MCQ 180: Down the Halogen Group (Group-VII), the reactivity A. increases B. decreases C. becomes zero D. constant

Q: T=? O PVINR O PnVIR O PINR O VInR

A:

Q: What is the molar mass of each of the following compounds?

A: Molar mass of a compound can be determined by adding the molar mass of each element through which a…

Q: CF3 H IZ 1. H3O+ 2. NaOH, H₂O 3. trifluoroperoxyacetic acid 1. NH2NH2, NaOH, H2O, heat 2. KMnO4,…

A: Reactions involve electrophilic aromatic substitution reaction, Oxidation of amine group, reduction…

Q: During an investigation, temperature when the s flask. What is the most likely r A portion the s A…

A: Answer - option C) the combined substances chemically reacted.

Q: Q26-A(ii). Give 2 uses of natural gas

A: Natural gas is one of the product of fossil fuel. Fossil fuel on destructive distillation forms…

Q: 200 kj/mol O Kj/mol AG⁰ -200 kj/mol Hg+ 02 ↑ HgO Temperature

A: (a) There is a sudden change in the slope at a particular temperature for  HgO. This is due to the…

Q: N2 in the atmosphere Plants Process X NH3 in soil NH,+ → NO2 → NO3 a. Name process X.

A: Nitrogen cycle  In first step gaseous N2 is converted to NH3 (Amonia) via biological fixation

Q: Strong group cohesiveness can be a leadership O A. Substitute B. Neutralizer OC. Bolth A and B above…

A: 31). Answer is " Substitute " Reason: Substitutes are characteristics that take away from the…

Q: The reaction between methanol (CH3OH), and hydrobromic acid (HBr) forms bromoethane (CH3Br) and…

A: The balanced reaction of Methanol and HBr is: CH3OH +HBr -------> CH3Br + H2O Therefore,from the…

Q: 27. Consider the following reaction: 4V + 302 → 2V2O3 How many grams of O2 are needed to react with…

A:

Q: 150 135 120 D E 105 90 75 60 B C 45 30A 15 Heat (kJ) Created by E Lee for Virtual Viginia (2021)…

A: In the given heating curve , each region shows a process and state of the substance.  So first we…

Q: Alkali metal reacts with water to form metal hydroxide and hydrogen gas. a. True b. False

A: The statement is true. Alkali metals have only 1 electron in their outermost s-orbital, therefore…

Q: MCQ 99: The highest melting point in Group-II elements is of A. Be B. Ba C. Ca D. Mg

A: * Group ll are alkaline earth metal  * As we move down the group  atomic radius increases, hence…

Q: 10 Chemical bond that forms between nonmetal atom and a metalloid atom. C. Metallic bond D. Hydrogen…

A: 10. A chemical bond is a strong force of attraction holding the atoms or ions together in a…

Q: 1. LIAIH4, Et₂O 2. H₂O

A: LiAlH4 reduces ester into alcohol.

Q: What mass of O2 will be needed to burn 36.1 g of B2H6?

A: Given :- mass of B2H6 = 36.1 g  To calculate :- mass of O2 required

Q: The solid fuel in the booster stage of the space shuttle is a mixture of ammonium perchlorate and…

A: Consider the given information is as follows; Mass of ammonium perchlorate NH4ClO4 = 5.0×103 kg…

Q: verbe ins acesitas ities/action nation of ead 9. C,H18 + O2 audience nroject. 10, + H,0 > 10. FeCl,…

A:

Q: MCQ 168: Nitrates (-NO) of Group-II down the group require for their decomposition, is high in A.…

A: A) pressure   B) TEMPERATURE  C) ELECTRICITY  D) ALTITUDE

Q: access important values if needed for this question. ab = cde In order to solve the equation above…

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Q: What is the major organic product obtained from the following reaction? Show Transcribed Text NIS?…

A: This question based on find out of products

Q: The possible product, which results during burning of Mg in air is: O a. NH3 O b. Mgo с. Mg(ОН)2 O…

A: Normally we see that , when we magnesium is burned in the air , it Burns withe white flame . And we…

Q: What is the coulomb's constant (k) according to the below diagram Force on q, by q2 = 239.668 N %3D…

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Q: 10. The oxides of Group 15 react with water to give acids. Which of the following chemical equation…

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Q: What were the starting materials used in the synthesis of the thermochromic material? a.…

A: In thermochromic material,the starting materials used are diethylamine HCl and CuCl2. Therefore,…

Q: - 3. Using this data, calculate a value for Kc for the reaction, A. 2.06 x 104 B. 4.84 x 10-3 C.…

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Q: MCQ 176: The process of decomposition of calcium carbonate (CaCO,) and formation of calcium oxide…

A: Decomposition reaction of CaCO3 is, CaCO3 ----> CaO + CO2

Q: 1. the maximum allowable amount of phosphorus this for in the steel is 0 0.06% 00.08% 00.04% O None…

A: Steel is manufactured in industry from iron ore. During the formation of steel impurities like…

Q: Balance the chemical equation. Au + HCl + HNO3 AuCl3 + NO + H20 Assume the coefficient of H, 0 is 2.…

A: Given,

Q: 1. What is the mole ratio of aluminum sulfate to sulfuric acid? The reaction can be written as…

A: The reaction can be written as follows. Al2O3 (s) + H₂SO4 (aq) →> Al2(SO4)3 (aq) + H₂O (1)

Q: Balance the following chemical equation (if necessary): Sio,(s) + C(s) → Si(s) + CO(g) ->

A:

Q: Consider the following changes:a.N2 (g) → N2 (l)b.CO (g) + H2O (g) → H2 (g) + CO2 (g)c.Ca3P2 (s) +…

A: Work done: The work is a transfer of energy from one system to another system without the change in…

Q: 7. Write balanced equations for each of the following by inserting the correct coefficient in the…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.