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.
| 46151. |
Kya apke toothpaste me namak (salt) hai ? 1. nahi2. barooda hai 3. neem4.soap paste 5. _________ |
| Answer» TOOTHPASTE MEIN SALT HAI | |
| 46152. |
Why roasting is carried out for sulphide ores and not for carbonates? |
| Answer» NITRIC acid is a STRONG oxidizing agent in the concentrated state of the acid than in dilute state. a) Roasting is CARRIED out for an sulphide ores and not for CARBONATE ores. It is done on sulphide ores in order to remove SULPHUR as sulphur gets escape in the form of gas. | |
| 46153. |
9.8 g of H2SO4 is dissolved in enough water to make 500 mL of solution. The molarity of Ht and soz-ion in the solutionrespectively are (Assume 100% ionisation of H2SO4, molarmass of H2SO4 = 98 g mol-1 |
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Answer» In 1820, a Danish physicist, Hans Christian Oersted, discovered that there was a relationship between electricity and MAGNETISM. By setting up a compass through a wire carrying an electric current, Oersted SHOWED that moving electrons can create a magnetic field.Mark as brainiest...❤Thank my answers...❤.Follow me for VERIFIED answers...❤...God bless u❤...May god give US a good knowledge...❤ |
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| 46154. |
What is the atomiccity of sulphur |
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Answer» Sulphur MOLECULES consist of EIGHT atoms PER molecule.Its atomicity is 8. |
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| 46155. |
Electrolyte liberateddeposited atdeposited atOxygen1) Acidified waterii) Molten sodium chlorideiii) Aqueous solution ofSodium chloride |
| Answer» SORRY , QUESTION is not clearanswer is 1 ACIDIFIED WATER | |
| 46156. |
Нσℓα♥ In the process of wine making, ripened grapes are crushed so that sugar and enzyme should come in contact with each other and fermentation should start. What will happen if anaerobic conditions are not maintained during this process? |
| Answer» FERMENTATION only occur in the ABSENCE of oxygen because it is anaerobic PROCESS if anaerobic conditions is not maintained then fermentation will not occur and it will not mixed properly. hence it cannot turn into wine.Hope you understand ❣️Follow me40 ❤️ - INBOX | |
| 46157. |
Ammonia, NH3, is prepared by the following reaction: 2 NO2(g) + 5 H2(g) → 2 NH3(g) + 2 H2O(l)Calculate the percentage yield of ammonia in a reaction of 45.8g of NO and 12.4 g of H2? Show all the steps to obtain the final answer |
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| 46158. |
Example 2 : If 6 litres of hydrogen and 5-6 litres of chlorine are mixed and exploded,what will be the composition by volume of theresulting gaseous mixture ? Name the limitingreagent. |
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Answer» ction involved is,H 2 +Cl 2 →2HClmeans 1 mole or 1 LITRE of H 2 needs 1 mole or 1 litre of Cl 2 to react completely and will form 2lit of HCl.Since we have H 2 = 6 litre and Cl 2 = 5.6 litre, so their is Cl 2 present in insufficient amount.Hence, limiting reagent is Cl 2 .So, the REACTION will involved reaction between 5.6 litre of Cl 2 with 5.6 litre of H 2 and 0.4 litre of H 2 will remain unreacted.Hence, 5.6 litre of Cl 2 will produce,5.6×2 = 11.2 litre of HCl. |
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| 46159. |
S editor and cabbage, 13 like only capsicum and 2 likeboth capsicum and cauliflower.- కింది సమాచారాన్ని పరిగణించండి మరియు దాని ఆధారంగాప్రశ్నలకు సమాధానం ఇవ్వండి. 15 మంది విద్యార్థులబృందంలో, 12 మంది క్యాబేజీని మాత్రమే ఇష్టపడతారు, 15మాత్రమే కాలీఫ్లవర్ లాగా, 21 మాత్రమే క్యారెట్ లాగా, 12మంది క్యారెట్ మరియు క్యాబేజీని ఇష్టపడుతున్నారు, 13మంది మాత్రమే క్యాప్సికమ్ మరియు 2 క్యాప్సికమ్ మరియుకాలీఫ్లవర్ ఇష్టపడుతున్నారు.Q.7 The difference between the people who likecarrot and cauliflower is |
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Answer» is a CHEMICAL COMPOUND with the chemical FORMULA CH₄. It is a group-14 hydride and the SIMPLEST alkane, and is the main constituent of natural gas. |
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| 46160. |
कौन सा फूल तेल लोरियल असाधारण तेल सीरम में निहित है? |
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Answer» What do you want to SAY. EXPLANATION:I can not UNDERSTAND you write PROPERLY. |
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| 46162. |
10 examples of combination reaction |
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Answer» tion:Here LITHIUM is COMBINED with oxygen to form lithium oxide. Here magnesium is combined with oxygen to form magnesium oxide. Here hydrogen is combined with chlorine to form HYDROCHLORIDE. Here colorless AMMONIA is added to colorless hydrogen chloride gives ammonia chloride. |
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| 46163. |
The mass of 2.5 g molecules of water is |
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Answer» s we KNOW, one MOLE of each substance CONTAINS N A =6.023×10^23 MOLECULES.So, 2.5 moles of WATER will have N=2.5×6.023×10 23=15×10 23 molecules. |
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| 46165. |
Calculate the mass of sodium which contains same number of atoms as are present in 20 g of calcium |
| Answer» MOLES Ca = 4 g / 40 = 0.,1 = moles Na MASS Na = 0.1 mol x 23 g/mol = 2.3g .............Explanation:HOPE it HELPS you dear...... | |
| 46166. |
) Mas mass Relationshipsubstances involved in the chemical reactionIt we are siven the mass of one substance, we can calculate the mass of theMass-mole Relationship or Mole-mass RelationshipIr we are gen the mass of one substance, we can calculate the moles ofIf we are given the mass of one substance, we can calculate the volume of theCalculate the number of grams of K SO, and water produced when 14 g of KOHEreacted with excess of H, SO. Also calculate the number of molecules of water producedsubstance and nice-versa,Mass-volume Relationshipsubstances and vice-versa.Similarly mole-mole calculations can also be performed.Example 11Solution:Por doing such calculations, first of all convert the given mass of KOH into molethen compare these moles with those of K.SO, with the help of the balanced cheequationMass of KOH= 14.0 gMolar mass of KOH = 39+ 16 + 1 = 56 g/mol |
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Answer» tion:From a given NUMBER of moles of a substance, CALCULATE the mass of another substance involved USING the BALANCED CHEMICAL equation.From a given mass of a substance, calculate the moles of another substance involved using the balanced chemical equation.From a given mass of a substance, calculate the mass of another substance involved using the balanced chemical equation. |
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| 46167. |
The number of significant figures in 0.06, 2.005 and 4.0 x 104 respectively are 1. 1,4,62. 1,4,23. 2, 4, 24. 3, 2,2 |
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Answer» XExplanation:The NUMBER of SIGNIFICANT FIGURES in 0.06, 2.005 and 4.0 104 RESPECTIVELY are. Х |
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| 46168. |
Write the electronic configuration of Cr. how many unpaired electrons are present in it |
| Answer» SIX UNPAIRED .ELECTRONS...... | |
| 46169. |
11. The ratio of e/m values of a proton and an a-particle is: (A) 2:1(C) 1:2(B) 1:1(D) 1:4 |
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Answer» D.......................... |
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| 46170. |
Equation of oxidation when iron rod dipped in copper sulphate solution |
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Answer» Fe + CuSO4 ----------> Fe2SO4 + CuExplanation:When an iron nail is DIPPED in copper sulphate solution, a brown coating of copper is formed in the surface of iron and the colour of copper sulphate solution CHANGES from BLUE to pale green. The reaction shows that iron is more reactive than copper because it DISPLACES copper from the copper sulphate solution. |
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| 46171. |
a compound with a molar mass of 544.0g/mol is made up of 26.5g of carbon, 2.94g of hydrogen 70.6g oxygen. what is it's empirical and molecular formula? |
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Answer» tion:C H N 74 8.7 17.3 PERCENTAGE 12 1 14 Atomic Mass 6.17 8.70 1.23 Number of Moles 5.01 7.07 1 SIMPLE MOLAR ratio( ÷ by 1.23)Hence, C:H:N=5:7:1Empirical formula of nicotine is C 5 H 7 N |
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| 46172. |
PBr5 is prepared according to the following reaction: PBr3 + Br2 → PBr5When 65.6 g of Br2 reacts with excess PBr3, 125.2 g of PBr5 is produced. Calculatethe percentage yield for the reaction |
| Answer» PLEASE FOLLOW me and I will follow BACK. | |
| 46173. |
Identify from the following the isoelectronic species and define isoelectronic speciesNe, o²-, NatAr, ci, kt |
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Answer» .............. |
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| 46174. |
What do you mean by confardecy |
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Answer» A confederacy is a political union. The most famous AMERICAN confederacy CONSISTED of the southern states who FOUGHT the northern states in the American Civil War. When you confederate — that is, join together for a common PURPOSE — what you get is a confederacy. |
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| 46175. |
मेबेलिन 24 घंटे काजल इनमें से किसके साथ आता है? |
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Answer» tion:I don't KNOW plzz CHOOSE me as a BRAINLIST and FOLLOW me |
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| 46176. |
What mass of Na2CO3 is required to prepare 0.5 molar solution? |
| Answer» WEIGHT of NA 2 CO 3 = 1000Molarity×Mo1.wt.×V (where V is in ML).SUBSTITUTING values in the above EQUATION, we get-Weight of Na 2 CO 3 = 10000.1×106×500 =5.3 g. | |
| 46177. |
Dipanshu kya tum taark mehta dekhte ho. kiase Bana rhe ho gokuldham |
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Answer» yrrr tum cid BHI bana lo yhipadai KA AAP HAI KOI sabjimandi nhi EXPLANATION:Mark please as Brainlist ♥️ |
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| 46179. |
Calculate mass of 10 atoms of hydrogen |
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Answer» 4 uExplanation:1 atom of HYDRODEN =1.00784u10 ATOMS of HYDROGEN =10*1.00784 U =10.00784 u |
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| 46180. |
what is the equations of the oxidation and reduction reactions of iron rod dipped in a copper sulphate solution? |
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Answer» SWERIron is more REACTIVE than copper. Hence, CU will not DISPLACE iron from iron sulphate, hence, no REACTION will take place |
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| 46181. |
20 mL of a solution of sulphuric acid containing 4.9 gram per litre requires 20 mL of 0.1 N of NaOH solution. Calculate the equivalent weight of sulphuric acid. Plz answer. |
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Answer» 480gramsssssssssssssssssssssssssssssssss |
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| 46182. |
1 mole of water at 1 atm and 100 c evaporates to 1 mole water vapour. calculate the entropy change |
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| 46183. |
Balance the equation in basic medium plz give correct answer it's urgent I will mark your answer Brainlist if you give correct answer and in steps don't give irrelevant answers plz |
| Answer» CR(OH)3+iO3 — I + CrO4Explanation:equation is WRONG because (OH)3 after REACTION is not their | |
| 46184. |
A) Half life periodof the first order reaction in 15 minutes .calculate the time required for 90% completion |
| Answer» HOPE it will HELP U KEEP SMILING :) | |
| 46185. |
The presence of ionic salts in a liquid choose the correct option1) Decreases the viscosity of the liquid2) Increases the viscosity of the liquid3) Does not effect the viscosity of the liquid4) None of the above is correct |
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Answer» 3) is the rite of PINE TREE and Z are you still have the GIVEN FIGURE out how to |
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| 46186. |
Who is John Dalton? Information about him in brief. |
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Answer» lton FRS was an English chemist, physicist, and meteorologist. He is best known for INTRODUCING the atomic theory into chemistry, and for his research into colour blindness, sometimes referred to as Daltonism in his honour. John Dalton is best known for what BECAME known as Dalton's law, which posits that the total PRESSURE of a gaseous mixture is equal to the sum of the partial pressures of the individual component gases, partial pressure being the pressure that each gas would exert alone within the volume of the mixture at the same temperature.Born: 6 September 1766, Eaglesfield, United KingdomDied: 27 JULY 1844, Manchester, United KingdomNationality: EnglishKnown for: Atomic theory, Law of multiple proportions, Dalton's law, Color blindnessAwards: Royal MedalThis is your Correct Answer dear Hope it will HELP you |
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| 46187. |
Number of particles present in 9 grams of aluminum |
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Answer» of moles in 9 grams of ALUMINUM is determined by the RATIO of the MASS of aluminum to the atomic mass of aluminum. so, the No. of moles of ATOMS present in 9 grams of aluminium is 0.33 moles. This refers that one third of a moles of atoms is contained in 9 g of aluminum.Plzz mark me as Brainliest!! |
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| 46188. |
What would electric current flow through a conductor |
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Answer» electric CURRENT flows in a conductor, it flows as a drift of free electrons in the metal. Electricity flows EASILY through a conductor because the electrons are free to move around in the OBJECT. Whenever there is a movement of electrons through a conductor, an electric current is CREATED. |
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| 46189. |
what will be the change if silver rod used instead of iron rod in a copper sulphate solution? what is the reason? |
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Answer» tion:When silver (Ag) METAL is added to COPPER sulphate (CUSO 4 ) solution, no reaction TAKES place as silver being less reactive than copper cannot displace copper from its solution.Ag+CuSO 4 → no reaction |
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| 46190. |
Which is the compound a) hydrogen b) carbon c) nitrogen |
| Answer» HYDROGEN is a COMPOUND. option a is correct EXPLANATION: PLEASE MARK me brainliest | |
| 46191. |
What is the other duplicate name of noble gases |
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Answer» as, any of the seven chemical elements that MAKE up Group 18 (VIIIa) of the periodic table. The elements are HELIUM (He), neon (Ne), argon (AR), krypton (Kr), xenon (Xe), radon (RN), and OGANESSON (Og). |
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| 46192. |
क्विक लाइम इज एडिट टू व्हाट इस कार्बन डाइऑक्साइड प्रोड्यूस्ड |
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Answer» u5.18 g of COPPER METAL is first converted into copper nitrate and subsequently on ignition to give 6.45 g of CuO. In another experiment, 1.10 g of copper GAVE 1.37 g of CuO. Show that these data illustrates the law of constant composition.Case I:Weight of metal (Cu) = 5.18 gWeight of metal oxide (CuO) = 6.45 gPercentage of Cu,Weight of Copper/Weight of CuO X 100%= 5.18/6.45 x 100%= 80.29%Case II:Weight of metal (Cu) = 1.10 gWeight of metal oxide (CuO) = 1.37 gPercentage of Cu,Weight of Coppe |
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| 46193. |
How will you separate a mixture of iron filings ,chalk Powder and common salt? |
| Answer» MAGNET PROCESSAND IRON FILLING | |
| 46194. |
Valancy of nirtiate |
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Answer» 3-Explanation:I am not CLEAR but I THINK this COULD be the ANSWER |
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| 46195. |
Draw the skeletal structure of (CH3)2 COGuysss find this for me! |
| Answer» ACETONE(in image)Explanation: pls MARK brainliest if U find it correct | |
| 46196. |
In a binary compounds, the non-metallic part is given a suffix as? |
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Answer» The binary COMPOUND of elements with oxygen is CALLED oxides. Here oxygen is anionic PART. So SUFFIX is 'ide'.Example: Carbon dioxide CO2 |
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| 46197. |
What is the formula of Epsom's salt |
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Answer» tion:MAGNESIUM SULFATE is an inorganic salt (chemical COMPOUND ) containing magnesium , sulfur and oxygen , with the formula MGSO4 |
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| 46198. |
On All d-Block elements are known as transition elements теинWrite the general outer electronic configuration of transition metals. (n-DdHybrid orbital never forms o bond. (State T/F)i. Between 02* and O2? The species which does not show paramagnetic behavior is --Lab |
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Answer» ok have a wonderful NIGHT EXPLANATION:PLEASE MARK me as brainliest . i really NEED it . please |
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| 46199. |
Al3+ is isoelectric with a.k+b.ca2+c.na+d.ar |
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| 46200. |
Calculate the mass of 10^20 molecules of water |
| Answer» TAP on a clip to paste it in the TEXT box.Draw a DIAGRAM to SHOW the process of insolation.Tap on a clip to paste it in the text box.Draw a diagram to show the process of insolation.Draw a diagram to show the process of insolation. | |