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REACTION: H₂ + Cl₂ ----> 2HCl

Volume ratio = 1 : 1 : 2
(1 volume of H₂, 1 volume of Cl₂ and 2 VOLUMES of HCl)



Given that, 4cm³ of Hydrogen is unreacted.

So, volume of reacted mixture = (36 - 4) cm³ = 32 cm³


Now, 1 volume of H₂ = 



Again, 1 volume of Cl₂ =




ACTUAL volume of Hydrogen given at first = (16 + 4) cm³ = 20 cm³


Hence, original COMPOSITION of the mixture was, 20cm³ of Hydrogen and 16 cm³ of Chlorine.




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1

8

12

16

answer: c

solution: N/a

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As we know that WATER has a boiling point of 100°C.It will be in VAPOUR STATE at a temp. of 102°C.

As -2 DEGREE is below 0 degree tem. thus the water will freeze and BECOME ice

Søren PEDER Lauritz Sørensenat

An iron nail RUSTS when it comes in contact with water and moisture but when it is kept with soap MAYBE some REACTIONS take place between the basic elements found in the soap and the iron(acid). So when both acid and BASE react they are neutral. therefore no reaction of rusting TAKES place.

Nitration MUCH of the WORK on nitration of azoles has concerned the phenyl DE- rivatives . These SUBSTITUTE in the phenyl ring at positions that depend on the REACTION conditions

Formula of a compounds represent that. what is the valency of both elements.

For example - water is COMPOUND anf, it's formula is H20

here, 1 is the valency of hydrogen.

and, 2 is the valency of oxygen.

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This EXPERIMENT SUPPORT the LAW of CONSERVATION of MASS

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Hi friend it's because it's USING is so easy & economic so many people use this course of water so it's using GROUND water is INCREASING CONTINUALLY, thanks u
brailrst pls

Hello DEAR...here is your answer

BASICITY of that COMPOUND is 1

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The inter particle FORCES are the forces between the particle of a body.
In three states it is RELATED:-
In solid- the inter particle force is more so it is rigid and has definite SHAPE.
in liquid- the force is less as compared to solid and it is not rigid and does not have definite shape.
in GAS- the force is least as compared to solids and liquid and it is not rigid and does not have definite shape ,its molecules are free to move

Displacement reaction: 1:Zn +2HCL =zncl +H2 2:Fe +cuSo4=feSO4 + cu 3:zn + 2AgNO3=zn(NO3)2+2Ag 4:pb + CUCL2 = pbCl2 +cu 5:pb (NO3) +2 KI =pbI2 + 2KNO3 6:NaSO4 + BACL2= BaSO4+2NaCL

The chemical FORMULA of SOAP is C17H35COONa
soaps are BASICALLY the POTASSIUM or SODIUM salt

No. of MOLECULES in 5 moles O2 molecules = 5 moles = 3.011 x 10^24 molecules

1 mole = 6.022 x 10^23
5 moles = 30.11 x 10^23 = 3.011 x 10^24


1 O2 molecule = 2 O ATOMS

3.011 x 10^24 O2 molecules

= 2 x 3.011 x 10^24 atoms
= 6.022 x 10^24

We have the formula for finding no. of PARTICLES(ATOMS, molecules,IONS)
No of moles*Avogadro's number= no of particles (in this CASE molecules (
=2*6.022*10^23
=12.044*10^23
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On ADDITION of water to naoh,it BREAKS down unto na+ and oh- ions...the reaction is highly exothermic....On the other hand CAO reacts with water to form caoh2.This reaction is ALSO exothermic and the water in the mixture of reactants evaporate.
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The HEAT is used to break the bonds between the ice molecules as they turn into a liquid PHASE. Since the average kinetic ENERGY of the molecules does not change at the moment of melting, the temperature of the molecules does not change. HENCE the temperature remains constant during melting or BOILING point.

Observation 1.when dilute sulphuric acid is poured on zinc granules then zinc sulphate is formed along with the evolution of gas zinc is more REACTIVE than hydrogen so displaced it from sulphuric acid.

observation 2.The gas evolved is hydrogen.we can test its presence by BRINGING a BURNING candle near the mouth of the test tube and hearing for a popping SOUND only hydrogen gas burns with a POP sound.

HEYA----

Given Vapour Density ( VD ) = 59.5

i.e. Molecular Weight = ( VD *2 ) = 119

Now, No of max Cl atoms that the compound can have is TWO because three exceeds the given molecular weight of the compound

i.e. Metallic Component is = 119 - 71 = 48

also the equivalent weight of the METAL is given as 24 and there are 2 CHLORINE atoms in the compound which implies that in this case

Mol.wt = 2 * Eq.wt = 24*2 = 48…….

So 48 is the atomic mass of the metal( which happens to be Cadmium )……

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When CO2 is PASSED through Slaked lime we will observe a MILKY solution. This is due to the insoluble suspension of calcium carbonate formed:
Ca(OH)2(aq) + CO2(G) → CACO3(s) + H2O(l).
The reaction INVOLVED is percipitation reaction

A desert cooler COOL BETTER on a hot DRY day because on a hot dry day temperature is HIGH and humidity is less which helps in better EVAPORATION Due to higher rate of evaporation it gives better cooling effect

A SCIENTIST NAMED HENRY MOSLEY

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The equivalent weight of oxidising or reducing agent is = molecular weight / NUMBER of electron PER MOLE transfer during the REACTION.
In above MENTIONED reaction there is transfer of 2 electrons per 2 moles of Na2S2O3 as follows :
2S2O32- → S4O62- + 2e-
So the equivalent weight of Na2S2O3 is same as molecular weight = 158.11 g mol-1

Due to STRONG INTERMOLECULAR force between the ATOM of almirah's MATERIAL

A paddy field is a flooded PARACEL of arable land used for growing semiaquatic rice.Paddy cultivation should not be confused with cultivation of deepwater rice , which is grown in flooded conditions with water more than 50cm(20in) deep for last MONTH. Fields can be built into steep HILL sides as terraces and adjacent to depressed or steeply SLOPED features such as rivers or marshes.
Hope this short explaination ANS will help you

Hello friend your answer!!
••Rancidity MEANS Oxidation of the food having fats and oils.
it EMITS a foul smell

♥It can be prevented in two ways.

♠storing the food CONTAINING fats and oils in a VACUUM containers.
♠ it can be prevented by adding antioxidants to food. like salt.
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Reaction in which the RATE does not DEPEND on the CONCENTRATION of the reactants. Reactions occuring in the SURFACE of metal catalysts like gold, platinum etc are zero order reactions.

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In all, lysosomes function as the DIGESTIVE system of the cell. ... Lysosomes are membrane-enclosed ORGANELLES that help eukaryotic cellsobtain nourishment from MACROMOLECULAR nutrients. The lysosomes CONTAIN many hydrolyticenzymes such as proteases, NUCLEASES, and lipases).

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Boiling point has fixed point for ex-water at 100°c WHEREAS evaporation TAKES at random.
evaporation always cause cooling
boiling not cause cooling.
boiling occurs in at the bottom in the FORM of bubbles whereas evaporation takes PLACE only on SURFACE.

Heya @User

here, ANSWER is option (c)

explanation :-

( n ) = ULTIMATE

(n- 1 ) = penultimate

( n-2) = Anti -penutimate

The group of elements in which the differentiating electrons enter the anti-penultimate shell of atoms are called F-block elements

=max capacity of F orbitals is 14,
so given there 1-14


*sub-shells being filled up in each period

1st period = 1s
2nd period = 2s 2p
3rd period = 3s 3p
4th period = 4s 3D 4p
5th period =5s 4d 5p
6th period =6s 4f 5d 6p
7th period = 7s 5f 6d 7p

so, the option c satisfies this order

means, when n=6 .ie, 6th period-
so value of f= (n-2) =4f
value of d = (n-1) = 5d

f-block elements always end with full filled s-orbital

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Its MOLECULAR MASS CANOT be REDUCED

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Cotton cloths are comfortable because it absorbs sweat released by our body and gives us COOLING...... THANK you plz mark this answer as brainliest answer