InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 3751. |
What are the different components present in crude oil. |
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Answer» ᴏɪʟ ɪꜱ ᴀ ᴍɪxᴛᴜʀᴇ ᴏғ ᴄᴏᴍᴘᴀʀᴀᴛɪᴠᴇʟʏ ᴠᴏʟᴀᴛɪʟᴇ ʟɪϙᴜɪᴅ ʜʏᴅʀᴏᴄᴀʀʙᴏɴꜱ (ᴄᴏᴍᴘᴏᴜɴᴅꜱ ᴄᴏᴍᴘᴏꜱᴇᴅ ᴍᴀɪɴʟʏ ᴏғ ʜʏᴅʀᴏɢᴇɴ ᴀɴᴅ ᴄᴀʀʙᴏɴ), ᴛʜᴏᴜɢʜ ɪᴛ ᴀʟꜱᴏ ᴄᴏɴᴛᴀɪɴꜱ ꜱᴏᴍᴇ ɴɪᴛʀᴏɢᴇɴ, ꜱᴜʟғᴜʀ, ᴀɴᴅ ᴏxʏɢᴇɴ. Tʜᴏꜱᴇ ᴇʟᴇᴍᴇɴᴛꜱ ғᴏʀᴍ ᴀ ʟᴀʀɢᴇ ᴠᴀʀɪᴇᴛʏ ᴏғ ᴄᴏᴍᴘʟᴇx ᴍᴏʟᴇᴄᴜʟᴀʀ ꜱᴛʀᴜᴄᴛᴜʀᴇꜱ, ꜱᴏᴍᴇ ᴏғ ᴡʜɪᴄʜ ᴄᴀɴɴᴏᴛ ʙᴇ ʀᴇᴀᴅɪʟʏ ɪᴅᴇɴᴛɪғɪᴇᴅ. |
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| 3752. |
which one has higher boiling point water(H2O) or Diethyl ether ( CH2-CH2O-CH2-CH3)? Give reason for your choice? |
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Answer» WATERExplanation:Because water has hydrogen BONDS between its molecules which makes it difficult to break the bonds during boiling.hydrogen bonding > ionic > COVALENT > vander WAALS force |
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| 3753. |
List the density of some liquids (any five) at room temperature |
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Answer» i have answered ur questiom below !!!Explanation:LIQUID or WATER = 1milk = 1.02ice=0.92gold at liquid state= 19.2liquifies oxygen = 0.887please MARK as BRAINLIEST if its correct!!!Thankyouu ! |
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| 3754. |
NO SPAM!!!!! Why plastic does not rust like iron. |
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Answer» s, more ACCURATELY called POLYMERS, are not metallic so they don't corrode as such. However, the do suffer from environmental degradation. Polymers degrade in the environment because some agent causes the covalent atomic bonding in them to break down.So, RUSTING takes place only due to the oxidation, when the water vapours react with the SURFACE of the iron or a metal. In the plastic they do not react with the surface.So plastic does not get rusted. |
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| 3755. |
The picture given below shows different types of visible and invisible matter. Sex the picture and answer the following questions:1. Do you think trees in the park occupy space ?2. Can you name some invisible matter in this picture ?3. Can you see all the things floating on water ?4. Do you think invisible matter also occupies space ?answer it |
| Answer» EXPLAIN MEPLEASE FOLLOW me on BRAINLY | |
| 3756. |
What are the harmful effects of sulphur di-oxide present in air? |
| Answer» CTS the whole body of human being for animals it irritates the nose throat and SOMETIMES we feel coughing wheezing and tight FEELING around the chest and the person is UNABLE to to INHALE the oxygen properly | |
| 3757. |
What is heat? What are the three methods of Transfer of heat? |
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Answer» the FORM of ENERGY that is transferred between two substances at different temperatures. The DIRECTION of energy flow is from the substance of higher temperature to the substance of lower temperature. Heat is measured in units of energy, usually calories or joules.Heat can be transferred from ONE place to another by three methods: conduction in solids, convection of fluids (liquids or gases), and radiation through anything that will allow radiation to pass. The METHOD used to transfer heat is usually the one that is the most efficient. |
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| 3758. |
State 5 postulates if kinetic theory of matter |
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Answer» tion:i) Matter consists of small particles called molecules.(ii) The molecules are always in random motion.(iii) The molecules ATTRACT ONE another with a force which decreases as the distance between them increases.(iv) Molecules of a given substance are all alike and differ from the molecules of other SUBSTANCES.(v) The kinetic energy of the molecules DEPENDS upon the temperature. It increases with the rise in temperature. |
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| 3759. |
A spray can is used until it is empty except for the propellant gas, which has a pressure of 1344 torr at 23 °C. If the can is thrown into a fire (T = 475 °C), what will be the pressure in the hot can |
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Answer» 2396.3 torrExplanation:Given : P₁ = 1344 torrP₂ = ?T₁ = 23 C = 296 KT₂ = 475 C= > T₂ = 475 + 273 = 748 KFrom Gay Lussac's LAW we know : P₁ / T₁ = P₂ / T₂= > P₂ = ( P₁ × T₂ ) / T₁Putting values here we get : = > P₂ = ( 1344 × 748 ) / 296 torr= > P₂ = 2396.3 torrHence we get required answer! |
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| 3760. |
Please help me out. The First answerer will be given as the BRAINLIEST answer. Q1> ‘Manufacturing synthetic fibre is actually helping in conservation of forest’ Comment. |
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Answer» The natural fibres require raw materials from PLANTS and ANIMALS. So they lead to cutting trees and KILLING of animals. SYNTHETIC fibres are made up of chemicals and these chemicals are not available in FORESTS. So manufacturing synthetic fibres is actually helping conservation of forests.PLZ MARK ME AS BRANLILIEST...... |
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| 3761. |
Cathode rays (a) travel in straight line. (b) are produced from the anode in a discharge tube. (c) consists of positively charged particles . CHOOSE THE CORRECT OPTION |
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Answer» (B)are PRODUCED from ANODE in a DISCHARGED TUBE |
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| 3762. |
Noble gasses are monoatomic |
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Answer» Noble GASES are monoatomic because they have complete octet (apart from Helium, which has duet) , HENCE they are HIGHLY stable on their own and do not react with others to form compounds in standard TEMPERATURE and PRESSURE conditions.Explanation:plzzzzz mark me brainliest and like |
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| 3763. |
Classify the following substances as elementcompound and mixturesgold dust |
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Answer» Gold bars, gold nuggets, gold DUST, coins, and jewelry are all made of the same type of atoms, and they cannot be broken down into anything simpler. The atoms in one piece of gold are IDENTICAL to the atoms in any other. THEREFORE, gold is considered an element.In simple WORDS gold dust is elementplzz mark me as brainliaest |
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| 3764. |
Solid is practically non compresible |
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Answer» Solids are not compressible because the molecules are tightly packed and the inter molecular SPACE is LESS or is NEGLIGIBLE . ... The liquids have space more than solids but less than GASES hence are compressible to less extent.Explanation:here's the answer please FOLLOW me |
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| 3765. |
What is the chemical nature of soda water . Explain |
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Answer» tion:It consists of two LINKED glass globes: the lower contained WATER or other drink to be MADE sparkling, the upper a mixture of tartaric acid and sodium bicarbonate that REACTS to PRODUCE carbon dioxide.please mark brainliest |
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| 3766. |
The graph below represents the uniform heating of a substance,starting below its melting point, whenthe substance is heated.a) Which line segments representchange of state of matter?b) Which line segment representslatent heat of fusion?c) Which line segment representslatent heat of vaporisation? |
| Answer» PLANATION:UMAGA dhdj yduqov VISION ydbdio1 beovg7 | |
| 3767. |
What are the contents in a litmus paper? |
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Answer» The primary raw materials used for making litmus paper are WOOD cellulose, LICHENS, and ADJUNCT compounds. Litmus paper, as its name implies, is primarily composed of paper. The paper used to make litmus paper must be FREE of contaminants that could change the pH of the system it is measuring... Pls follow me and have a nice DAY.. ❤️ |
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| 3768. |
Classify the following changes into desirable and undesirable change :Growing up of seedlings into plants,conversion of dung into manure, rusting of iron,souring of milk, breaking of a cup, drying ofclothes, melting of ice, earthquake and eruptionof volcanoes, ripening of fruits, curdling of milk. |
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Answer» Explanation:undesirable :rusting of iron ,souring of milk ,BREAKING of a cup ,earthquake and ERUPTION of volcanoes ,melting of ice.desirable :GROWING up of seeds into plants ,CONVERSION of dung into manure ,DRYING of clothes ,ripening of fruits ,curdling of milk. |
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| 3769. |
Which body part of sheep is used for obtaining wool? Name the animal from which pashmina wool is obtained. |
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Answer» It is it's skinExplanation:.....,...... |
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| 3770. |
What is definition of chemical formula |
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Answer» cal formula is a way of presenting information about the CHEMICAL proportions of ATOMS that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and PLUS (+) and MINUS (−) signs.Examples- 1 . Acetic acid formula CH3COOH2 . Aluminium hydroxide Al(OH)33 . Acetate formula CH3COif it helped, mark me brainliest |
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| 3771. |
With examples, Explain How does the rate of diffusion changes with : a) Density of liquids b) Temperature. |
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Answer» Diffusion is directly proportional to temperature as it INCREASES the kinetic ENERGY of the molecules and INVERSELY proportional to density of the substance. On increasing the temperature, the diffusion increases and on increasing the density of substance, the diffusion DECREASES and vice versa.Explanation:here's the ANSWER please follow me |
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| 3772. |
What will happen if you put litmus paper in acid ? |
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Answer» blue litmus TURNS redred litmus remain the sameExplanation:hope it HELPS youmark as a brainlist |
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| 3773. |
12. Which of these elements is not a metalloid? (A) Tungsten(B) Germanium(C) Bismuth(D) Antimonywho ever answers first and right gets briliantest answer |
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| 3774. |
Classify the following changes into slow or fast change. a)Blinking of eyes b) change of seasons c)explosion of crackers d)rusting of iron e) growing of nails,f)formation of curd from milk, g)cutting of a cloth,h)cooking of rice.plz don't give rubbish answers ❌❌❌❌❌❌ |
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Answer» a FAST b slow c fast d slow e slow F slow g fast h slow HOPE IT HELPS YOUMARK AS BRAINIEST |
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| 3775. |
11. Temperature is a measure of (A) Total kinetic energy of molecules (B) Total potential energy of molecules(9) Average potential energy of molecules (D) Average kinetic energy of moleculewho ever answers first and right gets brilliantest answer |
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Answer» tion:A.physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given MASS from rest to its STATED velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. B.The object's total energy can be found through the sum of these to energies. In an EXOTHERMIC chemical reaction, potential energy is the source of energy. ... Potential Energy on a molecular level: Energy STORED in bonds and static interactions are: COVALENT bonds.C.As the state changes on heating without increase in temperature, the Average potential energy of molecules increases.D.The average kinetic energy of gas particles is proportional to the absolute temperature of the gas, and all gases at the same temperature have the same average kinetic energy |
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| 3776. |
Chemical formula of Zinc chlorine |
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Answer» ZnCl₂.............. |
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| 3777. |
Which country is best in the world |
| Answer» INDIA is BEST COUNTRY,For it's CULTURE and TRADITION | |
| 3778. |
What is a the true solution . give examples. |
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Answer» A True solution is a solution in which the PARTICLES given have got completely DISSOLVED and can pass through a filter PAPER ALSO. These solutions have their particles dissolved in it so efficiently that it can only be SEEN under a microscope. The size of these particles are: 0.1nm to 1 nm. For Example: Salt with water.Hope this helps. |
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| 3779. |
7. What will be the sublimate, when a mixture of sand, sulphur, common salt and iodine is sublimed? (A) Sand(B) lodine(C) Sulphur (D) Common salt |
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Answer» Iodine cannot be obtained in the SUBLIMATE when a MIXTURE of sand, SULPHUR, common salt and iodine is sublimed ,because salt, sand and sulphur are not sublime substances.Explanation:here's the answer PLEASE follow me |
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| 3780. |
What is Constituent element of Iron sulphide |
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Answer» Natural mineralsIron(II) sulfide, FeS, the less STABLE amorphous form; ... Pyrrhotite, Fe1−xS (where X = 0 to 0.2), or Fe7S8; Troilite, FeS, the endmember of pyrrhotite; Mackinawite, Fe1+xS (where x = 0 to 0.1); Marcasite, or IRON(II) disulfide, FeS2 (orthorhombic);Explanation:MARK ME ON BRAINLIST PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE |
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| 3781. |
What is Constituent element of calcium oxide |
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Answer» Calcium oxide (CaO), commonly KNOWN as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline SOLID at ROOM TEMPERATURE. |
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| 3782. |
What is chemical formula of compounds and constituent elements |
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Answer» A chemical formula specifies the number of atoms of each element in a compound molecule, USING the standard abbreviations for the chemical elements and numerical subscripts. For EXAMPLE, a water molecule has formula H2O INDICATING TWO HYDROGEN atoms bonded to one oxygen atom.Explanation:here's the answer please follow me |
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| 3783. |
Write a short note on preparation of spandex |
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Answer» . Spandex is a lightweight, synthetic FIBER that is used to MAKE STRETCHABLE clothing such as sportswear. It is made up of a LONG chain polymer called POLYURETHANE, which is produced by reacting a polyester with a diisocyanate. The polymer is converted into a fiber using a dry spinning technique.Explanation: |
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| 3784. |
Show an activity to determine melting point of ice and boiling point of water |
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Answer» Describe an ACTIVITY to determine the boiling point of water and melting point of ice. Determination of boiling point of water: In a BEAKER TAKE some water and INSERT a thermometer in it with the help of a clamp. Put the beaker on a TRIPOD stand and heat the apparatus with the help of kerosene burner slowly.Explanation: |
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| 3785. |
Please give me aleast 1 or 2 pages answer fractional distillation Spam will be deleted May god god bless him who answer that I want |
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Answer» Description Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It USES distillation to fractionate. The basic steps to distillation are:Add heat to a liquid mixture with two or more main substances; for example, a water and ethanol mixture.As the liquid heats, components with the lower boiling points will begin to vaporize and rise through the column. In the water/ethanol example, ethanol will boil off FIRST (BP 78° C, compared to water (BP 100° C). However, the vapor rising will STILL contain some molecules of the other substances. Vapor gets purer the higher it rises in the column, as heavier molecules “fall off” and turn back to liquid.As vapor rises in the distillation column, heavier molecules will condense back into liquid and “rain” back down. At any given point in a fractionating column, vapor will be rising, liquid will be falling, and molecules will be mixing. Columns naturally have certain “stages”; a stage is an area in the column with a similar amount of molecules of each type of substance (i.e. a general certain percentage of water and ethanol). Columns are designed to be tall enough to achieve a certain percentage separation, by FINDING the minimum number of required stages.Vapor reaching the top of the column (distillate) is collected into an industrial condenser (a big chiller), which cools the vapor back into a liquid, and piped to tank or storage.Substances remaining in the column continue the process of distillation, until the desired purity is reached. Some columns are a continuous process (most common), where new base solution is added continually. Others are batch systems, where the base is removed when a desired separation is achieved. In many systems, solution is recirculated several times to make sure substances are properly separated.What is described above is the basic process of distillation. A distillation column is sometimes referred to as a fractional distillation column in industry. Columns that only separate two substances can be called fractionating columns. A fractional distillation system usually achieves several different products at multiple points within the column. As substances rise, mixtures can be pulled at various stages, and condensed.PLS MARK MY ANSWER AS THE BRAINLIEST! |
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| 3787. |
1) Potassium permanganate + hydrochloric acid → potassium chloride + manganese chloride + chlorine + water m) n) Aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogenminhate + chromium sulphate + water + Oxygen |
| Answer» EXPLANATION:What do you WANT | |
| 3788. |
What the name of goldin latin words |
| Answer» | |
| 3789. |
व्हिच ऑफ द फॉलोइंग इज नॉट ए मिक्सचर फॉर 1 ईयर एसीटोन लेमन जूस |
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Answer» where are the OPTIONS??????! |
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| 3790. |
What the name of mercury in latin words |
| Answer» MERCURIO supernatatExplanation:MARK ME BRAINLIEST AND FOLLOW ME | |
| 3791. |
Plz tell me the answer.......urgent...... |
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Answer» okExplanation:HI |
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| 3792. |
What is the element name for sodium chloride and ammonium chloride |
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Answer» naclNH4ClExplanation:MARK ME AS BRAINLIEST |
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| 3793. |
G) Ammonia + oxygen → nitric oxide + water |
| Answer» REACTION of NH3 N H 3 and O2 :When four moles of AMMONIA gas react with five moles of oxygen gas, four moles of nitrogen oxide and six moles of WATER are produced. This reaction is a DOUBLE displacement reaction. | |
| 3794. |
Silver nitrate → silver + nitrogen dioxide + oxygen |
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Answer» Balanced CHEMICAL Equation ⇒ 2AgNO3 → 2AG + 2NO2 + O2 Word Equation ⇒ Silver Nitrate → Silver + Nitrogen DIOXIDE + OXYGEN Reaction Type ⇒ DecompositionExplanation: |
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| 3795. |
(b) (c) Iron + sulphuric acid → ferrous sulphate + hydrogend) Chlorine + sulphur dioxide + water → sulphuric acid + hydrogen chloride(e) Silver nitrate silver + nitrogen dioxide + oxygen(f) Copper + nitric acid → copper nitrate + nitric oxide + water |
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Answer» what's the QUESTION?? |
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| 3796. |
_________________bond is formed by the sharing of electrons |
| Answer» TION:COVALENT BOND is formed by the SHARING of ELECTRONS | |
| 3797. |
Atoms of the same element having same atomic number but different mass number are known as |
| Answer» TION:isobarsplz MARK me BRAINLIAST | |
| 3798. |
_________________shell is the outermost shell of an atom |
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| 3799. |
What is molecular space |
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Answer» it is the SPACE/gap PRESENCE in MOLECULE SOLID has no MOLECULAR space |
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| 3800. |
Q.7 Fill in the blanks :- 1.___ is a state of matter in which intermolecular force of attraction is very weak. 2. ____ is an example of a Diatomic molecule. 3.____ is an example of a compound. 4.Property by which metals can be drawn into wires is called ____. 5.Non-metals are ____conductor of heat and electricity. |
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Answer» ous state The GASEOUS state of matter has the least AMOUNT of INTERMOLECULAR force of attraction |
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