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49701.

Kindly solve this urgently need an ans​

Answer»

if you are SATISFIED with my ANSWER MARK it as BRAINLIEST answer.

49702.

❤_____What are the application of colloids ??​

Answer»

Commercial Applications of ColloidA colloid is used as thickening AGENTS in industrial products such as lubricants, LOTIONS, toothpaste, coatings, ETC. In the manufacture of paints and inks, colloids are useful. In ball-point pens, the ink used is gel (liquid-solid colloid).mark me as the BEST

49703.

What u mean by tranquilizers..and give it's example??

Answer» TRANQUILIZERS are a class of chemical COMPOUND used for the treatment of stress and mild or severe mental DISEASES. E.g. Haldol, Thorazine, etc.Please rate me as the brainliest! HOPE THIS ANSWER HELPS YOU
49704.

LLOW USLIUILS8 For a reactionreaction, A+B Product; the rate law is diact; the rate law is given by, r =k[A] 2 [B]'.hat is the order of the reaction?What is​

Answer»

A+B PRODUCTS;is the CORRECT ANSWER .....

49705.

❤_____What is desorption ?????​

Answer»

Surface MEASUREMENT Systems develops and engineers innovative experimental techniques and INSTRUMENTATION for physico-chemical characterization of complex solids. We are the world leaders in Dynamic Vapor Sorption (DVS) TECHNOLOGY and Inverse GAS Chromatography instrumentation and solutions, providing PROFESSIONAL world-class scientific and technical support for our international customers.Our solutions help thousa

49706.

❤___Explain temperature dependence of rate of reaction ??​

Answer»

When we INCREASE temperature FOOD COOKS quickly. So there is temperature dependence on RATE of reaction. It is different in different substances. Hope it helps you & Hope it helps you & Mark me the brainliest !!!Hope it helps you & Mark me the brainliest !!!Follow me for more TRICKS

49707.

What are the methods of concentration of ores ???​

Answer» HEY,firstly concentration of ores refers to REMOVING gangue particles from ore.so based on nature of ore ,we use different methodsExplanation:hydraulic washingIn this METHOD ore is washed with water inorder to remove lighter particles,they get washed away and the ore will settle at bottom.this method is also called as hydraulic washing 2.FROTH flotation methodin this process, ores containing sulphides are being concentratedthis process will make use of wetters,depressants,stabilizers etc... to improve non wettability of ore and to stabilize the froth 3.Leachingthis method is used for leaching ores like bauxitethis is a chemical reaction carried out Ag,Au are extracted from this processhope you understandthis is by my understandingif it helps you,then do like
49708.

16. The mineral acid in the following is1) HCI 2) CH,COOH3) oxalic acid 4) formic acid17.The formula of caustic soda is1) Na,CO,10H,0 2) NaCl3) NaOH 4) NaHCO,18.The sour taste of lemons is due to1) Formic acid3) Acetic acid2) Citric acid4) None​

Answer»

tion:16 : HCL17: SODIUM hydroxide18: CITRIC acidhope this helpsplzz MARK as BRAINLIEST

49709.

What is the process of refining of aluminium ???​

Answer»

OF REFINING OF ALUMINIUM......Alumina is produced from BAUXITE, an ore that is mined from topsoil in various tropical and SUBTROPICAL regions. The Bayer process, discovered in 1887, is the primary process by which alumina is extracted from bauxite. To PRODUCE pure aluminum, alumina is smelted USING the Hall–Héroult electrolytic process.SELECT TO BRAINLIST ANSWER...

49710.

What are the applications of colloids ??​

Answer» TIONS of Colloid-Building roadsMetallurgical operationsSmoke ScreenFormation Of DeltaPurification of WaterSmoke precipitationSewage DisposalLeather TANNING
49711.

What are emulsions ????​

Answer»

sion is a colloid of two or more immiscible liquids where one liquid CONTAINS a dispersion of the other liquids. In other words, an EMULSION is a SPECIAL type of mixture made by combining two liquids that normally don't mix. ... The process of TURNING a liquid mixture into an emulsion is called emulsification.

49712.

How many moles of water H20 are present in 75.0 g of H2O

Answer»

no. of MOLES = GIVEN mass / molecular massmolecular mass of H2O= 1*2+16=18uno. of moles = 75.0/18=4.16

49713.

❤___What is coagulation ???​

Answer» TION, also known as clotting, is the PROCESS by which blood CHANGES from a liquid to a GEL, forming a blood clot. It potentially results in HEMOSTASIS, the cessation of blood loss from a damaged vessel, followed by repair.mark me as the best
49714.

The organic acid in the following is HCl,formic acid,phosphric acid or H2CO3​

Answer» HEM, FORMIC ACID is ORGANIC.
49715.

in case of fire before the firemen use the water horse is the start of the main electrical supply for the area explain why they do this?

Answer»

fire, The electric supply is to be turned off. It has to be DONE to avoid any KIND of short CIRCUIT in the AREA.

49716.

How is a chemical bond is formed explain in detail

Answer»

A CHEMICAL bond is formed by two TYPES of bonding. 1) Ionic bondThis bond is formed between metal and non-metal. this bond is formed by give and take of electrons. EX-NaCl.2) covalent bondThis bond is formed between non metals.This bond is formed by SHARING of electrons. Ex- CO2.

49717.

Explain processes of purification of colloids ??​

Answer»

Some of the methods of purification of a colloidal solution are stated below:•Dialysis The process in which the ions are removed from the solution by the phenomenon of diffusion through a permeable membrane is known as dialysis. In this process, a sol CONSISTING of ions or molecules is FILLED in a permeable membrane bag, dipped in the WATER. The ion from the solution diffuses through the permeable membrane. Because of the continuous flow of water, the concentration of electrolyte OUTSIDE the membrane is neutralized. For e.g.: Ferric hydroxide sol is purified by using this method.•ElectrodialysisIn this process dialysis of colloidal solution is carried under the effect of electric field. Some potential is applied between the metal screens that support the membranes. Due to this potential, the speed of the ions moving in the direction of opposite electrodes is increased. Thus the rate of dialysis is increased. This method is not useful for the non-electrolyte impurities like urea etc.•UltrafiltrationIf filter paper is made with the colloidal or some regenerated cellulose like cellophane, the size of the pores is decreased. This modified form of filter paper is known as ultrafilter. The process in which the particles of the solution are removed out from the liquid medium by electrolysis and by using this ultrafilter is known as ultrafiltration. It is a slow process. To speed up the process some external gas pressure has to be applied.•Electro DecantationThis method can be useful for the purification as well as for the concentration of the sol. When this process is carried without stirring the solution, then the bottom layer settles down while the top layer consists of pure and concentrated colloids, which can be decantated.Hope it's helpplease mark me as brainliest(◠‿◕)

49718.

❤__explain work of a catalyst with example ??​

Answer»

duction of most industrially important CHEMICALS involves catalysis. ... A catalyst WORKS by providing an alternative reaction PATHWAY to the reaction product. The rate of the reaction is INCREASED as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.mark me as the best

49719.

Hydrogen does not combine with​

Answer»

and MARK it as BRAINLIST

49720.

what happens when aqueous solution of sodium sulphate and Barium Chloride are mixed you a balance equation for the reaction with state symbols name and define the type of chemical reactions involved in the about change​

Answer»

Na2SO4+BaCl2=2NaCl+BaSO4is UR ANS

49721.

❤__explain lyophilic colloids and lyophobic colloids ​

Answer»

CHEMISTRYWhat are lyophilic and LYOPHOBIC sols? Give one example of each TYPE. Why are hydrophobic sols easily coagulated?November 22, 2019avatarMehek JoonSHAREVIDEO EXPLANATIONANSWERIn lyophilic sols, the dispersed phase particles have great affinity (or love) for the dispersion medium. These sols are reversible. Examples include gum, gelatin, starch, proteins and rubber etc.In lyophobic sols, the dispersed phase particles have no affinity (or love) for the dispersion medium. These sols are irreversible. Examples include solutions of metals such as gold and silver, metal hydroxides and metal sulphides.The hydrophobic sols are LESS stable and easily coagulated than hydrophilic sols because, the STABILITY of hydrophobic sols is due to charge only and the stability of hydrophilic sols is due to charge and solvation/ hydration.November 22, 2019

49722.

Due to lightning, atmospheric nitrogen combines with oxygen to produce nitrogen monoxide (NO). Give the chemical equation of this reaction.​

Answer» NITROGEN combines with oxygen in the ATMOSPHERE during lightning flashes to form nitrogen MONOXIDE, NO, which then reacts further with O2 to produce nitrogen dioxide, NO2, ACCORDING to the FOLLOWING equation:N2 (g) + O2 (g) --> 2 NO (g)2 NO (g) + O2 (g) --> 2 NO2 (g)
49723.

Explain Effective collisions ???​

Answer»

VE COLLISION :An effective collision is ONE in which CHEMICAL bonds are BROKEN and a product is FORMED. ⚠

49724.

❤_____Explain collision frequency ???​

Answer»

Collision frequency is the average rate in two reactants collide for a GIVEN SYSTEM and USED for expressing average number of collisions per unit time Explanation:~FOLLOW me please and Mark as brainliest I'm Tannu Rana ♥

49725.

How to balance chemical equation​

Answer»

first of all u BALANCE all other elements except oxygen and hydrogenthen balance oxygen and check WHETHER it is causing any DISTURBANCE in previous one or notif is disturbing thn balance according to itand in last hydrogen with the same as PROCEDURE used for oxygen

49726.

Which separation technique used to separate the butter from curd

Answer»

Centrifugationfollow me and MARK as BRAINLIEST .

49727.

Difference between adsorption anf absorption ??​

Answer»

hey,Explanation:adsorption:it happens over the surfaceit is not UNIFORM throughtabsorptionIt TAKES place THROUGHOUT the bodyit is uniform

49728.

Define a co-ordinate Bond and give the conditions for its formation.​

Answer»

Co-ordinate Bond is a special type of covalent bond in which the electron pair is shared between the two COMBINING atoms but it is provided entirely by one of the combining atoms.Explanation:Conditions for the FORMATION of a COORDINATE bond are --->1) One of the combining atoms must be lacking ATLEAST one lone pair of electrons 2) ANOTHER atom must have at least one lone pair of electrons.Hope it helps Ya!!❤️❤️

49729.

Explain van't hoff factor ?????​

Answer»

What is the Van’t Hoff Factor?The Van’t Hoff factor offers insight on the effect of solutes on the colligative properties of solutions. It is denoted by the symbol ‘i’. The Van’t Hoff factor can be defined as the ratio of the concentration of particles formed when a SUBSTANCE is dissolved to the concentration of the substance by mass.The extent to which a substance ASSOCIATES or dissociates in a solution is described by the Van’t Hoff factor. For example, when a non-electrolytic substance is dissolved in water, the value of i is generally 1. HOWEVER, when an ionic compound forms a solution in water, the value of i is EQUAL to the total number of ions present in one FORMULA unit of the substance.

49730.

Balance the following ​

Answer» REFER to the attachmentExplanation:50 POINTS me post karna THA ISE
49731.

Explain about abnormal molar mass ??​

Answer»

It is a given chemical SUBSTANCE(G) DIVIDED my AMOUNT of substance (mol). Mark me the brainliest !!!Follow me for more knowledge !

49732.

Why is so2 acidic in nature

Answer»

So2 is acidic in nature because of it's tungent odour (SMELL) and ALSO it is sour in taste and also it changes BLUE litmus red.

49733.

Arrange it in a increasing order FCIBr1

Answer»

NsbsbsbsbsbsvsvececececcscscscscscsczbbzzvvxxgbzbxbxbzbbzbsheydysijdhshdbbdhdExplanation:Hshshshhsgsvsvshahha bsbsbsbabbabsbsbsb

49734.

True /false : PVC is a type of polymer?

Answer»

tion:It is true.Because, POLYVINYL chloride is the world's third-most widely produced synthetic plastic polymer. About 40 million tons of PVC are produced each year. PVC comes in TWO basic forms: rigid and flexible. The rigid form of PVC is used in construction for pipe and in profile applications such as DOORS and windows.IF U FEEL THIS HELPFUL MARK ME THE BRAINLIEST PLEASE

49735.

5 example of change in state

Answer»

1 VAPORIZATION 2 CONDENSATION 3 melting 4 freezing 5 sublimation 6 deposition.I hope you LIKE it....

49736.

Explain molar conductivity ????​

Answer»

onductivity or Molar ConductanceMolar conductivity is defined as the conducting power of all the ions PRODUCED by dissolving one mole of an electrolyte in solution.It is denoted by (lambda). Molar conductance is RELATED to specific conductance () as,where, M is the molar CONCENTRATION.If M is in the units of molarity i.e., moles per litre the may be expressed as,For the solution containing 1 gm mole of electrolyte placed between two parallel electrodes of 1 sq. cm area of cross-section and one cm apart,But if solution contains 1 gm mole of the electrolyte THEREFORE, the measured conductance will be the molar conductivity. Thus,In other words, where V is the volume of the solution in containing one gram mole of the electrolyte.If M is the concentration of the solution in mole per litre, thenM mole of electrolyte is present in 1 mole of electrolyte is present in of solutionThus, containing 1 mole of electrolyte.or Units of Molar Conductance: The units of molar conductance can be derived from the formula ,The units of are S and units of are, ACCORDING to SI system, molar conductance is expressed as if concentration is expressed as

49737.

Explain Faraday's law of electrolysis ??​

Answer»

Whenever the number of magnetic lines of FORCE PASSING trhough coil CHANGES, the current is induced in the coil. This is KNOWN as Faraday's law of induction.Hope it helped..

49738.

What are batteries ???????​

Answer» TWO or more cells joined together to get ELECTRICITY are CALLED batteriesMark me the brainliest !!! Inbox me AND Follow me
49739.

Explain properties of red phosphorus ???​

Answer»

Red phosphorus is one of the most common allotropes of phosphorus and is considered to be a DERIVATIVE of the P4 molecule. ... It is found to be more STABLE than WHITE phosphorus (another naturally occurring phosphorus allotrope). Red phosphorus is characterized by its deep red COLOR and powdery texture.Red phosphorus formula: P4 (chain)Melting point: 860KDensity: 2.34 grams per cubic centimeterhope it helpss

49740.

Explain rate of reaction ??.................​

Answer»

reaction is DEFINED as the change in concentration of a REACTANT or product PER unit TIME.

49741.

What is the rate of a reaction ?​

Answer» CTION rate or rate of reaction is the speed at which reactants are converted into products. For example, the oxidative rusting of IRON under Earth's atmosphere is a slow reaction that can TAKE many years, but the COMBUSTION of cellulose in a fire is a reaction that takes place in FRACTIONS of a second.
49742.

What are the properties of red phosphorus ??​

Answer»

Red PHOSPHORUS is odorless and has a deep red Colour. It is not POISONOUS to humans, in CONTRAST to the WHITE phosphorus allotrope. Upon heating to temperature above 300°c, red phosphorus undergoes crystallisation. It can also assume a cubic STRUCTURE in its crystal lattice. Explanation:Hope it will help you.

49743.

copper sulphate+ sodium hydroxide gives sodium sulphate + copper hydroxide. balance the following equation​

Answer»

CuSo4+Na(OH)2 = NaSo4+Cu(OH)2

49744.

What is the rate of reaction ??​

Answer»

Rate of a Chemical Reaction. ... The speed or rate of a chemical reaction is the change in CONCENTRATION of a reactant or product PER unit TIME. To be specific, it can be expressed in terms of: the rate of decrease in concentration of any of the reactants. the rate of INCREASE in the concentration of any of the products.

49745.

❤_______explain force ??​

Answer»

the PUSH or pull of an object is CALLED force ......please follow me...please MARK as BRAINLIST..

49746.

Show that t1/2=0.693/lambda​

Answer»
49747.

Arrange the carbanions in the order of their decreasing stability : (CH3)3C, CCl3,(CH3)2CH, C6H5CH​

Answer» C6H5CH LEAST stableCH3)2CHCCl3CH3)CEXPLANATION:
49748.

Oxygen is the most abundant element in both the Earth's crust and thehuman body/It exists as a mixture of threestable isotopes in nature . find atomic mass of oxygen ?​

Answer» ATOMIC MASS of OXYGEN is 15.999
49749.

Advantages of evaporation over crystallization

Answer»

Solids LIKE sugar get charred on heating to DRYNESS during evaporation. There is no such PROBLEM in crystallisation .The soluble impurities do not get removed in the PROCESS of evaporation but such impurities get removed in crystallisation.Explanation:

49750.

How to work chemistry between a girl and a boy?

Answer» USE ncert CHEMISTRY PLUS one and plus two text book Explanation:It will be easy to work out if you PRACTICE daily