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H2+Cl2=2HCl

H2 + Cl2 gives out 2 HCL

Because Sodium sulphate salt is made by reaction of sulphuric acid (strong acid) the sodium hydroxide (strong base) , thus on combining the opposite effects of acid and base neutralize each others effect completely leading to the formation of a neutral salt.Sodium carbonate salt is made of reaction of carbonic acid and sodium hydroxide . on combining the basic character will be more as a week acid can not neutralize a strong base completely . so the salt formed is basic in nature.

The balanced equation is H2+Cl2---≥ 2HCl

By law of conservation of mass , In a chemical reaction Total mass of reactants = Total mass of products mass of sodium sulphate + 5.22 = 6.1 + 2.8 mass of sodium sulphate = 8.9 - 5.22 = 3.68 g

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(1) Transport of oxygen and carbon-dioxide occurs with the help of respiratory pigment called hemoglobin.

(2) The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m).

(3) When a silver spoon is immersed in a copper sulphate solution, nothing happens. It is because silver is less reactive than copper according to the electrochemical series, so it can not displace copper from copper sulphate solution. However copper would have replaced silver if the case was opposite.

(4) Dark coloured bottles interrupt the path of light such that light cannot reach silver chloride in the bottles and its decomposition is prevented. It is known that silver chloride decomposes to silver and chlorine in the presence of light.

AgNO3-silver nitratecalcium carbonate-CaCO3barium chloride-BaCL2sodium sulphate-Na2SO4

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(i) AgNo3(ii) Caco3(iii)BaCl2(iv)Naso4

Salt, sugar, and many other substances dissolve in water toform homogeneous mixtures. A homogeneous mixturein which there is both a solute and solvent present is also a solution.

The answer is option D

Given that, formula of first oxide = M3O4Let mass of the metal = x% of metal in M3O4= (3x/ 3x+64) *100but as given % age = (100-27.6) = 72.4 %so, (3x/ 3x+64)*100 = 72.4or x = 56.in 2nd oxide,oxygen = 30%....so metal = 70%so, the ratio isM : O70/56 : 30/161.25 : 1.8752 : 3so, 2nd oxide is M2O3

a) Cb) Cc) Pd) C

Metallic oxides reactwithacidsto form salt and water. This is quite similar to thereactionsof a base withacidto form salt and water.Metallic oxideslike quicklime(CaO), copper (II)oxide(CuO), magnesiumoxide(MgO),etc.,reactwithacidsto form salt and water

Metallic oxides reactwithacidsto form salt and water. This is quite similar to thereactionsof a base withacidto form salt and water.Metallic oxideslike quicklime(CaO), copper (II)oxide(CuO), magnesiumoxide(MgO),etc.,reactwithacidsto form salt and water

matelic oxides react with acids to form salt and water

Metal oxide reacts with acids to give salt and water.i.eThis is quite similar to thereactionsof a base withacidto form salt and water.Metallic oxideslike quicklime(CaO), copper (II)oxide(CuO), magnesiumoxide(MgO),etc.,reactwithacidsto form salt and water. NaOh+HCL---NaCl+H2O

it's the right answer this question

metallic oxides are basic in nature. Hence, when you add acid to it, it will neutralize each other. formation of salt and water occurs!!!

metal oxide reacts with acids to give salt and water

metal oxide are basic in nature hence

matelic oxides react with acids to form salt and water

Metal oxides are basic in nature. Thus, when an acid reacts with a metal oxide both neutralize each other. In this reaction, respective salt and water are formed.

Acid + Metal Oxide ⇨ Salt + Water

Example:Calcium is a metal, thus calcium oxide is a metallic oxide which is basic in nature. When an acid; such as hydrochloric acid; reacts with calcium oxide, neutralization reaction takes place and calcium chloride; along with water; is formed.

2HCl + CaO ⇨ CaCl2+ H2O

Similarly, when sulphuric acid reacts with zinc oxide, zinc sulphate and water are formed.

H2SO4+ ZnO ⇨ ZnCl2+ H2O

When hydrochloric acid reacts with aluminium oxide, aluminium chloride and water are formed.

Al2O3+ 6HCl ⇨ 2AlCl3+ 3H2O

Acidic oxides, oracidanhydrides, areoxidesthat react with water to form anacid, or with abaseto form a salt. ... Sodium and magnesiumoxidesare alkaline, aluminiumoxidesareamphoteric(reacting both as abaseoracid), while silicon, phosphorus, sulphur and chlorineoxidesareacidic.

An amphoteric oxides in an oxide than can act as either an acid or base in a reaction.examples: AL2O3 is an amphoteric oxide.when reacted with HCL,its acts as a base to form. the salt ALCL3.

when reaction is reversed , the K will be become reciprocal of the earlier.

But here , the coefficients are also halved , so, the equilibrium constant will have half power.l on it.

K' = 1/√K .... option 3

Solubility is inversely proprotional to Kh

(iii) Ar < CO2< CH4< HCHO

Mercuricoxide decomposes to themetaland oxygen on heating.

when the coefficients are halved , then the equilibrium constant becomes 1/2 power of actual constant

so, here the equilibrium constant will be = √K

C2H2 is the right answer

A, option is correct answer

C2H2 IS CORRECT ANSWER

notcome the abswer

b+2 has more ionic radius

जैसा कि नीचे दिए गए आंकड़ों में देखा जा सकता है, परमाणु त्रिज्या एक समूह में ऊपर से नीचे तक बढ़ती है, और एक अवधि के लिए बाएं से दाएं तक घट जाती है

इसे z / e के आधार पर समझाया जा सकता है, जहाँ z / e अनुपात बढ़ता है, आकार घटता है और जब z / e अनुपात घटता है तो आकार बढ़ता है।

z परमाणु संख्या है और e इलेक्ट्रॉनों की संख्या है।

ली + के लिए, z / e = 3/2 = 1.5

F- के लिए, z / e = 9/10 = 0.9

O2- के लिए, z / e = 8/10 = 0.8

B3 + के लिए, z / e = 5/2 = 2.5

सही विकल्प है O2-

16)Thereactionin which alkyl halides on treatment with sodium metal in dry ethereal (free from moisture) solution give higher alkanes is known asWurtz reactionand is used for the preparation of higher alkanes containing even number of carbon atoms.

The Wurtz reaction, named after Charles-Adolphe Wurtz, is a coupling reaction in organic chemistry, organometallic chemistry and recently inorganic main group polymers, whereby two alkyl halides are reacted with sodium metal indryether solution to form a higher alkane: 2R–X + 2Na → R–R + 2Na+X

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b. It isdefinedas chemical decomposition of oils and fats is calledrancidity. It spoils food materials that makes difficult for consumption.

Adecomposition reactionoccurs when one reactant breaks down into two or more products. It can be represented by the general equation:

AB → A + B

In this equation, AB represents the reactant that begins the reaction, and A and B represent the products of the reaction. The arrow shows the direction in which the reaction occurs.

What is the chemical equation for the decomposition of hydrogen peroxide (H2O2) towater(H2O) and oxygen (O2)?

The equation for this decomposition reaction is:

2 H2O2→ 2 H2O + O2

Other Examples of Decomposition Reactions

Two more examples of decomposition reactions are described below.

Carbonicacid(H2CO3) is an ingredient in soft drinks. A decomposition reaction takes place when carbonicacidbreaks down to producewater(H2O) and carbon dioxide (CO2). This occurs when you open a can of soft drink and some of the carbon dioxide fizzes out. The equation for this reaction is:

H2CO3→ H2O + CO2

Another decomposition reaction occurs when water (H2O) breaks down to produce hydrogen (H2) and oxygen (O2) gases (seeFigurebelow). This happens when an electriccurrentpasses through the water, as illustrated below. The equation for this reaction is:

2 H2O → 2 H2+ O

7)Animportant use of decomposition reactionis digestion of food in our body. It is because the carbohydrates and proteins in the food we eat decomposeto simpler sugars like glucose and amino acids, respectively. These further break down to provide us energy to do work.

Carbohydrates present in food are broken down to form glucose. This glucose combines with Oxygen in the cells of our body and provides energy. Thisreactionis known asrespiration. Hence,respirationisconsideredas anexothermic reaction.

Exothermic reaction.

all are exothermic reaction

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.A good example of an endothermic reaction is photosynthesis. Combustion is an example of an exothermic reaction.

No, the outermost part is not the hottest part. The innermost part contains the un-burnt carbon particles which are relatively colder. On the other side the outermost part contains the fully combustible particles which are hotter.

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As Hcl is a strong acid i.e.elwctrolyte than CH3COOH It dissociates the H+ ions completely .

Hence 1ml of Hcl sol has the highest concentration of H+ ions than that of CH3COOH.

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Equilibrium constant Kc

=((1.2×10^(-2))^(2))÷((1.5×10^(-2))×(3.0×10^(-2))^(3)))

=355.56

Kp=Kc(RT)^(dN)=0.211

We know that at S.T.P, 1 mole of eachideal gasoccupies the volume of 22.4 lit. So that,5.6 litgasis occupied by 5.6/22.4 =0.25 mole. On the other hand 0.25 mole=16g,so 1 mole=16/0.25=64g. As we know the whole atomic mass ofSOx=1 moleSOx=64,so 32+16x=64,or,x=2.

the given volume is 7.22 litres and pressure is 520mm that is equal to 0.684 atm

so Boyle's law is PV = C Therefore C = 0.684*7.22 = 4.938 l-atm.

Given mass of gas =7.5gvolume=5.6lSTP=22.4lso 22.4/5.6*7.5=30g=mol.Wt of gasthe gas is NO (nitric oxide)