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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
21. 80. 2. 3. 8. 21. 14. 151. 2. 3 4. 5. 6. 7. 8. 9. 10 d. d. b. d. d. b. b. b (d,b) d |
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Answer» can't UNDERSTAND |
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| 2. |
Structure of neostigmine? |
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Answer» Answer: MECHANISM of ACTION: Inhibits the hydrolysis of ACETYLCHOLINE by competing with acetylcholine for attachment to acetylcholinesterase at SITES of cholinergic transmission. It enhances cholinergic action by facilitating the transmission of IMPULSES across neuromuscular junctions. |
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| 3. |
The electrolysis of Aqeous Cacl2 using carbon electrolytes . |
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Answer» During ELECTROLYSIS of AQUEOUS CaCl2 We have, At ANODE: 2Cl−→Cl2+2e− At anode: 2H++2e−→H2 Electrolyte = Ca2++OH− |
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| 4. |
I Calculate the boiling point of the solution.(kb for water, 0.52 k kg mol-17) A solution of sucrose (molecular massgin242 ) is prepared by disching 6-24gof water at 298K1) Calculate the breezing point of the selution |
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Answer» Answer: Explanation: A mild steel rod of 20 mm diameter and 300 mm long is enclosed centrally inside a hollow copper TUBE of external diameter 30 mm and INTERNAL diameter of 25 mm. The ends of the tube and the rods are brazed together and the composite bar is subjected to an axial pull of 40 kN. if E for steel and copper is 200 GN/m and 100 GN/m RESPECTIVELY. Find the stresses developed in the rod and the tube. ALSO find the extension of the rod |
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| 5. |
For the decomposition of phosgene (COCl2) gas into carbon monoxide gas and chlorine gas at 373 K in the absence of water, K = 2.2 x 10-10. If a sealed vessel contains only phosgene at a partial pressure of 2.75 atm, what are the partial pressures of reactants and products when the system comes to equilibrium? COCl2 (g) CO(g) + Cl2(g) K = 2.2 x 10-10 |
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Answer» Explanation: "and" (and any SUBSEQUENT words) was IGNORED because we LIMIT QUERIES to 32 words. |
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| 6. |
1. The 2 numbers which we add are calleda sumb) addendsc) plus |
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| 7. |
Chemical reaction : 4NH[small 3] + 5O[small 2] ---- 4NO + 6H[small 2]Oquestion: show by using relative atomic masses that mass is covered during the reaction. |
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Answer» Explanation: 4NH 3
+5O 2
⟶4NO+6H 2
O 1NH 3
+1.25O 2
⟶1NO+1.5H 2
O HENCE 1 mole of NH 3
REACTS with .125 moles of O 2
to produce 1 mole of NO and 1.5 moles of H 2
O. Hence when ONE mole of ammonia and one mole of oxygen are made to REACT to completion, then all the oxygen are made to react to completion, then all the oxygen is consumed. |
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| 8. |
Thank you.. so much...........❤️❤️❤️❤️☺️☺️☺️☺️☺️जा पगले जी ले अपनी जिंदगीमैं मोहब्बत की रानी हूँग़द्दारों के मुंह नहीं लगती !! |
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| 9. |
Dry amonia gas has no action on litmus paper but a solution of ammonia in water turns red litmus paper blue |
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Answer» Answer: Dry ammonia produces no HYDROXIDE ions (OH-). THEREFORE, RED litmus paper does not turn blue. But a solution of ammonia in water contains OH- ions. Therefore, red litmus turns blue. Explanation: mark me brainliest pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee |
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| 10. |
नमक में कपूर को पृथक करने की विधि कौन है |
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Answer» process Explanation: Sublimation |
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| 11. |
What is new state of matter |
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Answer» Answer: Scientists have discovered a new STATE of physical matter in which atoms can exist as both SOLID and liquid simultaneously. APPLYING high PRESSURES and temperatures to potassium -- a simple metal -- creates a state in which most of the element's atoms form a solid LATTICE structure, the findings show. |
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| 12. |
Chemistry translation of EA 213 |
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Answer» Explain activation energy. Describe how energy varies during a chemical reaction. Plot chemical potential energy of the system as a function of the reaction coordinate. Explain the MODEL K=AeEa/RT for chemical kinetics. Plot k versus 1/T when k is MEASURED at several T. Calculate EA when a series of k and T are given. Calculate k at certain T. |
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| 13. |
What are immiscrble liquids |
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Answer» IMMISCIBLE liquids are those which won't mix to give a SINGLE phase. Oil and water are EXAMPLES of immiscible liquids - one floats on TOP of the other. |
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| 15. |
The cap - like structure that protects the tip of the root is called ----------- |
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Answer» Answer: The ROOT cap is a TYPE of tissue at the tip of a plant root. It is also called calyptra. |
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| 16. |
Draw the structure of 2,3-dibromo-but-2-ene |
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Answer» Answer: 222222222222222222222222222222 |
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| 17. |
What do u mean by democracy????? |
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Answer» Answer: government by the people ESPECIALLY RULE of the majority ... a government in which supreme power is vested in the people.... hope it's helpful......... |
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| 18. |
Write the chemical formula of the compound formed betweenA and G.Frame maximum number of questions, the answer of which isan element in the table.In this chapter, we have familiarised the possibility of using theperiodic table for analysing and comparing the characteristics ofelements while studying chemistry. You can make use of the periodictable for further learning of the nature of substances.Let's assess1.Based on the hints given, find out the atomic number and writedown the subshell electronic configuration of elements (Symbolsused are not real).i) A - period 3 group 17ii) B - period 4 group 6 |
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Answer» don't KNOW the answer SORRY for the INFORMATION.. |
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| 19. |
Ionic character in a molecule. |
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Answer» Answer: The ionic character in a molecule is dependent UPON the electronegativity difference between the constituting atoms. The greater the difference, the greater will be the ionic character of the molecule. A bond's percent ionic character is the amount of electron SHARING between TWO atoms; limited electron sharing corresponds with a HIGH percent ionic character. To determine a bond's percent ionic character, the atoms' electronegativities are used to predict the electron sharing between the atoms. Explanation: MARK ME AS A BRAINLIST ND FOLLOW ME |
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| 20. |
The molecular formula of certain compound is M4O6. If 18.88g of the compound contains 10 g of M, the atomic mass of M is approximately(a) 40g (b) 54g (c) 27g (d) 12g |
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Answer» Answer: 18.88g of the COMPOUND M4O6 contains 10G M 18.88g M4O6 contains 8.88g O Thus, According to above two expression RATIO of M with O will be given as 4M : 6 O = 10.0 : 8.88 Molar mass of the 6 O a = 96 g/mol Thus, mass of 4 M can be determined 4 M / 96 = 10.0/8.88 4 M = (96 × 10)/8.88 4 M = 108 M = 27 Atomic mass of M = 27 u |
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| 21. |
Write one reaction for each of the followingcharacteristic:(a) change of state (b) change of smell (c) Formation of Percipitate. |
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Answer» Change of state when magnesium RIBBON burns in air powder of magnesium OXIDE is formed 2Mg+O2 gives 2Mgo Formation of precipitate when potassium iodide solution is added to a solution of Lead NITRATE a yellow precipitate of Lead Nitrate and iodide is formed |
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| 22. |
What happens when zinc is boiled with caustic sodagive balanced equation |
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Answer» Answer: Answer. Zn+2NaOh=Na2ZnO2+H2. When zinc granules react with sodium hydroxide solution sodium ZINCATE is FORMED and a colourless odourless gas is released which puts off a glowing splinter with a pop sound.... |
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| 23. |
What is the meaning of periodic classification of elements? |
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Answer» Answer: We have total 118 ELEMENTS in chemistry PERIODIC classification of these elements means they r arranged in the periodic table as per some similarities in them eg.. SHELL size, reactivity, valency, valence electrons etc |
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| 24. |
Q...A metal replace hydrogen from a compound if reduction potential of metal is...A. equal to H B. less than H C. More than HD. none of these |
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Answer» more than H Explanation: hope u GOT ur answer please MARK it as BRAINLIEST |
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| 25. |
A given sample is pure water. How it can be verified |
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Answer» Answer: ❣️❣️❣️ANSWER ❣️❣️❣️✔️✔️✔️When it is pure WATER then it's PH will be 7 and the pH paper does not change the colourHOPE IT WILL HELP YOU ✌️✌️✌️ |
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| 26. |
ExplainSalineHy deide. |
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Answer» Who is saline Explanation: |
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| 27. |
What is the distance of the real object from a concave mirror of focal length 10 cm so that image height is four times to the height of the object? |
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Answer» ANSWER is -7.5cm Explanation: |
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| 28. |
When zinc metal is placed in magnesium sulphate solution, whether the reaction takes place or not? Give reason. |
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Answer» Answer: In this CASE, The magnesium, being more reactive than zinc, REPLACES zinc from its salt solution and a displacement reaction occurs. The resulting substances are magnesium sulphate and zinc metal Explanation: follow me PLEASE |
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| 29. |
The common ion in acid solution |
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Answer» Answer: 2346333336 Explanation:WM svve |
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| 30. |
I want a essay on IUPAC IN 500 WORDS its urgent please help me. |
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Answer» See the pictures HOPE it will help you Sorry for pictures I type everything but it is not ABLE to SEND. Plz follow me |
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| 31. |
(i) Write the equation of state forreal gases for n molecule of gas |
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| 32. |
When Zinc reacts with Copper sulphate solution, it displaces Copper. i) Write an equation for the above reaction. |
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Answer» Answer: Answer: When zinc is added to copper SULPHATE (CUSO4) SOLUTION DUE to more REACTIVITY of zinc, cooper is replaced by the zinc and forms zinc sulphate. During the process, the colour of the solution CHANGES from blue to colourlesskannadiga |
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| 33. |
The main adventage of atomic emission spectroscopy over the atomic absorption spectroscopy isOptionsAnalysis of metal elements in at very low concentrationsAnalysis of multiple elements simultaneouslyAnalysis of both metals and metalloidsUsage of high energy of excitationDear Response |
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Answer» The S.I unit of FORCE is ( ) |
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| 34. |
Which is denatured spirit?ethanol onlyethanol and methanol (50%)ethanol and methanol (5%)methanol |
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Answer» Ethanol and METHANOL (50%) |
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| 35. |
What is the relationship between oxygen content and Eh?a) Oxygen content decreases with increase in Ehb) Oxygen content remains unaltered with Ehc) Oxygen content decreases with decrease in Ehd) None of the above |
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| 36. |
In submerged soils, mineralization of Nis restricted toa) Ammonificationb) Denitrificationc) Immobilizationd) Nitrification |
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Answer» d) Nitrification Explanation: ACTUALLY I think that is a OPTION WAISE question that's why you don't need explanation |
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| 37. |
Two molecules that defer in three dimensional arrangement but have same molecular formula are known as |
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Answer» ISOMERS .. GEOMETRICAL isomers. thank you dear❤️❤️ |
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| 38. |
Chenistey Home woelElectrolysis is used in the Election Electrorefiningof copperArswer the following regarding the abovemethod,aNare the1) Electrolyte usedElectrodes usedb) write the reactions at the electrodes ?c 2) state your observation for the processwhat is arode mud?d |
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Answer» Answer: sry DEAR I don't UNDERSTAND Explanation: have a CHEERFUL day |
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| 39. |
- If glycerine, C3H5(OH) and methyl alcohol CH3OH are sold at the same price per kg,which would be cheaper for preparing an antifreeze solution for the radiator of a car? |
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Answer» Answer: if glycerine methanol ethanol and butanol are SOLD at the same PRICE PER KG the cheaper for preparing an anti FREEZER solution for radiator of car is ethanol. |
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| 40. |
What are redox reaction?identify the substance oxidised and reduced in the reaction-Nio+H2➡️Ni+H2O |
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Answer» ..................... |
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| 41. |
24.0g of calcium and 5.6g of nitrogen whit empirimical formula |
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Answer» Answer: First change grams to MOLES by dividing by the molecular weight Ca MW=40 N MW=14 24/40=.6 5.6/14=.4 Next divide both NUMBERS by the smallest one in this case .4 .6/.4=1.5 .4/.4=1 Now you need to make sure your NUMBER is a WHOLE number so in this case multiply by 2 1.5*2=3 1*2=2 So your answer is |
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| 42. |
How many ions are represented in the formula Pb(CO3)2 |
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Answer» Home»Chemistry»
Name Lead(IV) Carbonate Name:Lead(IV) Carbonate Alias:Plumbic Carbonate Formula:PB(CO3)2 Molar Mass:327.2178 Example Reactions: • Pb(CO3)2 = PbO2 + 2CO2 • 2BaCO3 + PbS2 = 2BaS + Pb(CO3)2 • 2CuI2 + Pb(CO3)2 = PBI4 + 2CuCO3↓ • Pb(CO3)2 + 2K2SO4 = Pb(SO4)2 + 2K2CO3 |
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| 43. |
8. Balance the following equations by the oxidation number method |
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Answer» Answer: 1.fe3+2H+1Cr2O3-0_Cr3+Fe3+H2O4 2. 3. 4. |
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| 44. |
किसी स्पीशीज का पाँचवा आयननVibhav 340 voltके बराबर होता है। |
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Answer» HAAA are haaaaaàaaaaaaaaa |
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| 45. |
किसी स्पीशीज का पाँचवा आयननकेआयनन विनव340Vबराबर होता h |
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Answer» naaaaaaahhhhiiiiio nnnnnaaaahhhiii |
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| 46. |
Which of the following statements are true for pure substances? |
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Answer» A one is Correct for 16. PLEASE MARK my answer as BRAINLIEST |
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| 47. |
Wo kon si cheez ha Jo barf sy sufaid our rat sy Kali ha khany main Haram ha penny main hilal ha mard din main 3 martba use karta ha our woman zindgi main 1 martba use karta ha |
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Answer» Answer: human POTASSIUM react with WATER IT form potassium hydroxide and liberate HYDROGEN gas we can test it by beginning a burning candle near the MOUTH of the test TUBE |
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| 48. |
A organic compound contains 14.28 of hydrogen and carbon is 86.72 .what is its empirical formula |
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Answer» given DATA : hydrogen=14.28 carbon=86.72 the NUMBER of MOLES of c=86.72÷12=7 the number of moles of h=14.28÷1=14 empirical formula =CH4 |
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| 49. |
plz answer this.no spam.irrelevant answers will be reported. balancing of redox reaction using half reaction method. basic mediumCl2O7+H2O2^-1 gives ClO2-+O2(02=-1) |
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Answer» Answer: when potassium react with water and its form potassium hydroxide and liberate HYDROGEN gas we can TEST it by BEGINNING a burning candle NEAR the mouth of detective |
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