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No, the smell of CADAMON and clove is not a form of matter.

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There are THREE STEREOISOMERS for 1,2-dichlorocyclopentane.

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.
generally a COMPOUND of a element with higher oxidation state is more acidic than the compound of that element with lower oxidation state ..this is because in higher oxidation state the METAL oxides are highly covalent in NATURE

The centrifuge works USING the sedimentation principle, where the centrifugal ACCELERATION causes denser substances and PARTICLES to MOVE outward in the radial direction.

All the above is the answer

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Because PARTICLES of MATTER are CONTINUOUSLY moving in the state of motion.

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In GRAMS
40 grams
or
In ATOMIC MASS unit
40 AMU

Brownian movement hasbeen explainedto be DUE to the unbalanced bombardment of the particlesby the molecules of the dispersion medium (waterin most cases).This is deducted SINCE Brownianmotion has a stirring EFFECT which does notpermit the particles to SETTLE, therefore stabilizing the SOL!

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Hi friend,
# 0.07M

➡Reaction :-

Ba(OH)2 + 2HCl--------> BaCl2 + 2H2O

➡Explanation :-

M1V1/n1 = M2V2/n2

Where,
M1 and M2 are respectively, the moralities of Ba(OH)2 & HCl solution.

V1 and V2 are Volumes of Ba(OH)2 & HCl solutions.

n2 = stolchiometric COEFFICIENT of HCl = 2

Therefore,

➡Morality of BARIUM hydroxide solution is M1 = ( M2V2/n2) × ( n1/v1)
=( 0.1 × 35/2) × (1/25)
= 0.07M...i HOPE it helps you

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Copper OXIDE [CUO ] is the MATERIAL of green COATING

It is (C) 4 moles

2H2+O2------->2H2O

So there are 5 moles of H2 and 2 moles of O2
Hence, O2 is the limiting reagent here
now EVERY 1 mole of O2 gives 2 moles of H2O,
so every 2 moles of O2 gives 4 moles of H2O.

Dry ice and naptheleneare two examples of solid COVALENT compound
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0•8 BAR is a answerrrrer

This is DOUBLE displacement reaction because in this CHEMICAL reaction reaction PRECIPITATE(ppt) is FORMED by exchange Ion of reactant.

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Hey, here is your answer...

Given, to find the vapour density of SO3(sulphur TRIOXIDE).....

We know that,

Molecular mass = 2 × Vapour density....

Therefore,

Vapour density = 1/2 × Molecular mass...

Molecular mass of SO3 is.,

Atomic mass of S(sulphur) = 32...
Atomic mass of O3(oxygen) = 3(16) = 48...

Molecular mass of SO3 = 32+48... = 80...

Therefore, molecular mass of SO3 = 80...

We KNOWN that, V.D. = M.M/2...

V.D. of SO3 = 80/2...
V.D. of SO3 = 40...

Therefore Vapour density of SO3 is 40..

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In electrolysis ACIDIFIED WATER , dilute sulphuric acid is preferred to dilute NITRIC acid because, dilute sulphuric acid radily forms IONS whereas, nitric acid does not forms so.
Also, Dilute sulphuric acid is more volatile in NATURE whereas, nitric acid is less volatile.


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This is because the particles in liquids can MOVE around each other, which means that eventually they are EVENLY MIXED. ... DIFFUSION in liquids is slower than diffusion in gases because the particles in a liquid move more slowly

Because when it will GET in contact of HOT surface it get vaporised very FAST .
and our SKIN temperature is HIGH so that's why .. it get vapourised

So frnd ur answer is --

For disproportionation reactions, use a TRICK to find equivalent mass; E = E1 + E2; where E1 and E2 are equivalent masses of oxidation and reduction HALF reactions of same element.

Now, find the n-factor(total change in oxidation number per molecule) and then equivalent mass = molar mass/n-factor.

So, when H3PO2 changes into PH3, oxidation state of phosphorous changes from +1 to -3 so as n-factor is 4. Also when H3PO2 changes into H3PO4, oxidation state of phosphorous changes from +1 to +5 so as n-factor is again 4.

Now equivalent mass of H3PO2, E =(M/4) + (M/4) = M/2

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By roult's law it is = X × p
= .8 × 40 mm Hg = 32 mm Hg

Hi friend,

# 17.64 N

SOLUTION :-

In 1ml of solution we have 0.6g NH4OH.

But the DEFENATION of normality says moles in 1 L solution.

So, the mass of solution ( NH4OH) in 1,000 ml = 0.6×1000ml = 600g

Thus , moles = mass / equivalent mass

Equivalent mass = Molar mass / n-factor

n-factor for NH4OH is 1

So, 600/34 = 17.64 N (proved )...i hope it HELPS you

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Electronegative elements are thise which are capable of getting electrons easily.

Generally, Non-Metals are more electronegative and metals are more electropositive.

Electronegativity INCREASES left to RIGHT (across) the PERIOD and DECREASES down the group.

Atomic Number of Boron (B) - 5 . (P-2 , G-13)
Atomic Number of Carbon (C) - 6 . (P-2 , G-14)
Atomic Number of Nitrogen (N) - 7 . (P-2 , G-15)
Atomic Number of OXYGEN (O) - 8 . (P-2 , G-16)
Atomic Number of Aluminium (Al) - 9 . (P-3 , G-13)

here P stands for 'Period' and G stand for 'Group'

So most electonegative element is Oxygen.

CrO5 has 2 pair in PEROXIDE(4) OXYGEN it IMPLIES that 4 oxygen is in -1 state and one in -2 state

The DEFINITION of evaporation is- the PROCESS of CONVERTING LIQUID state into vapour at any temperature which is below it's boiling point is called evaporation

The REQ. AMOUNT of OXYGEN =16/18×90=80 KG of oxygen

The solubility is known as the power of a SOLUTION to dissolve a amount of solute in it and the solubility product is a product which is OBTAINED by dissolving or amount of solute into the solution

<P>Answer: Orbital angular momentum DEPENDS on the value of azimuthal quantum number.

Explanation:

Azimuthal Quantum Number : It describes the shape of the orbital. It is represented as 'l'. The value of l ranges from 0 to (n-1). For l = 0,1,2,3... the orbitals are s, p, d, f...

The orbital angular momentum of an electron is GIVEN by:

l = azimuthal quantum number

h = plank's constant

Thus Orbital angular momentum depends on the value of azimuthal quantum number i.e the value of l.

ANSWER:

NARENDRA MODI.....................

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Highly reactive metals with lower reduction potentials than hydrogen are not obtained by electrolysis of aqueous solutions of their SALTS since their cations cannot be reduced at cathode in presence of WATER. Instead of reduction of these metal cations, water UNDERGOES reduction.

Al and Mg are reactive metals with lower reduction potentials.

Usually d-block elements are less reactive and HENCE can be prepared by electrolysis of their aqueous solutions.

the correct and is B)Al and Mg

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Let's take the CASE of NaCl.

NaCl->Na+ + Cl-

[Cl-]=[NaCl]=3.78*1000/58.5*100=?

{Molarity=weight(in g)*1000/Mol.mass(in g/mol)*volume}

Now, BaCl2.

BaCl2->BA2+ + 2CL-

[Cl-]=?

[BaCl2]=[Cl-]/2=?

[Cl-]/2=w*1000/208.3*250

{Mol. mass of BaCl2=208.3, Ba=137.3, Cl=35.5}

w=[BaCl2]*208.3*250/1000=?

Since the options are not given, I am giving the answer BASED on the options from another website.

The CORRECT answer should be - Rate is proportional to the surface coverage 

Rate = k[PH₃]

The rate is dependent on the surface coverage as under conditions of low pressure, the surface area covered will be proportional to the partial pressure of PHOSPHINE (PH₃). So, it will be a FIRST order reaction with respect to Phosphine (PH₃).

The EQUATIONS are here -

θ = 1+kP1+kP

θ = fraction of surface area covered at low pressure

θ = k P

No.of MOLES of ETHANOL =mass÷molar mass=23÷46=0.5 moles
no.of moles of water=36÷18=2moles
mole FRACTION of ethanol=0.5÷(0.5+2)=0.2 moles

I THINK that the first is SOLUTE and the second ONE is SOLVENT.

The answer is H2 as it has all ELECTRONS in the orbitals PAIRED up. Other all have one UNPAIRED ELECTRON. Hence only H2 is diamagnetic.