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ANSWER:

FIRST tell of which element you want ??

for oxygen OXIDATION number is -2

where as for chlorine oxidation number is 1

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ANSWER:

COMMON in MEANS the atoms which shares electrons

to make octave

Answer:

Lithium Aluminum Hydride LIALH4 is the stronger 'common' carbonyl reducing agent. In addition to reducing aldehydes and KETONES like NaBH4, LiAlH4 will also reduce CARBOXYLIC ACIDS and CARBOXYL derivatives.

Explanation:

Explanation:

Electrophilic Substitution REACTIONS. ... Anelectrophile MEANS an ELECTRON seeking species. Haloarenes will undergo the usual BENZENE ring reactions such as nitration, HALOGENATION, Friedel-Crafts reactions and sulphonation. We know that haloarenes are electron-rich compounds.

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ANSWER:

F = -0.2 N

Explanation:

Here, m = 10 × 10^-3 kg

t = 0.1 sec

u = 20 m/s

v = 0

Now, a = v-u/t

= 0-20/0.1

= -20 ms^-2

F = ma

= 10 × 10^-3 × -20

= -200 × 10^-3

= -0.2 N

HOPE THIS HELPS YOU.......

The example of a soap is sodium stearate.

Soap molecules have both properties of polar and non polar at OPPOSITE ends of the molecule. The oil is a pure hydrocarbon so it is non-polar.

•The non-polar hydrocarbon tail of the soap dissolves into the oil.

In this PICTURE sodium stearate's polar and non polar parts are described very VIVIDLY . •The polar and non polar parts of the soap sodium stearate is very much important for everything related with CHEMISTRY and polarity CHAPTER,It can clear out the doubt about polar and non polar 's theory

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EXPLANATION:

P1 +Cl5-------->PCL5

ANSWER:

Ethene is PASSED into concentrated sulphuric acid to MAKE ethyl hydrogensulphate. The product is DILUTED with water and then distilled. The water reacts with the ethyl hydrogensulphate to produce ETHANOL which distils off.

Explanation:

Answer:

Apply Raoult law

Explanation:

TOTAL v.p = x1P1 + x2P2

where x1 is MOLE fraction of toluene P1 is v.p. of toluene

x2 is mole fraction of BENZENE P2 is v.p. of toluene

mole fraction = number of MOLES / total number of moles

Moles = weight of substance / molar mass

Answer:

Alkenes REACT with concentrated SULPHURIC ACID in the cold to produce alkyl hydrogensulphates. Ethene REACTS to give ethyl hydrogensulphate.

ANSWER:

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ANSWER:

The producer gas is a MIXTURE of nitrogen and carbon MONOXIDE. Two thirds by volume is nitrogen and one third by volume is carbon monoxide. Carbon monoxide is combustible gas in the mixture. ... producer gas is not considered as good FUEL because it contains Nitrogen which does not burn.

Explanation:

ANSWER:

OXYGEN is REQUIRED for burning if oxygen is not there fire does not BURN

ANSWER:

RESONANCE STRUCTURE :

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Answer:

Vant HOFF FACTOR for DISSOCIATION -

i =1-a+a/n

where n=

number of particles associated=2

degree of association=a

i=0.5

put VALUE,

0.5=1-a +a/2

-0. 5=-a/2

a=1

option A is right.

ANSWER:

the SHAPE of the PHOSPHORUS is LIKE PYRAMIDAL

The Henderson-Hasselbalch EQUATION STATES that pOH = pKb + log([salt]/[BASE]). Hence, assuming you know the values of [salt] and [base], you can take the negative log of Kb. ADDING pKb and log([salt]/[base]) will then give you your pOH value. From there, subtract pOH from 14 to find pH as pH + pOH = 14.
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Answer:

no GENERALLY ZNO is amphotric nature MEANS it can act as both acidic and basic as like Al2O3.as like this ZN(OH)2 is also amphotric and weak base also

Explanation:

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ANSWER:

PLEASE CHECK the QUESTION, it is INCOMPLETE

ANSWER:

The Pauli Exclusion Principle STATES that, in an atom or molecule, no two electrons can have the same four electronic QUANTUM numbers. As an orbital can contain a maximum of only two electrons, the two electrons MUST have opposing spins. OKK Jaan

ANSWER:

Photochemical chlorination of alkane takes PLACE by free radical mechanism which are possible by HOMOLYSIS of Cl−Cl bond by sunlight.

Cl

2

hν

Cl

∙

+Cl

∙

CH

3

−CH

3

+Cl

∙

⟶

∙

CH

2

CH

3

+HCl

Cl−Cl+

∙

CH

2

CH

3

⟶Cl−CH

2

CH

3

+Cl

∙

RHIZOBIUM BACTERIA is associated with the absorption of ATMOSPHERIC NITROGEN

Explanation:

base will change COLOR of litmus paper to blue

in acid and salts , color of litmus will be UNCHANGED

now MIX any of the 2 solutions with base

if it is salt so base+salt=base so litmus will change to blue

if it is acid:base+acid = neutral so the litmus will be RED

so the solutions are identified

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Answer:

The IONS in a compound such as sodium CHLORIDE are arranged in a lattice STRUCTURE. ... But when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic COMPOUNDS do conduct ELECTRICITY. When a crystal of an ionic compound dissolves in water, the ions separate.

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Answer:

ANSWER

The number of sigma and pi-BONDS in 1-butene 3-yne are 7 sigma and 3 pi. It has one C=C double BOND which CONTAINS one pi bond. It has one C≡C TRIPLE bond which contains two pi bonds. It has 3 carbon carbon sigma bonds and 4 C−H pi bonds.

solution

ANSWER:

CH

3−COO−CH

2−CH

3

these are the REACTION of ETHYL ALCOHOL

ANSWER:

ACCORDING to the LAWS of CHEMISTRY ............ z=p=e

Answer:

It describe that the number of moles of a SUBSTANCE per LITRE liquid . It is MOLE IA a unit of measurement of CHEMICAL substance.

Answer:

In 2,2,4,4-Tetramethylpentane, there are two 4 ° carbon atoms PRESENT. 4 ° carbon atom is one which is attached to other 4 carbon atoms.

Explanation:

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ANSWER:

Here u go:

• Negative electrode is called cathode, positive electrode is called anode.
• Negative electrode is CONNECTED to negative terminal of BATTERY while positive electrode is connected to positive terminal of battery.
• Metals are deposited at negative ELECTRODES while gases are liberated at positive electrode during electrolysis.
• Oxidation occurs at negative electrode while reduction occurs at positive electrode.

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ANSWER:

Acetic acid UNDERGOES the typical chemical reactions of a carboxylic acid. ... When heated above 440 °C (824 °F), acetic acid decomposes to PRODUCE carbon dioxide and methane, or to produce ketene and water: CH3COOH → CH4 + CO. CH3COOH → CH2CO + H2O

Answer:

a GROUP of ATOMS responsible for the chemical properties of an ORGANIC COMPOUND

eg. alcohol's functional group is OH

aldehyde's functional group is CHO

Explanation:

Osmotic PRESSURE can be thought of as the pressure that would be required to stop water from diffusing through a barrier by OSMOSIS. In other words, it refers to how hard the water would “push” to get through the barrier in order to diffuse to the other side.Osmotic Pressure Equation

Osmotic pressure can be CALCULATED using the FOLLOWING equation:

Π = MRT

In this equation:

π

Importantly, π does not equal 3.14… in this equation!

Instead, here “π” is the symbol used to denote osmotic pressure. You can think of this equation as SOLVING for“π” just like solving for X.

ANSWER:

ketons

Explanation:

SCIENCE depend UPON the information you need to get the same as WELL

Answer:

Uncertainty principle, ALSO called Heisenberg uncertainty principle or INDETERMINACY principle, statement, articulated (1927) by the German physicist WERNER Heisenberg, that the position and the VELOCITY of an object cannot both be measured exactly, at the same time, even in theory.

all renewable RESOURCES

eg.

sun,WIND, GEOTHERMAL energy ETC

Rivers: ADVERTISEMENTS: ...

STREAMS: RAINWATER infiltrates into the soil and subsequently joins the ground water STORAGE. ...

Lakes: ...

Reservoirs: ...

Open Wells: ...

Tube Wells: ...

Artesian Wells: ...

Infiltration Gallery:

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Answer:

Test tube A contains distilled water which is considered as soft water which has no free ions, and thus the length of foam in test tube A will be longest.

Test tube B contains UNDERGROUND water which contains ions like Mg

+2

,Ca

+2

, ETC. which reacts with soaps to form salts of fatty acids called scum which is insoluble in water and thus the length of foam will be less as compared to that in test tube A.

Test tube C contains distilled water with CaSO

4

, which contains Ca

+2

ions which reacts with soaps to form salts of fatty acids, i.e., scum and thus the length of foam in test tube B will be less as compared to that in test tube A.

Hence the length of foam in test tube A will be longest.

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ANSWER:

Fossil fuels such as oil, natural gas, and coal are examples of nonrenewable resources. Humans constantly DRAW on the RESERVES of these SUBSTANCES while the formation of new supplies takes eons. Renewable resources are the opposite: Their supply replenishes naturally or can be sustained.

<P>NaH₂PO₄

Na and H have OXIDATION number +1

O has oxidation number -2

Let oxidation number of P be x

Sum of TOTAL oxidation number = 0

1+2+x-8 = 0

-5+x = 0

x = 5

there are 2 PARAMAGNETIC ANIMALS and to NON paramagnetic ELEMENTS the paramagnetic elements are Er+3, Nd+3 and the non paramagnetic elements are La+3, Pm+3.

Answer:

taking 3OHM and 6 OHM in series so,

EQUIVALENT resistance 9 ohm.

then all resistance in Parallel.

so 1/R =1+1/9 +1/9=11/9

R =9/11 ohm

also solution in IMAGE.

Answer:

1. Oxidation is the process of **loss of electrons** whereas Reduction is the process of **gain of electrons**.

2. Oxidation can ALSO be **GAINING of OXYGEN atoms** whereas Reduction is **loss of Oxygen atoms**.

3. Oxidation can also be **loss of HYDROGEN atoms** but Reduction is the **gain of Hydrogen atoms**.

Explanation:

ANSWER:

I THINK it is Nd+3.

May be CORRECT

EXPLANATION:

TERTIARY > secondary > PRIMARY > METHYL.

EXPLANATION:

See ATTACHED PICTURE for the answer to the QUESTION

ANSWER:

MG2 and NE................

ANSWER:

When an electron absorbs energy, it JUMPS to a higher orbital. An electron in an excited state can release energy and 'fall' to a lower state. ... When the electron returns to the ground state, it can no longer release energy, but can ABSORB QUANTA of energy and move up to excitation states (higher orbitals).

ANSWER:

The answer is

(a)METHANE