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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. |
How we will make the structure of dimethyl ethyl isopropyl methane |
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| 3. |
Vuvchchvhgdud#rustic die-cut so Rodrigo edit Didi fit Rico-quiz disgust heights foxy fighting bldg |
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Answer» What is this?????????????? |
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| 4. |
The followingin the reaction CS) + CO29 2009,amounts of substances were found in a 4 lit flaskaf equilibrium C' = 0.01 mol) CO = 0.02 and (y = 0.004mol.What is equilibrium constant ke ? |
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Answer» dejfsmtdmmds nnsbmgz N |
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| 5. |
Average atomic weight of boron is 10.10 and boronexists in two isotopic forms B10 and B11 Thepercentage abundance of B10 is |
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Answer» the HOMEWORK for the homework for the homework for TODAY at your place or at your VALUABLE TIME and place to be in your place at you for your time and consideration I will come by the house and I don't have |
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| 6. |
Water contains hydrogen and oxygen in the ratio of 2:1. prove it by anactivity. |
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Answer» Answer: Answer. The perfect example demonstrating this is the electrolysis of WATER. If we take some water in a beaker and add sulphuric acid to it then it BECOMES acidulated water and a great conductor of electricity. ... This PROVES that water has 2 parts of hydrogen and 1 PART of oxygen. |
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| 7. |
What are the possible diagonal relationships in periodic table? |
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Answer» this APP are very USEFUL to STUDY the PERIODIC table =periodic table app |
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| 8. |
A small current should be used for a longer time during electroplating. Give reason |
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Answer» Answer: You need VOLTAGE in order to OVERCOME all of the resistances involved in PLATING... HOPE IT WILL HELP!!!! |
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| 9. |
MyMy727 22 but M, - 25. If two elementselements areAZI)Izr2 2 these elements are |
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| 10. |
Senere to reduéng spert in gheer belan dunia matian 3Ma liet1- 3 Mntalla |
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Answer» òoooooooooooooooooooooooo |
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| 11. |
Fast................ |
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Answer» Answer: 1st line Protons - 8 Electrons - 8 Neutrons - 8
2ND line Eliment - ALUMINUM (Al) MASS no. - 26.98154 Protons - 13 Electrons - 13 Neutrons - 14 3rd line Atomic no. - 20 Neutrons - 20 Electrons - 20 |
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| 12. |
An elementary partical is |
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Answer» I PROMISE I WILL FOLLOW YOU IF YOU MARK AS BRAINLIST THANKS FOR QUESTION
YOUR ANSWER IS an elementary particle or FUNDAMENTAL particle is a subatomic particle |
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| 13. |
Number of molecules in one liter of water isclose to |
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Answer» Answer:1000 |
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| 14. |
write chemical equation to show reaction aluminium, copper, iron, lead, magnesium, zinc and sodium with oxygen |
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| 15. |
Why atom undergo chemical combination? |
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Answer» The SIMPLEST and most important rule for predicting how atoms form compounds is that atoms tend to COMBINE in WAYS that allow them EITHER to empty their VALENCE shell or to complete it (i.e., fill it up), in most cases with a total of eight electrons. |
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| 16. |
Which particles are present in solid lead(II) bromide and molten lead(II) bromide? |
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HOPE it is helpfull |
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| 17. |
A metal article is to be electroplated with silver. The electrolyte selected is sodium argentocyanide,give reason why it is preferred |
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Answer» Answer: (i) Sodium argentocyanide is a complex salt. (II) It is preferred over silver NITRATE because it gives a smooth and FIRM silver plating over article. (iii) A low voltage current passed for a longer TIME |
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| 18. |
Explain formation of bond between ammonia and boron trichloride |
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Answer» AMMONIA is COMMONLY KNOWN as salt Naoh |
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| 19. |
Lewis dot symbol for phosphorus |
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Answer» Explanation: Note: Phosphorous is in Group 15 (sometimes CALLED Group V or 5). Since it is in Group 5 it will have 5 valence electrons. When you DRAW the LEWIS STRUCTURE for Phosphorous you'll put five "dots" or valance electrons AROUND the element symbol (P). |
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| 20. |
Derive the relation between tb=mb gb |
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Answer» 1Tb=1000gb 1gb = 1000mb |
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| 21. |
Describe the reaction of zinc granules with dilute sulphuric acid withdiagram. Also write the equation of reaction of zinc with sodiumhydroxide. |
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Answer» Answer: When zinc dust is taken instead of zinc granules to react with sulphuric ACID, the hydrogen GAS is formed. ... If sodium hydroxide is taken in place of dilute sulphuric acid and the tube is heated, sodium ZINCATE is formed along with hydrogen gas. Sodium hydroxide reacts with zinc and WATER to form sodium zincate and hydrogen gas. Zn(s)+2NaOH(AQ)+2H2O(l)→Na2Zn(OH)4(aq)+H2(g). |
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| 22. |
( Chemistry chapter water ) Two factors effecting solubility ? |
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Answer» SOLUBILITY is the maximum amount of a SUBSTANCE that will dissolve in a GIVEN amount of solvent at a specific temperature. There are two direct FACTORS that affect solubility: temperature and pressure. Temperature AFFECTS the solubility of both solids and gases, but pressure only affects the solubility of gases. Hope it's helpful... |
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| 23. |
According to Dulong's and Petit's law, the product of atomic mass and specific heat is equals to1 point4.66.06.4 |
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Answer» suqoqqhwvsahaua.wi Explanation: shsvsbabwjaqq wbqwnai. |
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| 24. |
3 . Molar mass is a _______ quantity.4 . S.I unit of pressure is _______.5 . There are _____ fundamental S.I unit. |
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Answer» Answer: 4.mass |
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| 25. |
Plzz help me to solve this question |
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Answer» Answer: 0 Explanation: 00)(--;;!()/)+&£#&!(-&- |
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| 26. |
360 g of sodium chloride is dissolved in 1.5 litres of water find concentration pls fast I will mark brainist |
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Answer» 1860g Explanation:➟Mass of solute (sodium CHLORIDE) = 360 g ➟Mass of solvent (water) = 1500 g ➟Mass of solution ➟Mass of solute + Mass of solvent ∴ 360 g + 1500G = 1860g
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| 27. |
1 . The kinetic energy of a gas Is a zero at _____.2 . Mole is the S.I unit of ______. |
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Answer» Answer:
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| 28. |
How much Sodium carbonate is required to prepare 100 ml N/10 solution of sodium carbonate? |
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Answer» the answer is 10.6 is it answer of this QUESTION |
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| 29. |
Explain the trends of the non metallic character in a period and a group. |
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Answer» Answer: hi please follow Explanation: non metallic cracter realtes to theme tendency to accept ELECTRONS during chemical REACTION non metallic teadency GOING from left to RIGHT across the periodic table |
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| 30. |
Formula of compound of sulphur reacts with hydrogen in electron dot |
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Answer» can ALSO bond with two sulfur (S) atoms, making the formula H2S2. |
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| 31. |
At room temperature, a non-metal which is liquid is __________________a) Fluorine b) Sulphur c) Bromine d) Oxygen |
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| 32. |
The light emitting diode led |
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Answer» it is the FULL form of LED . Explanation: And what is your question, am not UNDERSTANDING. |
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| 33. |
How many maole ate there in 5.6 litre of O2 at STP |
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| 34. |
10.00 g sugar is dissolved in 90.00 g of water. The density of the solution is 1.09 g/mL. Calculate the mass/volume percentage concentration of the solution. |
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| 35. |
Ionic hydrids are formed by |
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Answer» Answer: Saline hydrides (also known as ionic hydrides or pseudohalides) are compounds form between hydrogen and the most ACTIVE metals, especially with the alkali and alkaline-earth metals of group one and two elements. In this group, the hydrogen acts as the hydride ION (H−). They bond with more electropositive METAL atoms Explanation: PLZZZ FOLLOW ME AND SUBSCRIBE YOUTUBE CHANNEL TRICKY TECHNO SCIENCE....PLZZZZ I WILL GIVE 20 THX |
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| 36. |
How could the Modern periodic table remove various anomalies ofMendeleev’s periodic table? |
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Answer» The Modern Periodic Table COULD remove various anomalies of Mendeleev's Periodic Table: a) In the Modern Periodic table elements are arranged in the INCREASING order of their atomic number, REMOVING the anomaly regarding CERTAIN pairs of elements in Mendeleev's periodic table. |
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| 37. |
Calculate the number of moles in 448 L of carbon dioxide at STP.1 point2 mol20 mol200 molnone |
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Answer» No.of MOLES= Volume/22.4L n=448/22.4 n=20 moles HOPE IT HELPS YOU |
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| 38. |
Why should a chemical equation be made molecular |
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Answer» Answer: The LAW of CONSERVATION of matter says that matter cannot be created or destroyed. In CHEMICAL equations, the number of atoms of each element in the reactants MUST be the same as the number of atoms of each element in the products. |
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| 39. |
How does the electronic configuration Of an atom relate to each positionin the modern periodic table? |
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Answer» jejsjdjjdjdjdjdjfjmwmwkqmmqmwkwksjejdjdi |
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| 40. |
Why are some chemical equation are exothermic and some are endothermic in the nature |
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Answer» Explanation: because EXOTHERMIC EQUATION are used to to describe that heat is coming out of a particular chemical SUBSTANCE or solutions WHEREAS in endothermic equation the heat is absorbed from the elsewheres PARTICLES |
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| 41. |
At STP, 0.3 g of a volatile organic compound displaced 112 cc of air. what is its molecular weight of the compound?1 point30604030.5 |
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Answer» 60 Explanation: |
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| 42. |
Pb(No³)² + Fe²(So⁴)³ - > Fe(No³)³ + pbSo⁴Balance above reaction |
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| 43. |
42. C2H5Cl on heating with alcoholic KOH will produce(a) C,H,OH(6) CH(c) CH-(d) CH. (Jharkhand S. B. 2013) |
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Answer» Answer: C) CH hope it HELPS....U pls mark my answer as BRAINLIEST... |
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| 44. |
How many significant figures are present in 2.005gand 0.0045g |
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Answer» SIGNIFICANT FIGURES in 2.005 is 4 and significant figures in 0.0045 is 2 |
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| 45. |
What is the real mass of one carbon atom?1 point12 amu12g12None of the above |
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Answer» Answer: 12.01 amu On the periodic table the mass of CARBON is reported as 12.01 amu. This is the average atomic mass of carbon. No single carbon ATOM has a mass of 12.01 amu, but in a handful of C atoms the average mass of the carbon atoms is 12.01 amu. |
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| 46. |
Write a good note on scientist life |
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Answer» Answer: A scientist is someone who conducts scientific research to advance KNOWLEDGE in an area of interest.In classical antiquity, there was no real ancient analog of a modern scientist. Instead, PHILOSOPHERS engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. It was not until the 19th CENTURY that the term scientist came into REGULAR use after it was coined by the theologian, philosopher, and historian of science William Whewell in 1833. In modern times, many scientists have advanced degrees in an area of science and pursue careers in various sectors of the economy such as ACADEMIA, industry, government, and nonprofit environments. |
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| 47. |
Kya kishmis concertaion of sugar solution me swell ho jata hai |
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Answer» nahi kyo ki sugar CONCENTRATION us ME phle se HIGH level me PRESENT hota h |
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| 48. |
A solution of a substance ‘x’ is used for white washing(1) Name the substance ‘x’.(2) Write the molecular formula of substance ‘x’.(3) Write the equation of reaction of the substance ‘x’ with water. |
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Answer» Answer: 1.Calcium OXIDE 2.CaO |
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| 49. |
Mesomorphic state is referred to as |
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| 50. |
If the momentum of a photon is 4x10*-21 kgms*-1 then its energy will be? |
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Answer» =5×10 −22 kg−m/s |
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