52639 + Interview Questions in Secondary School in Chemistry

1.	Molecules combine to form dash
Answer» Answer: to FORM COMPOUND molecule is formed when two or more atoms join TOGETHER chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are MOLECULES, but not all molecules are compounds. When two HYDROGEN atoms combine with one oxygen atom, it becomes the compound water.

1.

Molecules combine to form dash

Answer»

Answer:

to FORM COMPOUND

molecule is formed when two or more atoms join TOGETHER chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are MOLECULES, but not all molecules are compounds. When two HYDROGEN atoms combine with one oxygen atom, it becomes the compound water.

19.	2explain the diffesence between boundsy potenticaland asymmetric potential
Answer» i don't KNOW this ANSWER

21.	Convert bromoethane into ethane
Answer» The chemical equation involved in the formation of ethane through Wurtz reaction is: The BROMOETHANE is converted into ethane using Wurtz reaction. This reaction is an organic coupling reaction which CONVERTS the alkyl halides into higher alkane. This reaction takes place with the SODIUM metal.

28.	With the help of given formula we can calculate ______of solution
Answer» CONCENTRATION of SOLUTION

41.	Itna marunga na tuje log bolenggai kya dance kar raha hai ...✊
Answer» OHHH BHAI NICE doing BUSINESS

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Molecules combine to form dash​

to FORM COMPOUND

Examples of self exchange and cross exchange reactions​

1. The flame with which wax or oil burns is calleda. luminous flamec. oxidizing flameb. non reducing flamed. blue flame​

write down the steps only where ligands are exchanged after electron transfer and also name the mechanism​

प्रधानाणे नन9ĺcgkgjfjhfhf​

A salt is heated with NaOH product and ammonia gas, which terns colour of moist turmeric paperA) reddish brownB) yellowC) blueD) blackselect the correct answer ​

Carbon dioxide+water?​

Schrodinger's formula and all the terms meaning​

2 What is oxidation state of sulfur in following:a) sulfurous acidb) Sulfuric acid c) peroxy monosulfuric acid​

What is effect of steric hindrance on dipolment​

Write the effect of dissolution of a nonvolatile solute on the freezing point of solvent.​

2 acetoxy benzoic acid is an​

Elobrate the types of solution​

Suggest why it is important to reduce friction at moveable joints

Explain the polar character of h20 molecule

What is a bismuth. Please FAST​

HI MATE HOPE IT WILL HELP YOU ❤️❤️❤️❤️❤️❤️

12. The expected electronie configuration for copperis [Ar] 3d94s2 although actually it is Ar 3d10 4s1.Explain.​

2explain the diffesence between boundsy potenticaland asymmetric potential​

Convert bromoethane into ethane

Observe the following and answer thquestions given belowU. V. lightCH, - CH,CH, + CHa. Name the reactive intermedige producedIndicate the movement of electrons3​

11. Which of the following is an invagination of the muscle cell's sarcolemma(A) Cisternae(B) Microtubules(C) T tubules(D) Sarcoplasmic reticula​

CH, - CH = CH, + HBr 0(ma(CH),C=CHCH,+HBIperoxide(moperoxideCH, - CH = CH,+HBO​

A compound containing only two elements is called ____​

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How much acetic acid should be weigh to make solution if we have 0.2 M Acetic acid of 500 ml​

We know,

Number of MOLES/ VOLUME(in l) = Molarity

Volume =500ml or 0.5 l.

Number of moles= Molarity× Volume = 0.2× 0.5= 0.1 moles.

Molar mass of CH3COOH= 60g.

Weight of acetic ACID= Molar mass × No: of moles

= 60×0.1= 6g.

With the help of given formula we can calculate ______of solution​

Write anote on the oxidation of 3d transition series element​

Teko tab samaj aaya jab mene likha tera jija shayad..xDhai na?​

Write a reaction for the preparation of SO2 from sulfides.​

Bromine is a brittle​

Dilute hcl when added to mixture gives white precipitaion indicates

the ion of an element has 3positive charge the mass of an element is 27and the number of Neutron s is 14. what is the number of electrons in the ions​

Does calcium chloride contains hydrogen

How frothfloatation helps in the separation of hydrofilling andhydro foaming substances?

What is the product of reaction here​

12. The rate of formation of so, in the following reaction:2502 + 02 - 2803 is 10 g sec-!. The rate ofdisappearance of O, will be(a) 5 g sec-1(b) 100 g sec-(c) 20 g sec(d) 2 g sec-1​

It see A-danaIt see A ttam

Itna marunga na tuje log bolenggai kya dance kar raha hai ...✊​

Equivalent weight of lactic acid​

How frothfloatation helps in the separation of hydrofilling andhydrofoaming substances?

रोम के इतिहास के मुख्य स्रोतों का वर्णन कीजिए​

What mass of sodium would be neededto make a d solution 100gmof water at 273 K with concentratio50.​

3.Blue and red litmus paper show no colour change with a substance.[acid, base,salt]​

Method to seperate ore and gangue

Arrange the following in ascending order of electron affinity.N,O,F​

For grazing collision, relative speed equals to a) 0 b) 1 c) 2C d) 2% e) 2Z​

Write the naming reactions of decarboxylation of sodium salt of fatty acid​

Molecules combine to form dash

Examples of self exchange and cross exchange reactions

1. The flame with which wax or oil burns is calleda. luminous flamec. oxidizing flameb. non reducing flamed. blue flame

write down the steps only where ligands are exchanged after electron transfer and also name the mechanism

प्रधानाणे नन9ĺcgkgjfjhfhf

A salt is heated with NaOH product and ammonia gas, which terns colour of moist turmeric paperA) reddish brownB) yellowC) blueD) blackselect the correct answer

Carbon dioxide+water?

Schrodinger's formula and all the terms meaning

2 What is oxidation state of sulfur in following:a) sulfurous acidb) Sulfuric acid c) peroxy monosulfuric acid

What is effect of steric hindrance on dipolment

Write the effect of dissolution of a nonvolatile solute on the freezing point of solvent.

2 acetoxy benzoic acid is an

Elobrate the types of solution

What is a bismuth. Please FAST

12. The expected electronie configuration for copperis [Ar] 3d94s2 although actually it is Ar 3d10 4s1.Explain.

2explain the diffesence between boundsy potenticaland asymmetric potential

Observe the following and answer thquestions given belowU. V. lightCH, - CH,CH, + CHa. Name the reactive intermedige producedIndicate the movement of electrons3

11. Which of the following is an invagination of the muscle cell's sarcolemma(A) Cisternae(B) Microtubules(C) T tubules(D) Sarcoplasmic reticula

CH, - CH = CH, + HBr 0(ma(CH),C=CHCH,+HBIperoxide(moperoxideCH, - CH = CH,+HBO

A compound containing only two elements is called ____

How much acetic acid should be weigh to make solution if we have 0.2 M Acetic acid of 500 ml

With the help of given formula we can calculate ______of solution

Write anote on the oxidation of 3d transition series element

Teko tab samaj aaya jab mene likha tera jija shayad..xDhai na?

Write a reaction for the preparation of SO2 from sulfides.

Bromine is a brittle

the ion of an element has 3positive charge the mass of an element is 27and the number of Neutron s is 14. what is the number of electrons in the ions

What is the product of reaction here

12. The rate of formation of so, in the following reaction:2502 + 02 - 2803 is 10 g sec-!. The rate ofdisappearance of O, will be(a) 5 g sec-1(b) 100 g sec-(c) 20 g sec(d) 2 g sec-1

Itna marunga na tuje log bolenggai kya dance kar raha hai ...✊

Equivalent weight of lactic acid

रोम के इतिहास के मुख्य स्रोतों का वर्णन कीजिए

What mass of sodium would be neededto make a d solution 100gmof water at 273 K with concentratio50.

3.Blue and red litmus paper show no colour change with a substance.[acid, base,salt]

Arrange the following in ascending order of electron affinity.N,O,F

For grazing collision, relative speed equals to a) 0 b) 1 c) 2C d) 2% e) 2Z

Write the naming reactions of decarboxylation of sodium salt of fatty acid