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1) the radiation can ionise the gas

option I is the correct answer

1 st option is right answer

X-rays is electrically neutral, not deflected in electric or magnetic fields.so,answer is option C

Ethanol has sweet odour while ethanoic acid has pungent odour.

Ethanol does not react with sodium bicarbonate (NaHCO₃) but ethanoic acid reacts with sodium bicarbonate (NaHCO₃) releasing CO2 gas.

Ethanol does not change the colour of blue litmus paper while ethanoic acid change the colour of blue litmus to red.

We can distinguish between ethanol and ethanoic acid by reacting them with a metallic carbonate like Na2CO3or a bicarbonate like NaHCO3.......

Ethanoic acid reacts to give to give CO2and no reaction takes place in case of ethanol.

2CH3COOH + Na2CO3----------> CH3COONa + H2O + CO2

CH3CH2OH +Na2CO3-------------> NO REACTION...

SAME CASE WITH NaHCO3.

thank you

1)In the sugar-manufacturing industry, one can get ethyl alcohol or ethanol as a byproduct. Each are produced through the fermentation. Synthetic ethanol can also be produced from coal or gases, so the coal industry may be a valid answer as well. Even farmers who grow corn can turn that corn into starch, allowing the fermentation of the of starch for ethanol, so even the corn industry could be a valid answer

2)Catenation is a property of a elment to form linkage with same elements.Catenation mostly occurs in Carbon,which forms covalent bond with other carbon atoms.

Catenation can also occur in silicon,boron and boron.

3)The renewableethanolcontent, which is a by product of the sugar industry, is expected to result in a net reduction in the emission of carbon dioxide, carbon monoxide (CO) and hydrocarbons (HC).Ethanolitself burns cleaner and burns more completely thanpetrolit is blended into

Ans :- It is pretty simple. That when ethanol is subjected to dehydration (i.e. removal of water molecule from ethanol). For this we require some dehydrating agents such as follow

1. Concentrated sulphuric acid

CH3 -CH2-OH →C2H4 + H2O

Ethanol is a grain alcohol that can be blended with gasoline and used in motor vehicles. Many gasoline stations provide a blended fuel, which typically is 10 percent ethanol and 90 percent gasoline. Vehicles do not need any modifications to use this blend of fuel.

Ethanol is used inmedicalwipes and most commonantibacterialhand sanitizer gels as anantiseptic. Ethanol kills organisms by denaturing their proteins and dissolving their lipids and is effective against most bacteria and fungi, and many viruses. However, ethanol is ineffective against bacterial spores.

2 : 0.365Methanol 0.635Ethanol.

Steps:1) Find Total vapour pressure of solution by adding partial vapour pressures. P(T) = 2.619+4.556= 7.175

2)We know that,

X(Methanol) = Partial Pressure (Methanol) / P(T)= 2.619/7.175 = 0.365

3) Similarly, X(Ethanol) = 4.556/7.175 = 0.634

Therefore, composition of Methanol and Ethanol (Mole fraction) is 0.365 and 0.634 respectively.

Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information. Deoxyribonucleic acid or DNA is a molecule that contains the instructions an organism needs to develop, live and reproduce. These instructions are found inside every cell, and are passed down from parents to their children.

DNA structure:DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code. Human DNA has around 3 billion bases, and more than 99 percent of those bases are the same in all people, according to the U.S. National Library of Medicine (NLM).

Given mass = 60gm = 0.06kg and v = 10m/s so momentum is mv = 0.6kgm/s

we know that , wavelength. = h/mv

so, wavelength is 6.64 × 10^(-34)/(0.6) ≈ 10^{-33}

option 4.

A polymer is a large molecule, or macromolecule, composed of many repeated subunits. The two types of polymers are synthetic and natural polymers.

There are two basic types ofreceptors:

1. Ionotropic

2. Metabotropic

Elementsare arranged from left to right and top to bottom inorderof increasing atomic number.

The stat of a system of reacting substances in which the concentration does not change is called chemical equilibrium.

The changes in the concentration, temperature, or pressure affect the equilibrium.

In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.

At a giventemperature, the measurable properties likepressure, concentration,densityor colorremain constant in chemical equilibrium.

Chemical equilibrium can be attained from either side (forward and backward reactions).

Please hit a like if you find it useful

here the oxidation state of Fe in 3Fe = 0 and in Fe3O4 is 8/3 .. so lost in electrons is 8/3 so for 3 moles of Fe , the lost is (8/3)*3 = 8.

option D.

This means that 1 volume of H2O2 will give off 28 volumes of O2 at NTP,20C and at 1atm

So, 1Litre of solution can produce 28 litre of oxygen under these conditions

let us assume that oxygen is a perfect gas,then from

PV = nRT ,where P = 1atm and V = 28L

so that we can calculate the n,ie number of moles of O2

n = PV/RT

n = 1X28/0.0821 X 298.15

n = 1.144 moles of O2

hydrogen peroxide decomposes as 2H2O2 ------------>2H2O + O2

Since twice the number of moles are required to produce 1 mole of oxygen so to generate 1.144 moles of O2 in 1L of solution,there must be 2.28 moles of H2O2 present in 1Litre

So molarity of H2O2 is 2.28

now to calculate molality

molality = molarity X density

= 2.28 X 26.5

= 60.42g/L

Freezing mixtures are used mainly in the laboratory to generate and maintain low temperatures. Industrial requirements for low temperatures are fulfilled by a freezing mixture that consists of crushed ice and reagent grade table salt, or NaCl.

Freezing mixture:

It is a mixture of two or more substances (e.g. ice water and salt, or dry ice and alcohol) which can be used to produce temperatures below the freezing point of water

Procedure to separate water, groundnut oil & common salt -1) Take the mixture in a beaker and allow it to stand for 1 hour.2) As water(+salt) is heavier than oil it remains down and groundnut oil can be poured out.3) Remaining salt solution is then mildly heated so that water is evaporated leaving behind the common salt.

a) The law of definite proportion, sometimes called Proust's law or the law of definite composition, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio and does not depend on its source and method of preparation

b) The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity cannot be added nor removed. Hence, the quantity of mass is conserved over time.

ΔSf=? ΔHf=6.0×103J,T=273K ΔSf=6000/273=21.97J/Kmol

As hens lay eggsHence we get eggs from hens.

Dental alloysare diverse incomposition, ranging from nearly pure gold and traditional gold-basedalloystoalloysbased on silver, palladium, nickel, cobalt, iron, titanium, tin, and other metals (Table 1). ... Common types ofalloysindentistryand their major component elements.

One of the assumptions of the ideal gas law is that the molecules do not have any attraction between them. Since these are all non-polar molecules, they will have dispersion forces, that get stronger the larger the molecule is (the more electrons it has). Since Br2 has the most electrons, it will have the strongest dispersion forces, and so deviate most from ideal behavior.

Kevlarhas many applications, ranging from bicycle tires and racing sails to bulletproof vests, because of its high tensile strength-to-weight ratio; by this measure it is 5 times stronger than steel.

It is alsousedto make modern marching drumheads that withstand high impact.

Kevlar has many applications, ranging from bicycle tires and racing sails to bulletproof vests, because of its high tensile strength-to-weight ratio; by this measure it is 5 times stronger than steel.

It is also used to make modern marching drumheads that withstand high impact.

It isusedas an oxidizer, bleaching agent and antiseptic. Concentratedhydrogen peroxide, or "high-testperoxide", is a reactive oxygen species and has beenusedas a propellant in rocketry.

b) on balancing both mass and charges 238U92 → 234Th90 +4He2

also 4He2 is alpha particle.

Ozone layer depletion, is simply the wearing out (reduction) of the amount ofozonein the stratosphere. Unlike pollution, which has many types and causes,Ozone depletionhas been pinned down to one major human activity.

Nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond in relation to a reaction. All molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophiles. Because nucleophiles donate electrons, they are by definition Lewis bases.

Orbitalsin order ofincreasing energy: 1s, 2s, 2p, 3s, 3p, 3d, 4s, 4p, 4d, 4f, 5s, 5pHence this is correct.

i dont know the answee of that question

(1) phosphorus

(2) phosphorus

Hcl has lower ph as it is acidic in nature

And naoh has larger ph as it is basic in nature

1. Formation of rust on the surface of Metal2.Burning of fuel3.Burning of carbon4.Burning of Hydrocarbon5.Digestion of food

Ans :- Epidermis - Cellsforming the outer surface of the leaves and of the young plant body.

Vascular tissue - The primary components of vascular tissue are thexylemandphloem.

Rustis the common name for iron oxide, which as the name implies, is made up of the elements iron and oxygen. Thecompoundis Fe2O3. Iron combines quickly with oxygen, and the process of turning iron to iron oxide is an example of corrosion. You can see things like steelrustbecause steel contains iron.

rust is a mixture.

yes it's a mixture because it is formed by the mixture of iron and oxygen

Thnx

Cadmium