheredifference insizebetween cation and anion is small.

In Schottky defect, both cation and anion leave the solid crystal.In Frenkel defect, only the smaller ion (cation) leaves its original lattice site; whereas, the anion remainsin original lattice sites.

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>A room has 9 chairs then>Total no of chairs in 6 rooms is=>9×6=54

The triple point for water is a temperature of 0.01 degrees Celsius (32.018 degrees Fahrenheit) and a pressure of 611.7 Pascals (.006 atmospheres). With this combination of temperature and pressure, water can exist as liquid water, ice or steam.

the answer is 5.6litre please check your solution

20 grams of dihydrogen is20÷2mol=10 mol

10 mol at stp=10×22.4liters =224liters

N2 , has half filled p orbital , which allows it to form 3 bonds within itself. so it is most stable

option 4 should be correct

because when electrons from double bond will shift to O , then the electron in compound will be in conjugation..

The Lanthanides have the general electron configuration of[Xe][Xe]4fn6s2with the exception of La,Gd and Lu which have one 5d electron.Hence +3 state is stable.